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Technical Publications

2124012 Revision 14

CT ProSpeed Series Component Replacement

Copyright 1995, 1996, 1997, 1999, 2000, 2001, 2002 by General Electric Company

Operating Documentation

 

 

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS MEDICAL SYSTEMS REV 0

2124012

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WARNING

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

AVERTISSEMENT

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THIS SERVICE MANUAL IS AVAILABLE IN ENGLISH ONLY. IF A CUSTOMER’S SERVICE PROVIDER REQUIRES A LANGUAGE OTHER THAN ENGLISH, IT IS THE CUSTOMER’S RESPONSIBILITY TO PROVIDE TRANSLATION TRANSLATIO N SERVICES. DO NOT ATTEMPT TO SERVICE THE EQUIPMENT UNLESS THIS SERVICE MANUAL HAS BEEN CONSULTED AND IS UNDERSTOOD. FAILURE TO HEED THIS WARNING MAY RESULT IN INJURY TO THE SERVICE FAILURE T PROVIDER, OPERATOR OR PATIENT FROM ELECTRIC SHOCK, MECHANICAL OR OTHER HAZARDS.

CE MANUEL DE MAINTENANCE N’EST DISPONIBLE QU’EN ANGLAIS. SI LE TECHNICIEN DU CLIENT A BESOIN DE CE MANUEL DANS UNE AUTRE LANGUE QUE L’ANGLAIS, C’EST AU CLIENT QU’IL INCOMBE DE LE FAIRE TRADUIRE. NE PAS TENTER D’INTERVENTION SUR LES ÉQUIPEMENTS TANT QUE LE MANUEL SERVICE N’A PAS ÉTÉ CONSULTÉ ET COMPRIS. LE NON-RESPECT DE CET AVERTISSEMENT PEUT ENTRAÎNER CHEZ LE TECHNICIEN, L’OPÉRATEUR OU LE PATIENT DES BLESSURES DUES À DES DANGERS ÉLECTRIQUES, MÉCANIQUES OU AUTRES.

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WARNUNG 

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DIESES KUNDENDIENST–HANDBUCH EXISTIERT NUR IN  ENGLISCHER SPRACHE. FALLS EIN FREMDER KUNDENDIENST EINE ANDERE SPRACHE BENÖTIGT, IST ES AUFGABE DES KUNDEN FÜR EINE ENTSPRECHENDE ÜBERSETZUNG ZU SORGEN. VERSUCHEN SIE NICHT, DAS GERÄT ZU REPARIEREN, BEVOR DIESES KUNDENDIENST–HANDBUCH NICHT ZU RATE GEZOGEN UND VERSTANDEN WURDE. WIRD DIESE WARNUNG BEACHTET, SO KANN ES WARNUNG NICHT BEACHTET, KANN ES ZU VERLETZUNGEN DES KUNDENDIENSTTECHNIKERS, DESMECHANISCHE BEDIENERS ODER DES PATIENTEN DURCH ELEKTRISCHE SCHLÄGE, ODER SONSTIGE GEFAHREN KOMMEN.

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AVISO

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ESTE MANUAL DE SERVICIO SÓLO EXISTE EN INGLÉS. SI ALGÚN PROVEEDOR DE SERVICIOS AJENO A GEMS SOLICITA UN IDIOMA QUE NO SEA EL INGLÉS, ES RESPONSABILIDAD DEL CLIENTE OFRECER UN SERVICIO DE TRADUCCIÓN. NO SE DEBERÁ DAR SERVICIO TÉCNICO AL EQUIPO, SIN HABER CONSULTADO CONSUL TADO Y COMPRENDIDO ESTE MANUAL DE SERVICIO. LA NO OBSERVANCIA DEL PRESENTE AVISO PUEDE DAR LUGAR A QUE EL PROVEEDOR DE SERVICIOS, EL OPERADOR O EL PACIENTE SUFRAN LESIONES PROVOCADAS POR CAUSAS ELÉCTRICAS, MECÁNICAS O DE OTRA NATURALEZA.

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MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 0 REV  0

2124012

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ATENÇÃO 

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AVVERTENZA 

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ESTE MANUAL DE ASSISTÊNCIA TÉCNICA SÓ SE ENCONTRA DISPONÍVEL EM INGLÊS. SE QUALQUER OUTRO SERVIÇO DE ASSISTÊNCIA TÉCNICA, QUE NÃO A GEMS, SOLICITAR ESTES MANUAIS NOUTRO IDIOMA, É DA RESPONSABILIDADE DO CLIENTE FORNECER OS SERVIÇOS DE TRADUÇÃO. NÃO TENTE REPARAR O EQUIPAMENTO SEM TER CONSULTADO E COMPREENDIDO ESTE MANUAL DE ASSISTÊNCIA TÉCNICA. O NÃO CUMPRIMENTO DESTE A VISO PODE POR EM PERIGO A SEGURANÇA  AVISO DO TÉCNICO, OPERADOR OU PACIENTE DEVIDO A‘ CHOQUES ELÉTRICOS, MECÂNICOS OU OUTROS.

IL PRESENTE MANUALE DI MANUTENZIONE È DISPONIBILE SOLTANTO IN INGLESE. SE UN ADDETTO ALLA MANUTENZIONE ESTERNO ALLA GEMS RICHIEDE IL MANUALE IN UNA LINGUA DIVERSA, IL CLIENTE È TENUTO A PROVVEDERE DIRETTAMENTE DIRETT AMENTE ALLA TRADUZIONE. SI PROCEDA ALLA MANUTENZIONE DELL’APPARECCHIATURA SOLO DOPO AVER CONSULTATO IL PRESENTE MANUALE ED AVERNE COMPRESO IL CONTENUTO.

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NON TENERE CONTO DELLA PRESENTE AVVERTENZA POTREBBE FAR COMPIERE OPERAZIONI DA CUI DERIVINO LESIONI ALL’ADDETTO ALLA MANUTENZIONE, ALL’UTILIZZATORE ED AL PAZIENTE PER FOLGORAZIONE ELETTRICA, PER URTI MECCANICI OD AL ALTRI TRI RISCHI.

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CT PROSPEED SERIES COMPONENT REPLACEMENT

MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 0 REV  0

2124012

IMPORTANT! . . . X-RAY PROTECTION X-ray equipment if not properly used may cause injury. Accordingly, the instructions herein contained should be thoroughly be  thoroughly read and understood byElectric everyone who will Medical use the equipment beforewill yoube attempt toassist place this equipment in operation. The General Company, Systems Group, glad to and cooperate in placing this equipment in use. Although this apparatus incorporates a high degree of protection against x-radiation against x-radiation other than the useful beam, no practical design of equipment can provide complete protection. Nor can any practical design compel the operator to take adequate precautions to prevent the possibility of any persons carelessly exposing themselves or others to radiation. It is important that everyone having anything to do with x-radiation be properly trained and fully acquainted with the It is recommendations of the National Council on Radiation Protection and Measurements as published in NCRP Reports available from NCRP Publications, 7910 Woodmont Avenue, Room 1016, Bethesda, Maryland 20814, and of the International Commission International  Commission on Radiation Protection, and take t ake adequate steps to protect against injury. injury. The equipment is sold with the understanding that the General Electric Company, Medical Systems Group, its agents, The equipment and representatives have no responsibility for injury or damage which may result from improper use of the equipment. Various protective Various  protective material and devices are available. It is urged that such materials or devices be used.

    All electrical installations that are preliminary to positioning of the equipment at the site prepared for the equipment shall be performed b y licensed electrical contractors. In addition, electrical feeds into the Power Distribution Unit shall be performed  by by licensed electrical contractors. Other connections between pieces of electrical equipment, calibrations, and testing shall be performed by qualified GE Medical personnel. The products involved (and the accompanying electrical installations) are highly sophisticated, sophisticated, and and special special engineering engineering competence competence is is required. In performing all electrical work on these products, GE will use its own specially trained field engineers. All of GE’s electrical work on work  on thes these e products products will will comply comply with with th the requirements of of th the applicabl applicable e electrica electricall codes. codes. The purchaser of GE equipment shall only utilize qualified personnel (i.e., GE’s field engineers, personnel of third-party service companies with with equivalen equivalentt training training,, or license licensed d electricians) electricians) to to perfor perform m electrica electricall servicin servicing g on th the equipment. equipment.

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CT PROSPEED SERIES COMPONENT REPLACEMENT

MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 0

2124012

DAMAGE IN TRANSPORTATION All packages should be closely examined at time of delivery. If damage is apparent, have notation “ damage in shipment”” written on all shipment all copies  copies of the freight or express bill before before delivery  delivery is accepted or “signed for” by a General Electric representative or a hospital receiving agent. Whether noted or concealed concealed,, damage MUST MUST be  be reported to the carrier immediately upon discovery, or in any event, within 14 days after receipt, and the contents and containers held for inspection by the carrier. A transportation company will not pay a claim for damage if an inspection is not requested within this within  this 14 14 day  day period. Call Traffic and Transportation, Milwaukee, Milwaukee, WI (414) 827–3449 / 8*285–3449 8*285–3449 immediately after damage is found. At this time be ready to supply name of carrier, delivery date, consignee name, freight or express bill number, item damaged and damaged  and extent of damage. Complete instructions regarding claim procedure are found in Section “S” of the Policy & Procedure Bulletins.

OMISSIONS & ERRORS GE personnel, please use the GEMS CQA Process to report all omissions, errors, and defects in this documentation. GE personnel,  please contact your GE Sales or Service represenatives. Customers, please Customers,

CAUTION Do not use the following devices near this equipment. equipment. Use of these devices near this equipment could cause this equipment to malfunction. Devices not to be used near this equipment: Devices which intrinsically transmit radio waves such as; Devices which as; cellular phone, radio transceiver, transceiver, mobile radio radio transmitter, transmitter, radio–controlled toy, toy, etc. Keep power to these devices turned off when near this equipment. Medical staff in charge of this equipment is required to instruct i nstruct technicians, patients and other people who may be around this around  this equipment to fully comply with wi th the above regulation.

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CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 14

2124012

REVISION HISTORY REV

DATE

PRIMARY REASON FOR CHANGE

0 . . . . . April 12, 1995 . . . Initial release 1 2 3 4 5

. . . . . July 21, 1995 . . . August 31, 1 19 995 .  Dece Decemb mber er 1, 1995 1995 . . . January 1, 1996 . . . . . June June 15 15,, 1 199 996 6

6 Nov Novemb ember er 30, 30, 199 1996 6 7 . . . . . Ap Apri rill 15, 15, 1997 1997 8 . . . . . May 20, 1999 9 Dece Decemb mber er 27, 27, 1 199 999 9 10 . . . . Ju June ne 20, 20, 200 2000 0 11 . . . . . July 6, 2001 12 . . . Sept. 30 30, 20 2001 13 . . March 11, 2 20 002 14 . . . . April 1 17 7, 20 2002

... ... ... ... ...

Temp Cont Box replacement is added. EMC 80 infomation is added. CE Mark Markin ing g ((EM EMC C1 100 00)) iinf nfom omat atio ion n iis s add added ed.. VE Table Information Sl Slip ip Ri Ring ng Infor Informa matio tion n del delet eted ed,, F Fun unct ctio iona nall C Che heck ck/A /Adj djus ustme tment nt re refe fere renc nce e info inform rmat atio ion n cha chang nged ed to CD–ROM . . . Ti Tilt lt Poten Potentio tiomet meter er Wi Wire re Repla Replacem cement ent p proc rocedu edures res adde added, d, New New HV tank tank infor informat mation ion . . . OC OC–R –Rea earr Co Conn nnec ecto torr Boa Board rd,, MO MOD Dd dri rive ve,, Fron Front– t–Ac Acce cess ssib ible le Gan Gantr try y (For (For Rena Renais issa sanc nce e 2) . . . Ported from tool book to PDF file. . . . SI unit unit Conv Conver erti tion on Table able . . . SI unit unit Conv Conver erti tion on Table able for for llbf bf–f –ft, t, oil– oil–le less ss wash washer er ad adde ded d . . . Added axial drive belt replacement procedure . . . Added: Ga Gantry Ro Rotation C Co ounter . . . Modified: Table Oi Oil pump . . . Added: He Head H Ho older Ru Rubber Sh Sheet.

LIST OF LIST  OF EFFECTIVE PAGES PAGES PAGE

REV

Title page . . . . . . . . . 14 Title page Title  page rear . . blank Warning a to d . . . . . . 0 A . . . . . . . . . . . . . . . . . 14 B . . . . . . . . . . . . . . blank i to iv . . . . . . . . . . . . . . 8 v to vii . . . . . . . . . . . . 10 viii . . . . . . . . . . . . . blank

PAGE

REV

Tab 1 (OC) Tab 1 i . . . . . . . . . . . . . . . . . . . 8 ii . . . . . . . . . . . . . . blank 1–1 to 1–24 . . . . . . . . . 8 2–1 to 2–37 . . . . . . . . 8 2–38 . . . . . . . . . . . blank Tab 2 (TABLE/GANTRY) Tab 2 (TABLE/GANTRY) i to ii . . . . . . . . . . . . . 14

PAGE

REV

1–1 to 1–73 . . . . . . . . 12 2–1 to 2–53 . . . . . . . . 14 Tab 3 (DAS/DETECTOR) i . . . . . . . . . . . . . . . . . . . 8 ii . . . . . . . . . . . . . . blank 1–1 to 1–6 . . . . . . . . . . 8 2–1 to 2–6 . . . . . . . . . . 8

A

PAGE

REV

3–1 to 3–4 . . . . . . . . . . 8 4–1 to 4–4 . . . . . . . . . . 8 5–1 to 5–2 . . . . . . . . . . 8 Tab 4 (XG) Tab 4 i . . . . . . . . . . . . . . . . . . . 8 ii . . . . . . . . . . . . . . blank 1–1 to 1–32 . . . . . . . . . 8

PAGE

REV

Tab APPENDIX A–1 to A–4 . . . . . . . . . 8

Blank/Rear cover . . . . –  

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS blank

2124012

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CT PROSPEED SERIES COMPONENT REPLACEMENT

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2124012

BEFORE USING THIS MANUAL The CT ProSpeed series is especially dangerous because it is a continuous rotation gantry with high voltages conThe CT con ducted through its slip rings. The hazards, although sometimes obvious, need to be recognized since the potential for serious injury or death exists.

 DEATH OR SERIOUS INJURY!! READ AND TH THOROUGHL OROUGHLY UNDERSTAND THE SAFETY GUIDELINES MANUAL.

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CT PROSPEED SERIES COMPONENT REPLACEMENT

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CONTENTS

OPERATOR OPERAT OR CONSOLE COMPONENT REPLACEMENT (Tab 1) OPERATOR CONSOLE (Qj/Qj–b TYPE) OPERATOR OPERATOR OPERAT OR CONSOLE (Zj/Zj–a TYPE) TABLE/GANTRY TABLE/GANTR Y COMPONENT REPLACEMENT (Tab 2) GANTRY TABLE DAS/DETECTOR DAS/DETECT OR COMPONENT REPLACEMENT (Tab 3) DAS BOARD (Xe TYPE) DAS BOARD (SS TYPE) DETECTOR DETECT OR (Xe TYPE) DETECTOR DETECT OR (SS TYPE) TEMP CONT ASSY X–RAY X–RA Y GENERAT GENERATOR COMPONENT REPLACEMENT (Tab 4) X–RAY X–RA Y GENERATOR GENERATOR

APPENDIX Symbols and Classification

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NOTE Applicable Products and Subsystem Designators This Component Replacement Manual is written for the CT products listed in the table below. below. Almost the same Gantry (except DAS/Detector), X–ray Generator, and Table subsystem models are commonly used Almost the for these for these products. Subsystem models Subsystem  models Operator Console, DAS/Detector, DAS/Detector, and PDU (Power Distribution Unit) are not commonly used for these products, these  products, as shown in the table. Note also that the three different product models are named the same name “ProSpeed.” In In this  this manual, to refer to a correct subsystem, designators “Qj T Type”, ype”, “’SS Type Type”, ”, ... , as written in the “OC DesignaDesignator”, “DAS/Detector tor”,  “DAS/Detector Designator”, and “Model Number” columns are used. PRODUCT NAME

ProSpeed S

OPERATOR CONSOLE (OC)

DAS/DETECT OR

PDU

Operation Display Device

CPU Board

OC Designator

Detector Type

DAS/Detector Designator

Model Number

Liquid Crystal Display

CPW

Qj Type

Xe Gas

Xe Type

P9180AB/   P9180AF

(See Note 2)

2121798 (See Note 2)

ProSpeed SX Lemage ProSpeed (See Note 1)

Qj–b Type

ProSpeed S Fast ProSpeed SX Power Lemage SX Lemage SX/E ProSpeed Lemage Supreme Plasma Display

ProSpeed VX ProSeed Accell ProSeed Accell EI

Solid olid–s –sta tate te

SS Ty Type

FMP1

Zj Type

Xe Gas

Xe Type

P9180AB/   P9180AF

CPW

Zj–a Type

Solid–state

SS Type

2121798 (See Note 3)

ProSpeed ProSeed ProSpeed Plus ProSeed EF ProSpeed Advantage ProSeed SA Note 1

This P ProSpe roSpeed ed is a an n upgra upgraded ded mod model el of Pr ProSpe oSpeed ed S or P ProSpe roSpeed ed SX (GEMS– (GEMS–AM AM and GAMS– GAMS–A). A).

Note 2

ProS ProSpeed, peed, Pr ProSpe oSpeed ed SX Powe Power, r, or Le Lemage mage SX can can have an SS T Type ype DAS/Detec DAS/Detector tor by an option, option, otherwise, otherwise, these have an Xe Type DAS/Detector DAS/Detector..

Note 3

In the ca case se of Upgrade Upgrade,, P9180 P9180AB AB or P9180 P9180AF AF PD PDU U will still still be used in instead stead of of 2121798 2121798 PDU. PDU. LCD

PD 2121798

Qj/Qj–b TYPE OC

Zj/Zj–a TYPE OC

Xe TYPE

iii

SS TYPE

P9180AB/AF

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

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2124012

NOTE (continued) For the For  the system with CE Marking label: Two kinds of the sytem exist in Qj–b systems. One is the system with the CE marking label, and another without the Two kinds CE Marking. CE  Marking. The CE Marking label is attached attached to the rear side of the OC near near rating plate.

CE Marking CE  Marking Label

0459 Qj–b TYPE OC REAR VIEW

Manual Reference The part numbers for service manuals which are referred to in this manual are specified in the table below. below. PRODUCT NAME

MANUAL PART NUMBER Inst Instal alla lati tion on

ProSpeed S

2124011

Func Functi tion onal al Ch Chec eck/ k/A Adjus djustm tmen entt

Sa Safe fetty Guid Guidel elin ine es

P9011AT

P9011AW

P9019AE

P9019AG

ProSpeed SX Lemage ProSpeed ProSpeed S Fast ProSpeed SX Power Lemage SX ProSpeed Lemage Supreme ProSpeed VX ProSeed Accell ProSeed Accell EI ProSpeed ProSeed ProSpeed Plus ProSeed EF ProSpeed Advantage ProSeed SA

P9011AT

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NOTE (continued) Torque Notation Changed to SI Unit The unit expressed on the torque wrench supplied by GEYMS has been changed from “kgf cm” to “N m” (SI Unit). 



Therefore, for the torque values (kgf cm) of this manual, convert “N m” using the following conversion formula and table. 



Conversion Formula: xx (N m) = xxxx (kgf cm) x 0.098 



Conversion Table: Table: 1 kgf cm = 0.098 N m 



Coversion: kgf cm –> N m 

kgf cm 

0

1

2

3



4

5

6

7

8

9

Nm 

0

0

0.0981

0.1961

0.2942

0.3923

0.4903

0.5884

0.6865

0.7845

0.8826

10

0.9807

1.0787

1.1768

1.2748

1.3729

1.4710

1.5690

1.6671

1.7652

1.8632

20

1.9613

2.0594

2.1574

2.2555

2.3536

2.4516

2.5497

2.6478

2.7458

2.8439

30

2.9420

3.0400

3.1381

3.2361

3.3342

3.4323

3.5303

3.6284

3.7265

3.8245

40

3.9226

4.0207

4.1187

4.2168

4.3149

4.4129

4.5110

4.6091

4.7071

4.8052

50

4.9033

5.0013

5.0994

5.1974

5.2955

5.3936

5.4916

5.5897

5.6878

5.7858

60

5.8840

5.9820

6.0800

6.1781

6.2762

6.3742

6.4723

6.5704

6.6684

6.7665

70

6.8646

6.9626

7.0607

7.1587

7.2568

7.3549

7.4529

7.5510

7.6491

7.7474

80

7.8452

7.9433

8.0413

8.1394

8.2375

8.3355

8.4336

8.5317

8.6297

8.7278

90

8.8260

8.9239

9.0220

9.1200

9.2181

9.3162

9.4142

9.5123

9.6104

9.7084

100

9.8065

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CT PROSPEED SERIES COMPONENT REPLACEMENT

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NOTE (continued) Conversion Formula: xx (kgf cm) = xxxx (N m) x 10.2 



Conversion Table: Table: 1 N m = 10.2 kgf cm 



Coversion: N m –> kgf cm 

Nm 

0

1

2

3



4

5

6

7

8

9

kgf cm 

0

0

10

20

31

41

51

61

71

82

92

10

102

112

122

133

143

153

163

173

184

194

20

204

214

224

235

245

255

265

275

286

296

30

306

316

326

337

347

357

367

377

388

398

40

408

418

428

439

449

459

469

479

490

500

50

510

520

530

541

551

561

571

581

592

602

60

612

622

632

643

653

663

673

683

694

704

70

714

724

734

745

755

765

775

785

796

806

80

816

826

836

847

857

867

877

887

898

908

90

918

928

938

949

959

969

979

989

1000

1010

100

1020

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NOTE (continued) Referrence for lbf ft 

Conversion Formula: xx (lbf ft) = xxxx (N m) x 0.737 



xx (N m) = xxxx (lbf ft) x 1.356 



Conversion Table: Table: 1 N m=0.737 lbf ft 



Coversion: N m –> lbf ft 

N m 

0

1

2

3



4

5

6

7

8

9

lbf ft 

0

0

0.737

1.474

2.211

2.948

3.685

4.422

5.159

5.896

6.633

10

7.370

8.107

8.844

9.581

10.318

11.055

11.792

12.529

13.266

14.003

20

14.740

15.477

16.214

16.951

17.688

18.425

19.162

19.899

20.636

21.373

30

22.110

22.847

23.584

24.321

25.058

25.795

26.532

27.269

28.006

28.743

40

29.480

30.217

30.954

31.691

32.428

33.165

33.902

34.639

35.376

36.113

50

36.850

37.587

38.324

39.061

39.798

40.535

41.272

42.009

42.746

43.483

60

44.220

44.957

45.694

46.431

47.168

47.905

48.642

49.379

50.116

50.853

70

51.590

52.327

53.064

53.801

54.538

55.275

56.012

56.749

57.486

58.223

80

58.960

59.697

60.434

61.171

61.908

62.645

63.382

64.119

64.856

65.593

90

66.330

67.067

67.804

68.541

69.278

70.015

70.752

71.489

72.226

72.963

100

73.700

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GE MEDICAL SYSTEMS MEDICAL SYSTEMS blank

2124012

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CT PROSPEED SERIES COMPONENT REPLACEMENT

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OPERATOR CONSOLE COMPONENT REPLACEMENT TABLE OF CONTENTS SECTION

PAGE

SECTION 1 SECTION  1 – OPERAT OPERATOR CONSOLE (QJ/QJ–B TYPE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–1

1-1 1-2 1-3 1-4 1-5 1-6

POWER SUPPLY +12 VOLTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . POWER SUPPLY +5 VOLTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . KEY BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SUB (UPPER) KEY BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TPC SUB BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TOUCH PANEL (LIQUID CRYSTAL DISPLAY) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–1 1–3 1–6 1–7 1–10 1–11

1 1--7 8 1-9 1-10 1-11 1-12

H RP DPD FLAO YIS DK ISD KRDIV RE IV.E . .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. FOOT PEDAL ASSY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TOUCH PANEL FRONT COVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . REAR CONNECTOR ASSY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MAGNETIC OPTICAL DISK DRIVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1 1– –1 14 6 1–17 1–18 1–20 1–23

SECTION 2 SECTION  2 – OPERAT OPERATOR CONSOLE (ZJ/ZJ–A TYPE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 2-2

PLASMA DISPLAY UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MAGNETIC OPTICAL DISK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2-1 Removing the MOD Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2-2 Installing the MOD Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

i

2–1 2–1 2–7 2–7 2–16

OPERATOR CONSOLE

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

MEDICAL SYSTEMS GE MEDICAL SYSTEMS blank

2124012

ii

OPERATOR CONSOLE

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 8

2124012

SECTION 1 – OPERATOR CONSOLE (QJ/QJ–B TYPE) Note Type OC. This section applies to Qj Type or Qj–b Type This section For Zj Type Type or Zj–a Type OC, see Section 2, OPERAT OPERATOR CONSOLE (Zj/Zj–a TYPE).

1-1

POWER SUPPLY SUPPLY +12 VOL VOLTS TS

Special Equipment 

Power Supply +12 VDC

1

Proceed until step END  ; Understand and follow the Safety Guidelines Manual.

2

power.. Turn OFF the OC main power

3

Volt supply is shown in illustration 1–1. Remove the front OC cover. The +12 Volt

4

Pop free and remove the plastic guard from the front of the power supply terminal.

5

Mark and remove the five wires, four screws, screws, from the front terminal. Refer to illustration 1–1.

6

Unscrew the two front two front support screws and slide the power supply unit forward and out of the OC. Refer to illustration 1–1. tion  1–1.

7

Slide the new +12 Volt power supply into place and attach the wires removed from the old unit.

8

Screw the front support screws into place.

9

power.. Turn ON the OC main power

10

Perform +12 VDC Functional check and Adjustments. (Refer to Functional Check & Adjustment, Operator Console, DC Power Supplies.)

11

Install the front OC cover. cover.

12

END

1–1

OPERATOR CONSOLE

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 8

1-1

2124012

POWER SUPPLY SUPPLY +12 VOL VOLTS TS (CONTINUED)

PWR

+12 VOLT POWER SUPPLY SUPPLY

ORANGE BLACK

BLUE BROWN

SUPPORT SCREWS SUPPORT  SCREWS (2)

OC +12 VOLT POWER SUPPLY ILLUSTRATION 1–1

1–2

OPERATOR CONSOLE

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 8 REV  8

1-2

2124012

POWER SUPPLY SUPPLY +5 VOL VOLTS TS

Special Equipment 

Power Supply +5 VDC

1

Proceed until step END  ; Understand and follow the Safety Guidelines Manual.

2

Turn OFF the OC main power power..

3

Volt supply is shown in illustration 1–2. Remove the front OC cover. The +5 Volt

4

Remove the +12 Volt power supply by referring to section 1-1, POWER SUPPL SUPPLY Y +12 VOLTS VOLTS..

5

Pop free and remove the plastic guard from the front of the +5 Volt power supply terminal.

6

Mark and Unscrew the four terminal wires, two screws, screws, from the front terminal. Refer to illustration 1–2.

7

Unscrew the two front support screws and slide the power supply unit to the left.

8

Remove the front plate and wires from the power supply unit by unscrewing the two inner (+) and two outer (hex) screws.   Refer to illustration 1–3. screws.

9

Slide the power supply unit forward and out of the OC.

10

Install the new +5 Volt power supply unit by performing steps 9 to 4 in their reverse order. order.

11

Turn ON the OC main power power..

12

Perform +5 VDC Functional check and Adjustments. (Refer to Functional Check & Adjustment, Operator Console, DC Power Supplies.)

13

Install the front OC cover. cover.

14

END

1–3

OPERATOR CONSOLE

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 8

1-2

2124012

POWER SUPPLY SUPPLY +5 VOL VOLTS TS (CONTINUED)

PWR

BLUE BROWN

+5 VOLT VOLT POWER SUPPLY SUPPLY

SCREWS (2)

OC +5 VOLT POWER SUPPLY ILLUSTRATION 1–2

1–4

OPERATOR CONSOLE

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 8 REV  8

1-2

2124012

POWER SUPPLY SUPPLY +5 VOL VOLTS TS (CONTINUED)

PWR

RIGHT INNER SCREW

ACCESS HOLE TO TO LEFT INNER SCREW

ACCESS HOLE TO TO RIGHT INNER   SCREW LEFT HEX–SCREW PLEXI–GLASS (WIRES NOT SHOWN)

OC +5 VOLT POWER SUPPLY FRONT PLATE ILLUSTRATION 1–3

1–5

OPERATOR CONSOLE

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 8 REV  8

1-3

2124012

KEY BOARD

Special Equipment 

Key Board

1

Proceed until step END  ; Understand and follow the Safety guidelines Manual.

2

Turn OFF the OC main power power..

3

Remove the bottom OC panel (six screws).

4

Unscrew the two side brackets (four upward facing screws) while supporting the keyboard.

5

Disconnect the key board connector from the back of the key board.

6

Connect the new keyboard and mount it into place using the side brackets; Do not touch the bottom of the key board.

7

Turn ON the OC main power power..

8

Verify that the key board is operating properly and that the keys move smoothly; especially the upper and side keys.

9

Install the bottom OC panel (six screws).

10

END

1–6

OPERATOR CONSOLE

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 8 REV  8

1-4

2124012

SUB (UPPER) KEY BOARD

Special Equipment 

Sub (Upper) Key Board

1

Proceed until step END  ; Understand and follow the Safety guidelines Manual.

2

power.. Turn OFF the OC main power

3

Lower the CRT to a safe position on the floor. floor.

4

Remove the two rubber caps and two screws from the top of the Operator Console and remove the top cover. cover.

5

Switch OFF the OC power breakers. Refer to illustration 1–4.

6

Remove the front OC cover.

7

Unscrew the four front panel floppy disc drive screws shown in illustration 1–11. 1–11.

8

Tilt the left side of the panel slightly into the OC and then carefully pull the panel/FDD assembly out.

9

Disconnect all rear connectors connectors from the floppy disc drive/panel assembly; assembly; refer to illustration 1–11. 1–11. Do not reremove the drive from the panel assembly. assembly.

10

Loosen the top SRT SRT screws and slide the bottom plate plate backwards as shown in illustration 1–4.

11

Unscrew the three bottom screws underneath underneath the OC top bar frame. Refer to illustration 1–5

12

Carefully pull the sub key board assembly and remove all connectors.

13

Install the new sub key board assembly by performing steps 12 to 3 in their reverse order. order. 

For Qj–b TYPE OC Only: Installation Notice of OC TOP Cover. The OC top cover contains two tabs on it front edge. Install the cover so that its tabs are aligned with the frame securely. securely. Proper installation allows the top cover to be flush with the OC keyboard cover. cover. Refer to Illustration 1–5. 14

Turn ON the OC main power. power. Refer to illustration 1–4.

15

Verify that the key board is operating properly and that the keys move smoothly. smoothly.

16

END

1–7

OPERATOR CONSOLE

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 8

1-4

2124012

SUB (UPPER) KEY BOARD (CONTINUED)

OC BREAKERS

SUB KEY BOARD

SRT   SCREWS SRT

BOTTOM BOTT OM PLATE PLATE

SRT

SUB KEY BOARD TOP VIEW ILLUSTRATION 1–4

1–8

OPERATOR CONSOLE

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 8 REV  8

1-4

2124012

SUB (UPPER) KEY BOARD (CONTINUED)

TABS

OC TOP TOP COVER

FRAME

OC TOP TOP BAR FRAME

PWR

BOTTOM SCREWS (3)

OC TOP COVER/SUB KEY BOARD FRONT VIEW ILLUSTRATION 1–5

1–9

OPERATOR CONSOLE

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 8 REV  8

1-5

2124012

TPC SUB BOARD

Special Equipment 

TPC Sub Board END  ; Understand and follow the Safety guidelines Manual.

1

Proceed until step

2

Turn OFF the OC main power power..

3

Remove the rear touch panel cover cover by unscrewing its six nylon screws. screws. Refer to illustration 1–6.

4

Remove all connectors from the TPC Sub Board. Refer to illustration 1–6.

5

Unscrew, four screws, and remove the TPC Sub Board and install the new one in its place.

6

Connect all connectors to the TPC Sub Board. Refer to illustration 1–6.

7

Perform TPC SUB Functional check and Adjustments. (Refer to Functional Check & Adjustment, Board/Device Jumper/Switch Setting, Operator Console.)

8

Install the rear touch panel cover (be careful not to strip the nylon screws).

9

Turn ON the OC main power and verify that the touch panel is responding normally. normally.

10

END

REAR NYLON SCREWS

PURPLE/  ORANGE

TPC SUB ASSY

REAR COVER

BLUE/  WHITE BLACK/  PURPLE

CONNECTORS

REAR VIEW TPC SUB BOARD ILLUSTRATION 1–6

1–10

OPERATOR CONSOLE

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 8 REV  8

1- 6

2124012

TOUCH PANEL PANEL (LIQUID CRYSTAL CRYSTAL DISPLAY) DISPLAY)

Special Equipment 

Tie Wraps Wraps



Touch Panel (Liquid Crystal Display) END  ; Understand and follow the Safety guidelines Manual.

1

Proceed until step

2

Turn OFF the OC main power power..

3

Loosen the set nuts and remove the contrast and sound knobs from the left side of the touch panel (four knobs).

4

Remove the rear touch panel cover by unscrewing its six nylon screws. Refer to illustration 1–7.

5

Unscrew the eight front panel cover screws shown in illustration 1–7; the ninth screw is not accessible.

6

Remove all three external connectors connectors from the PNL ASSY Board. Refer to illustration 1–8

7

Remove the five external connectors from the TPC Sub; they are shown in illustration 1–8. 1–8.

8

Unscrew and remove the Panel ASSY by unscrewing the four support screws labelled ‘A’ ‘A’ in illustration 1–8.

9

Unscrew and remove the side support. Refer to illustration 1–9.

10

Unscrew the Unscrew the MIC, MIC, Emergenc Emergency y Stop Stop button, button, and adjustm adjustment ent knobs knobs from the side support support.. Refer to illustr illustraation 1–9.

11

Unscrew the four Unscrew four bottom bottom support support hex–sc hex–screws rews labelled labelled ‘B’ ‘B’ in illustrati illustration on 1–8, and remove remove the the old Touch Touch Panel Assembly.

12

Install the new Touch Touch Panel Assembly by performing steps 11 to step 3 in their reverse order. order.

13

Verify that that all buttons buttons and keys, keys, especially especially the Emergenc Emergency y OFF key, key, move smoothly smoothly.. If not adjust adjust them using using the rear the  rear brackets, illustration 1–9, or loosen and realign the front touch panel cover. cover.

14

Pivot the touch screen screen into its original position; position; ask the customer customer what angle is best or adjust the the screen to mini minimize glare. (Refer to Functional Check & Adjustment, Operator Console, OC Component, Touch Panel Tilt Angle.)

15

Perform TPC SUB Functional check and Adjustments. (Refer to Functional Check & Adjustment, Board/Device Jumper/Switch Setting, Jumper/Switch  Setting, Operator Console.)

16

Install the rear touch panel cover (be careful not to strip the nylon screw).

17

Turn ON the OC main power power and verify that the touch panel is responding normally normally..

18

END

1–11

OPERATOR CONSOLE

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 8

1- 6

2124012

TOUCH PANEL PANEL (LIQUID CRYSTAL CRYSTAL DISPLAY) DISPLAY) (CONTINUED)

REAR NYLON SCREWS

REAR COVER

FRONT COVER FRONT  COVER SCREWS

REAR VIEW TOUCH PANEL COVERS (REAR/FRONT) ILLUSTRATION 1–7

 A SCREWS (4)

TPC SUB ASSY BLUE/  WHITE BLACK/  PURPLE

CN1

CN2

CN3

PANEL ASSY

EXTERNAL CONNECTORS

B SCREWS (4)

REAR VIEW TOUCH PANEL REAR VIEW ILLUSTRATION 1–8

1–12

OPERATOR CONSOLE

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 8 REV  8

1- 6

2124012

TOUCH PANEL PANEL (LIQUID CRYSTAL CRYSTAL DISPLAY) DISPLAY) (CONTINUED)

 

SIDE SUPPORT SUPPORT

MIC ADJUSTMENT KNOBS

SIDE SCREWS (6)

EMERGENCY STOP

SIDE VIEW

REAR VIEW TOUCH PANEL REAR SIDE SUPPORT ILLUSTRATION 1–9

1–13

OPERATOR CONSOLE

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 8 REV  8

1-7

2124012

HARD DISK DRIVE

Special Equipment 

Tie Wraps Wraps



Hard Disk Drive END  ; Understand and follow the Safety guidelines Manual.

1

Proceed until step

2

Turn OFF the OC main power power..

3

Turn OFF the breaker at the PDU.

4

Remove the front OC cover.

5

Unscrew the two power power ON switch screws. Refer to illustration 1–10.

6

Carefully remove the two power power ON connectors while supporting the connecter connecter board. Refer to illustration 1–10.

7

Unscrew the two front support screws and slowly slide the hard disc drive unit forward and out of the OC.

8

Remove the two rear connectors, CN1 CN1 and CN2, from the unit. Refer to illustration 1–10.

9

Connect the connectors to the new hard disc drive, and slide it into place.

10

Screw the two front hard disc drive support screws into place.

11

Carefully connect the two power ON connectors while supporting the connecter board.

12

Install the power ON switch and screw it into place.

13

Turn ON the breaker at the PDU.

14

Turn ON the OC main power power..

15

Perform Switch and Jumper Setting of the HDD. (Refer to Functional Check & Adjustment, Board/Device Jump er/Switch Setting, er/Switch  Setting, Operator Console, Hard Disk Drive.)

16

Install the front OC cover. cover.

17

END

1–14

OPERATOR CONSOLE

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 8

1-7

2124012

HARD DISK DRIVE (CONTINUED)

PWR

POWER ON CONNECTORS

POWER ON SCREWS (2)

SUPPORT SUPPOR T SCREWS (2)

CN2

CN1

REAR VIEW

OC HARD DISC DRIVE ILLUSTRATION ILLUSTRA TION 1–10

1–15

OPERATOR CONSOLE

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 8 REV  8 1-8

2124012

FLOPPY DISK DRIVE

Special Equipment 

Tie Wraps Wraps



Floppy Disk Drive (FDD) END  ; Understand and follow the Safety guidelines Manual.

1

Proceed until step

2

Turn OFF the OC main power power..

3

Remove the the front OC cover.

4

Unscrew the four front panel screws shown in illustration 1–11. 1–11.

5

Tilt the left side of the panel slightly into the OC and then carefully pull the panel/FDD assembly out.

6

Disconnect all rear connectors and unscrew unscrew the four bottom screws. Refer to illustration 1–11. 1–11.

7

Mount the new floppy disc drive,connect all rear connectors, and screw the panel/FDD into place.

8

power.. Turn ON the OC main power

9

Perform an Image Archive test. (Retri (Retrieve eve an image from the QA Image FD and load it on the HDD. Then store the image the  image on the HDD to the FD. Make sure no error message appears appears on the status display.) display.)

10

Install the front OC cover. cover.

11

END PANEL SCREWS (4)

PWR

BOTTOM BOTT OM SCREWS (4) FLOPPY DISC DRIVE ILLUSTRATION 1–11

1–16

OPERATOR CONSOLE

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 8 REV  8

1-9

2124012

FOOT PEDAL ASSY

Special Equipment 

Foot Pedal ASSY



Tie Wraps Wraps

Refer to INSTALLA INSTALLATION TION manual, Section 3–2 or 3–3 Operator Console.

1–17

OPERATOR CONSOLE

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 8

2124012

1-10 TOUCH PANEL FRONT COVER Special Equipment 

Tie Wraps Wraps



Touch Panel Front Cover END  ; Understand and follow the Safety guidelines Manual.

1

Proceed until step

2

Turn OFF the OC main power power..

3

Loosen the set nuts and remove the contrast and sound knobs from the left side of the touch panel (four knobs).

4

Remove the rear touch panel cover by unscrewing its six nylon screws. Refer to illustration 1–12, rear cover. cover.

5

Unscrew the eight front panel cover screws shown in illustration 1–12; 1–12; the ninth screw is not accessible accessible at this time,   it will be removed later time, later..

REAR NYLON SCREWS

REAR COVER

screw 9 FRONT COVER FRONT  COVER SCREWS

REAR VIEW TOUCH PANEL COVERS (REAR/FRONT) ILLUSTRATION ILLUSTRA TION 1–12

6

Remove all three external connectors from the PNL ASSY Board. Refer to illustration 1–13

7

Remove the three external connectors connectors from the TPC Sub which lead lead to the main body of the OC; the connectors are shown are  shown in illustration 1–13.

8

Support the Support the tou touch ch panel panel assembly assembly and unscrew unscrew the four four bottom bottom suppor supportt hex–screw hex–screws, s, two two long upper and two two short lower short  lower.. Refer to illustration 1–13.

1–18

OPERATOR CONSOLE

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 8

2124012

1-10 TOUCH PANEL PANEL FRONT COVER (CONTINUED)

TPC SUB ASSY

CN1

CN2 PANEL ASSY

CN3 EXTERNAL CONNECTORS TO MAIN OPERATOR CONSOLE

 LONG SCREWS (2) SHORT SCREWS (2)

REAR VIEW TOUCH PANEL REAR VIEW ILLUSTRATION ILLUSTRA TION 1–13

9

Lay the touch panel assembly (with front cover) face down on the Operator Operator Console. Be careful not to scratch the screen.

10

Unscrew the remaining, ninth, front panel cover screw (labeled

11

Pull the touch panel assembly free from the old front panel cover and attach the new front panel cover. cover.

12

Install the touch panel assembly by performing perfor ming steps 11 to step 3 in their reverse order order..

13

Verify that that all buttons buttons and keys, keys, especially especially the the Emergency Emergency OFF key key,, move smoothly smoothly.. If not, adjust adjust them them using the rear the  rear brackets, illustration 1–9, or loosen and realign the front touch panel cover. cover.

14

Pivot the touch screen screen into its original position; position; ask the customer customer what angle is best or adjust the the screen to mini minimize glare. (Refer to Functional Functional Check & Adjustment, Adjustment, Operator Console, OC Component, Touch Panel Tilt Tilt Angle.)

15

Install the rear touch panel cover (be careful not to strip the nylon screw).

16

Turn ON the OC main power power and verify that the touch panel is responding normally normally..

17

in Illustration 1–12).

END

1–19

OPERATOR CONSOLE

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 8

2124012

1-11 REAR CONNECTOR ASSY Special Equipment 

Tie Wraps Wraps



Rear Connector Assy END  ; Understand and follow the Safety guidelines Manual.

1

Proceed until step

2

Turn OFF the OC main power power..

3

Remove Rem ove the rea rearr OC OC cover cover by uns unscre crewing wing its six six(6) (6) scr screws ews..

REAR COVER

SCREWS

OPERATOR CONSOLE REAR COVER REMOVAL ILLUSTRATION ILLUSTRA TION 1–14

1–20

OPERATOR CONSOLE

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 8 REV  8

2124012

1-11 REAR CONNECTOR ASSY (CONTINUED) 4

Disconnect two(2) cable connectors(CN12, CN13) and a ground cable from the REAR CONNECTOR board.

5

Remove the GROUND PLATE PLATE by unscrewing its two(2) screws.

BOARD COVER REAR CONNECTOR BOARD

REAR CONNECTOR BOARD GROUND CABLE

AUDIO2 CN5 (CN12) AUDIO2 CN3 (CN14)

INNER COVER

ALLEN SCREWS

GROUND PLATE

SCREWS

INNER COVER AND ## BRACKET REMOVAL ILLUSTRATION ILLUSTRA TION 1–15

1–21

OPERATOR CONSOLE

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 8 REV  8

2124012

1-11 REAR CONNECTOR ASSY (CONTINUED) 6

Remove Rem ove the rea rearr inner inner cov cover er by by unscr unscrewin ewing g its its six(6 six(6)) screw screws. s.

7

Disconnect all connectors from the REAR CONNECTOR board.

8

Remove the REAR CONNECTOR CONNECTOR board by unscrewing its four(4) screws.

9

Place the new board into position.

10

Perform step 8 through 3 in their reverse order. order.

11

END

REAR FRAME REAR CONNECTOR BOARD

REAR CONNECTOR BOARD REMOVAL ILLUSTRATION ILLUSTRA TION 1–16

1–22

OPERATOR CONSOLE

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 8 REV  8

2124012

1-12 MAGNETIC OPTICAL DISK DRIVE Special Equipment 

Tie–wrap



Disk Drive, SCSI cable, Power cable, or Ground cable END  ; Understand and follow the Safety guidelines Manual.

1

Proceed until step

2

Turn OFF the OC main power power..

3

Move the monitor onto the floor. floor.

4

Open the top cover of the MOD drive by removing screws.

5

Replace the following(s) with new one(s). 

Disk drive



Cable(s) (SCSI, Power, Power, or GND) Refer to Illustration 1–17. 

For the system installed except JAPAN, JAPAN, SCSI cable and Power cable MUST be grounded on the frame of the MOD drive chassis. This can assure EMC specifications.          

 

  

  



Í

 Í

Í

 Í

 

 





 





 Í



 





Í

 

Í

Í

 

Á

Á

 Á

Á Á

Á Á

 Á  Á

Á

Á

 Á

  



 





CABLE WIRING ILLUSTRATION 1–17 ILLUSTRATION

1–23

OPERATOR CONSOLE

 

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2124012

1-12 MAGNETIC OPTICAL DISK DRIVE (Continued) 6 7

Install the removed parts in the reverse order of removal. END

1–24

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2124012

SECTION 2 – OPERATOR CONSOLE (ZJ/ZJ–A TYPE) Note This section This  section applies to Zj Type or Zj–a Type Type OC. For Qj Type Type or Qj–b Type OC, see Section 1, OPERAT OPERATOR CONSOLE (Qj/Qj–b TYPE).

2-1

PLASMA DISPLAY UNIT

Special Equipment 

Plasma Display Unit

1

Turn the OC Power OFF.

2

Remove the MOD. Refer to section 2-2 of this manual for details.

3

Remove the two plastic covers shown in illustration 2–1 below by removing the four butterfly nuts holding each cover in cover  in place. PLASTIC COVER

FAN

PLASTIC COVER

 COVERS TO BE  REMOVED

REAR PLASTIC COVER LOCA LOCATIONS TIONS ILLUSTRATION 2–1

2–1

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2-1

2124012

PLASMA DISPLAY DISPLAY UNIT(CONTINUED)

4

Disconnect the three ground wires from the PLASMA DISPLAY DISPLAY bracket. Their locations are shown in illustration 2–2.

5

Remove all 15 cable connectors shown in illustration il lustration 2–2. GROUND CONNECTIONS

TPC ASSY TPPS ASSY FAN

INDICATE REMOVED  CONNECTORS

PLASMA DISPLAY CONNECTOR LOCATIONS ILLUSTRATION 2–2

2–2

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2-1 6

2124012

PLASMA DISPLAY DISPLAY UNIT(CONTINUED) Disconnect connector CN13(Fan power supply) from the PS DISTR ASSY Board shown in illustration illustration 2–3. Feed the connector the  connector and wire up through the OC and out the back of the plasma display area. CN13 PS DISTR ASSY

CN15

OC POWER CONNECTOR LOCATIONS LOCATIONS ILLUSTRATION 2–3

2–3

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2-1 7

2124012

PLASMA DISPLAY DISPLAY UNIT(CONTINUED) Remove the butterfly nut and pull the white button shown in illustration 2–4 , and carefully remove the assembly shown   below. shown below. BUTTERFLY BUTTERFL Y NUT

FAN WHITE BUTTON BUTTON

INDICATES REMOVED ASSEMBLY

BRACKETS TPPS ASSY REMOVAL ILLUSTRATION 2–4

2–4

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2-1

2124012

PLASMA DISPLAY DISPLAY UNIT(CONTINUED)

8

Remove the two butterfly nuts with washers and the two long studs securing the plasma display assembly unit in place. (Illustration 2–5)

9

While holding the back of the plasma display unit in place by hand, remove the support bracket and its two Allen screws (Illustration screws  (Illustration 2–5).

10

Carefully guide the plasma display unit out of the rear of the OC. SUPPORT SUPPOR T BRACKET

PLASMA DISPLAY ASSY

LONG STUDS

ALLEN SCREWS

BUTTERFLY BUTTERFL Y NUTS PLASMA DISPLAY UNIT REMOVAL ILLUSTRATION 2–5

2–5

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2-1 11

2124012

PLASMA DISPLAY DISPLAY UNIT(CONTINUED) Mount the new plasma display into position by aligning the plasma display holes with the guides (studs) as shown in illustration in  illustration 2–6.

GUIDE HOLES PLASMA DISPLAY ALIGNMENT ILLUSTRATION 2–6

12

Install the new Plasma Display Unit by performing steps 9 through 7 in their reverse order. order.

13

Perform steps 6 through 1 in their reverse order. order.

14

Perform the Calibration Procedures. Procedures. (Refer to Functional Check Check & Adjustment, Operator Console, Console, OC CompoComponent, Plasma nent,  Plasma Display.) Display.)

15

Verify that the new Plasma Display Unit is displaying the proper screen display, and that all areas of the screen respond correctly to touch commands.

2–6

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2124012

MAGNETIC OPTICAL DISK

Special Equipment 

2-2-1

Magnetic Optical Disk

Removing the MOD Drive

System Power OFF 1.

Turn the System Power OFF.

2.

Disconnect the Video cable and power cable at CRT Monitor. See Illustration 2–7.

VIDEO CABLE

POWER CABLE

CRT MONITOR CABLES ILLUSTRATION 2–7

3.

Remove the CRT monitor from OC. See Illustration 2–8.

CRT MONITOR

REMOVING CRT MONITOR ILLUSTRATION 2–8

2–7

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2124012

System Power OFF (Continued) 4.

Take the top cover at OC off by removing the four screws and four washers. See Illustration 2–9.

×

SCREW  4 WASHER ×  4

REMOVING OC TOP COVER ILLUSTRATION 2–9

5.

Turn the AC breaker OFF. See Illustration 2–10.

TM1

TM2 FILTER

AC BREAKER

AC BREAKER ILLUSTRATION 2–10 ILLUSTRATION

2–8

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2124012

Opening the OC Fan Assy and Plasma Display Rear Cover 1.

Open the plasma display rear cover by loosening loosening the four screws. See Illustration 2–11. 2–11.

2.

Remove the OC Fan Assy by loosening the four screws. See Illustration 2–11. 2–11.

SCREWS PLASMA DISPLAY REAR COVER SCREWS

OC FAN ASSY

PLASMA DISPLAY REAR COVER AND OC FAN ILLUSTRATION 2–11

Note Step 3 Step  3 (next step) is not needed to perform for MOD Drive Replacement 3.

Remove dummy box in OC nest to plasma display by removing two screws. See Illustration 2–12.

DUMMY BOX

PLASMA DISPLAY REAR COVER AND OC FAN ILLUSTRATION ILLUSTRA TION 2–12

2 9

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2124012

Removing the MOD Drive (HITACHI FULL HEIGHT) 1

Disconnect J6 cable cable (POW 1) from the MOD drive. See See Illustration 2–13.

J6 (POW1)

MOD Drive Rear View MOD Controller Rear View

OC Rear View MOD DRIVE CABLES ILLUSTRATION ILLUSTRA TION 2–13

2 10

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2124012

Removing the MOD Drive (HITACHI FULL HEIGHT) (Continued) 2

Disconnect cables (CN1, J400, JC1, JC2, J900, J900, J300) from the MOD controller. See Illustration 2–14.

CN1 (SCSI)

J300 (MOD B CABLE)

J900 (POW2) J400 (MOD C CABLE)

JC1 (MOD A2 CABLE)

JC2 (MOD A1 CABLE) MOD CONTROLLER TOP VIEW MOD CONTROLLER CABLES ILLUSTRATION ILLUSTRA TION 2–14

2 11

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2124012

Removing the MOD Drive (HITACHI FULL HEIGHT) (Continued) 3.

Disconnect the power cables (CN 32, and CN33) and FAN cables(CN14, CN15) from PS DISTR ASSY ASSY.. See Illustration 2–15.

CN20

CN21

CN22

CN23

CN24

CN25

CN26

CN27

CN28

CN29

CN30

CN31

CN32 POW 1

É

É

CN18 18 CN CN19 19 CN10 CN 10 CN CN1 11 CN CN13 13 CN14 CN CN1 15 CN16 CN1 N17 7 CN É

 É

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É

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É

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É

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É

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É

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É

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É

CN33

 É

É

 É

É

É

 É

É

É

 É

POW 2 CN34

OC REAR SIDE

OC FRONT SIDE FAN ASSY CABLES

PS DISTR PS  DISTR

OC FRONT VIEW PS DISTR ASSY ILLUSTRATION 2–15 ILLUSTRATION

2 12

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2124012

Removing the MOD Drive (HITACHI FULL HEIGHT) (Continued) 3.

2–16. Loosen the two screws and remove the MOD Drive Assy. See Illustration 2–16.

MOD DRIVE

SCREW

MOD DRIVE

PLASMA DISPLAY REAR COVER AND OC FAN ILLUSTRATION ILLUSTRA TION 2–16

2–13

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2124012

Removing the MOD Drive (HITACHI FULL HEIGHT) (Continued) 4.

Take the OD SPRT off from the OC inner side plate by removing the two screws and two washers. See Illustration 2–17.

OC INNER SIDE PLATE

OD SPRT

WASHER

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2

SCREW × 2

OD SPRT IN OC FROM REAR VIEW ILLUSTRATION ILLUSTRA TION 2–17

2–14

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2124012

Removing the MOD Drive (HITACHI FULL HEIGHT) (Continued) 5

Loosen the four screws and remove the MOD controller. See Illustration 2–18.

screws

MOD CONTROLLER TOP VIEW MOD CONTROLLER ILLUSTRATION ILLUSTRA TION 2–18

2–15

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2124012 Installing the MOD Drive

MOD Drive (Pioneer Half Height) Jumper Settings 1.

Verify that the Jumper pins are not connected at the all bits (bit1 ~ bit 8). See Illustration 2–19.

No jumper pin

1 2 3 4 5 6 7 8

MOD REAR VIEW

bit1 ~3 bit1  bit4 bit5 ~ 6 bit 7 ~ 8

: SCSI ID : Parity check : Spare : Mode changeover

MOD UNIT JUMPER SETTING ILLUSTRATION ILLUSTRA TION 2–19

2.

Verify that the SCSI terminate resisters are installed. See Illustration 2–20.

SCSI Terminate Resister

MOD BACK VIEW MOD UNIT TERMINAT TERMINATOR OR ILLUSTRATION ILLUSTRA TION 2–20

2–16

OPERATOR CONSOLE

 

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2124012

MOD Drive (Pioneer Half Height) Installation 1.

Install the MOD drive(U0050ZA) to OD BRKT(2113024) BRKT(2113024) with four screws(N9405JS). See Illustration 2–21.

SCREW N9405JS (  ×  4 )

OD BRKT 2113024 MOD DRIVE U0050ZA

MOD DRIVE & OD BRKT INSTALLATION INSTALLATION ILLUSTRATION ILLUSTRA TION 2–21

2.

Install the Blind (2113028) (2113028) to OD BRKT with two screws(N9408ZX) and two washers(N9401WB). See Illustration 2–22.

 MOD CARTRIDGE BLIND 2113028

WASHER N9401WB (  ×  2 )

SCREW N9408ZX (  ×  2 )

BLIND & OD BRKT INSTALLATION ILLUSTRATION ILLUSTRA TION 2–22

2–17

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2124012

MOD Drive (Pioneer Half Height) Installation (Continued) 3.

Install the OD SPRT (211306) to OC inner side plate with two screws(N9408ZX) and two washers(N9518TM). SPRT (211306) See Illustration See  Illustration 2–23.

OC inner side plate

OD SPRT 2113026

WASHER N9518TM (  ×  2 )

SCREW N9408ZX (  ×  2 )

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OD SPRT INSTALLA I NSTALLATION TION TO OC INNER SIDE PLATE ILLUSTRATION ILLUSTRA TION 2–23

4.

Set the OD BRKT onto the OD SPRT SPRT. See Illustration 2–24. 2–24.

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OD BRKT

OD SPRT

OD BRKT SETTING ONTO THE OD SPRT ILLUSTRATION ILLUSTRA TION 2–24 Í

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2–18

OPERATOR CONSOLE

 

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2124012

MOD Drive (Pioneer Half Height) Installation (Continued) 5.

Adjust the MOD Assy position so so that the MOD Assy fit to the MOD frame. See Illustration 2–25.

MOD Frame

MOD Assy

OC FRONT VIEW MOD ASSY POSITIONING ILLUSTRATION ILLUSTRA TION 2–25

6.

Install the OD BRKT UP (2116025) (2116025) to the OD BRKT with two screws (N9408ZX) and two washers (N9401WB). See Illustration See  Illustration 2–26.

OD BRKT UP 2116025

WASHER N9401WB

SCREW N9408ZX

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SCREW N9408ZX

WASHER N9401WB

OD BRKT

OD SPRT IN OC FROM REAR VIEW ILLUSTRATION ILLUSTRA TION 2–26 Í

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2–19

OPERATOR CONSOLE

 

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2124012

MOD Drive (Pioneer Half Height) Installation (Continued) 7.

Assemble the FAN SPRT (2113027), FAN ASSY(P9321JR), and FINGER GUARD(U0620AM) using four spacer(N9903YA) and four screws(N9901YA). See Illustration 2–27.

FAN ASSY P9321JR

FINGER GUARD U0620AM SPACER N9903YA (  ×  4 )

FAN SPRT 2113027 SCREW N9991YA (  ×  4 ) FAN ASSEMBLY ILLUSTRATION 2–27 ILLUSTRATION

8.

Install the FAN to the OD BRKT using three screws(N9408ZX), one screw(N9306ZX), and two washers(N9461WB). See Illustration 2–28.

SCREW N9408ZX

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SCREW N9306ZX Í

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FAN INSTALLATION TO THE OD BRKT ILLUSTRATION ILLUSTRA TION 2–28

SCREW N9408ZX

WASHER N9461WB( ×  2 ) SCREW N9408ZX (  ×  2 )

2–20

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2124012

MOD Drive (Pioneer Half Height) Installation (Continued) 9.

Connect the cables to MOD and PS DISTR. See Illustration 2–29~ 2–31. 2–31.

10. Save and recall data from the newly installed MOD to confirm that it is operating properly. properly.

FAN CABLE (THIS CABLE IS CONNECTED TO TO FAN FAN ASSY) MOD POW1 CABLE (P9151RM)

POWER CONNECTOR CONNECTOR

CN32

CN14

PS DISTR

MOD DRIVE

(See Illustration 5–13  on Page 5–8)

(See Illustration 5–12  on Page 5–7) CN1 SCSI CABLE FAN

(2114565) CN4

SCSI ASSY

CABLE CONNECTION BLOCK DIAGRAM ILLUSTRATION ILLUSTRA TION 2–29

Note  MOD Replacement procedure, reuse the MOD POW1 cable (P9151RM). For MOD For

2–21

OPERATOR CONSOLE

 

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2124012

MOD Drive (Pioneer Half Height) Installation (Continued)

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SCSI CABLE

MOD POW1 CABLE

CABLE CONNECTION TO THE MOD ILLUSTRATION ILLUSTRA TION 2–30 Í

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2–22

OPERATOR CONSOLE

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 8 REV  8

2124012

MOD Drive (Pioneer Half Height) Installation (Continued)

CN30 CN20

CN21

CN22

CN23

MOD POW 1 CABLE CN25

CN26

CN27

CN28

CN31

CN24

CN29

CN32 É

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CN33 É

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 É

CN18 18 CN CN19 19 CN10 CN 10 CN CN1 11 CN CN13 13 CN14 CN1 N15 5 CN16 CN17 CN  FAN  F AN ASSY CABLE

É

 É

É

 É

É

 É

É

 É

CN34

OC REAR SIDE

OC FRONT SIDE

PS DISTR

OC FRONT VIEW

PS DISTR ASSY ILLUSTRATION 2–31 ILLUSTRATION

2–23

OPERATOR CONSOLE

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 8 REV  8

2124012

MOD Drive (HITACHI) (HITACHI) Jumper Setting 1.

Set J1 at MOD Drive as Illustration 2–32.

1

2

19

20

J1

Set by maker. Do not change these jumper. JUMPER ON MOD REAR VIEW MOD DRIVE JUMPER SETTING ILLUSTRATION ILLUSTRA TION 2–32

2.

Set JP1 and JP4 at MOD controller as Illustration 2–33.

JP4

3 2 1

3 2 1

JP1

Set by maker. Do not change these jumper. JUMPER ON MOD CONTROLLER TOP VIEW

MOD CONTROLLER JUMPER SETTING ILLUSTRATION ILLUSTRA TION 2–33

2–24

OPERATOR CONSOLE

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 8 REV  8

2124012

MOD Drive (HITACHI) (HITACHI) Installation 1.

Remove the OD BRKT from OD SPRT by loosening one screw. See Illustration 2–34.

OD BRKT

OD SPRT

OD BRKT SETTING ONTO THE OD SPRT ILLUSTRATION ILLUSTRA TION 2–34

2.

Install the OD SPRT to OC inner side plate using two washer and two screws. See illustration 2–35.

OC INNER SIDE PLATE

OD SPRT P9321FE

SCREW N9408LK (  ×  2 )

OD SPRT INSTALLA I NSTALLATION TION TO OC INNER SIDE PLATE ILLUSTRATION ILLUSTRA TION 2–35

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2–25

OPERATOR CONSOLE

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 8 REV  8

2124012

MOD Drive (HITACHI) (HITACHI) Installation (Continued) 3.

Set the OD BRKT onto the OD SPRT SPRT. See Illustration 2–36. 2–36.

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OD BRKT

OD SPRT

OD BRKT SETTING ONTO THE OD SPRT ILLUSTRATION ILLUSTRA TION 2–36

4.

Adjust the MOD Assy position so that the MOD Assy fit to the MOD frame. See Illustration 2–37.

MOD Assy

OC FRONT VIEW MOD ASSY POSITIONING ILLUSTRATION ILLUSTRA TION 2–37

2–26

OPERATOR CONSOLE

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 8 REV  8

2124012

MOD Drive (HITACHI) (HITACHI) Installation (Continued) 5.

Install the OD BRKT UP (2116025) (2116025) to the OD BRKT with two screws (N9408ZX) and two washers (N9401WB). See Illustration See  Illustration 2–38.

LOOSEN THIS SCREW AND ADJUST THE OD BRKT POSITION.

WASHER N9401WB

SCREW N9408ZX

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OD BRKT

OD SPRT

OD SPRT IN OC FROM REAR VIEW ILLUSTRATION ILLUSTRA TION 2–38

6.

Install the MOD Controller as Illustration 2–39.

SCREWS

MOD CONTROLLER ASSY

MOD CONTROLLER ILLUSTRATION 2–39 ILLUSTRATION

2–27

OPERATOR CONSOLE

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 8 REV  8

2124012

MOD Drive (HITACHI) (HITACHI) Installation (Continued) 7.

Connect the cables to MOD Drive, Dr ive, MOD Controller, and PS DISTR. See Illustration 2–40 ~ 2–43.

8.

Save and recall data from the newly installed MOD to confirm that it is operating properly. properly.

UPPER FAN FAN CABLE (THIS CABLE IS CONNECTED TO FAN FAN ASSY) LOWER FAN FAN CABLE (THIS CABLE IS CONNECTED CONNECTED TO TO FAN FAN ASSY) MOD POW2 CABLE (P9151RM) MOD POW1 CABLE (P9151RM)

FAN J1 J2 MOD DRIVE

J1 (Refer to Illustration 5–23   on Page 5–14) JC2

JC1 FAN

J900 J300 MOD B CABLE MOD CONTROLLER (P9151RK) J400 MOD C CABLE (Refer to Illustration 5–24   on Page 5–14) (P9151RL) JC6 MOD A1 CABLE (P9151RP) MOD A2 CABLE

JA4

CN32 CN33 CN14 CN15

PS DISTR (Refer to Illustration 5–25   on Page 5–15)

J100

(P9151RP)

SCSI CABLE (P9511RJ) (P9511RJ)

CN4

SCSI ASSY

CABLE CONNECTION BLOCK DIAGRAM ILLUSTRATION ILLUSTRA TION 2–40

2–28

OPERATOR CONSOLE

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 8 REV  8

2124012

MOD Drive (HITACHI) (HITACHI) Installation (Continued)

JB6 (MOD A1 CABLE)

JA6 (POW1) J1(MOD C)

JA4 (MOD A2)

J2 (MOD B)

MOD DRIVE REAR VIEW MOD DRIVE CABLES ILLUSTRATION ILLUSTRA TION 2–41

J100 (SCSI) J100  (SCSI) J300 (MOD B CABLE)

J900 (POW2)

J400 (MOD C CABLE)

JC1 (MOD A2 CABLE)

JC2 (MOD A1 CABLE) MOD CONTROLER TOP TOP VIEW MOD CONTROLLER CABLES ILLUSTRATION ILLUSTRA TION 2–42

2–29

OPERATOR CONSOLE

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 8 REV  8

2124012

MOD Drive (HITACHI) (HITACHI) Installation (Continued)

CN20

CN21

CN22

CN23

CN24

CN25

CN26

CN27

CN28

CN29

CN30

CN31

CN32 MOD POW 1 CABLE

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CN33 MOD POW 2 CABLE CN18 18 CN CN19 19 CN10 CN 10 CN CN1 11 CN CN13 13 CN14 CN CN1 15 CN16 CN17 N17 CN É

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CN34

OC REAR SIDE

OC FRONT SIDE FAN ASSY CABLE

PS DISTR

OC FRONT VIEW

PS DISTR ASSY ILLUSTRATION ILLUSTRA TION 2–43

2–30

OPERATOR CONSOLE

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 8

2124012

MOD Drive (HITACHI HALF HEIGHT) Jumper Settings

Normal Jumper Setting

SCSI CONNECTOR CONNECTOR

1

19

2

20

SCSI Address 20 SCSI Address 21 SCSI Address 22 WRITE CACHE SETTING WRITE WITH VERIFY DISABLE REMOVABLE REMOV ABLE MEDIA REPORT REPORT DEVICE TYPE REPORT REPORT TERMINATOR TERMINAT OR POWER TERMINATOR TERMINAT OR POWER TERMINATOR TERMINAT OR (FOR SINGLE–END SCSI)

2–31

OPERATOR CONSOLE

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 8

2124012

MOD Drive (HITACHI HALF HEIGHT) Jumper Settings

JP1 JP2 JP3

2

16

1

15

JP1

JP2

2

16

1

15

2

16

1

15

JP3

2–32

OPERATOR CONSOLE

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 8

2124012

MOD Drive (HITACHI (HITACHI HALF HEIGHT) Installation 1.

Remove the one screw/washer and upper suppert from a new half–height MOD Assy. Assy.

Screw/washer

Upper support

Half–Height MOD

2.

Install the new MOD Assy (half height) to the OC, and fix it using 2 screws/wasers. Tighen the screws securely.

Half–Height MOD

Screws/washers

2–33

OPERATOR CONSOLE

 

MEDICAL SYSTEMS GE MEDICAL SYSTEMS

CT PROSPEED SERIES COMPONENT REPLACEMENT

REV 8

2124012

MOD Drive (HITACHI (HITACHI HALF HEIGHT) Installation (Continued) 3.

Install the upper support to the OC frame using one screw/washer, then fix the support using one washer/screw (hex head) (hex  head) to the MOD.

4.

Verify that the fan filter is installed with its arrow mark facing to the fan.

Screw (hex head) /washer (Install them next.)

Screw/washer (Install them first.)

FAN FILTER FILTER (Arrow mark)

5.

Remove the mesh cover under the MOD, then disconnect the SCSI cable from the board.

Mesh cover

SCSI cable (50 pins)

2–34

OPERATOR CONSOLE

 

MEDICAL SYSTEMS GE MEDICAL SYSTEMS

CT PROSPEED SERIES COMPONENT REPLACEMENT

REV 8

2124012

MOD Drive (HITACHI (HITACHI HALF HEIGHT) Installation (Continued) 6.

Connect the followings to the new half–height MOD. 

JA6 (CN101) MOD Power



SCSI cable (50 pins)

Fan power cable

SCSI cable (50 pins) JA6 (CN101) MOD Power

2–35

OPERATOR CONSOLE

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 8

2124012

MOD Drive (HITACHI (HITACHI HALF HEIGHT) Installation (Continued) 7.

Connect the fan power cable to the CN15 of the PS DISTR.

CN20

CN21

CN22

CN23

CN24

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CN27

CN28

CN29

CN30

CN31

CN32

CN33 CN18 18 CN CN19 19 CN10 CN 10 CN CN1 11 CN CN13 13 CN14 CN15 CN16 CN1 N17 7 CN CN34

 É

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OC REAR SIDE

OC FRONT SIDE  FAN  F AN ASSY CABLE

PS DISTR

OC FRONT VIEW

2–36

OPERATOR CONSOLE

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 8

2124012

MOD Drive (HITACHI (HITACHI HALF HEIGHT) Installation (Continued)

FAN CABLE (THIS CABLE IS CONNECTED TO TO FAN FAN ASSY)

CN15

MOD POWER CABLE (REUSE (REUSE)) POWER CONNECTOR CONNECTOR

CN32

PS DISTR

MOD DRIVE

SCSI SCSI CABLE (REUSE REUSE))

FAN CN4

SCSI ASSY

8.

Adjust the MOD Assy position so that the MOD Assy fit to the MOD frame.

MOD Frame

MOD Assy

OC FRONT VIEW 9.

Save and recall data from the newly installed MOD to confirm that it is operating properly. properly.

2–37

OPERATOR CONSOLE

 

MEDICAL SYSTEMS GE MEDICAL SYSTEMS blank

CT PROSPEED SERIES COMPONENT REPLACEMENT 2124012

2–38

OPERATOR CONSOLE

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 14

2124012

TABLE/GANTRY COMPONENT REPLACEMENT

TABLE OF TABLE  OF CONTENTS SECTION

PAGE

SECTION 1 – GANTRY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–1

SLIP RING and SLIP RING BRUSH are described in  in ‘SLIP RING MAINTENANCE MANUAL : 2154943’.  2154943’. 

1-1 FRONT COVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 BACK COVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 TILT POTENTIOMETER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 TILT SOLENOID VALVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 HYDRAULIC CYLINDER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 GANTRY TILT OIL PUMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 STRR (STRR2), TMR BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8 SERVO AMPLIFIER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9 GANTRY PUMP (FILLING) LUBRICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10 SLIP RING YEARLY MAIN BEARING GREASE–UP . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11 CO COLLIMATOR FILTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12 APERTURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13 DTRE ASSY ((F FOR GANTRY 2137XXX, 2123XXX, 2117XXX ONLY) . . . . . . . . . . . . 1-14 TGP BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15 STRS BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16 SERVO MOTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17 REPLACEMENT FROM QJ TUBE TO NP TUBE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18 AXIAL DRIVE BELT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19 GANTRY ROTATION COUNTER (2310012) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1 –1 1 –4 1 –5 1 – 14 1 – 18 1 – 25 1–29 1–31 1 – 33 1–34 1 – 38 1 – 40 1–41 1 – 47 1 – 48 1 – 49 1–57 1 – 66 1 – 70

i

TABLE / GANTRY

 

GE MEDICAL SYSTEMS

CT PROSPEED SERIES COMPONENT REPLACEMENT

REV 14

2124012

TABLE OF CONTENTS (Continued) SECTION

PAGE

SECTION 2 – TABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–1

2-1 2-2 2-3 2-4 2-5 2-6 2-7 2-8 2-9 2-10 2-11 2-12 2-13

BOTTOM COVERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SIDE COVERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CRADLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CRADLE POTENTIOMETER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HEIGHT POTENTIOMETER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TABLE SOLENOID VALVE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PRESSURE RELIEF (SPEED CONTROL) VALV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TABLE HYDRAULIC CYLINDER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TABLE UPPER STRUCTURAL FRAME AND SUPPORT . . . . . . . . . . . . . . . . . . . . . . . TABLE PUMP SAFETY FUSE (FOR TABLE P9185AB/AF/AG ONLY) . . . . . . . . . . . . TABLE PUMP (FILLING) LUBRICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TABLE OIL PUMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TABLE PUMP CAPACITOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 –1 2 –3 2 –5 2 –6 2 –9 2–13 2 – 23 2–24 2 – 33 2–36 2–38 2–43 2 – 48

2-14

HEAD HOLDER RUBBER SHEET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 – 50

ii

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

2124012

SECTION 1 – GANTRY

SLIP RING and SLIP RING BRUSH are described in  in ‘SLIP RING MAINTENANCE MANUAL : 2154943’.  2154943’.  NOTE Remove the right side cover(viewed from the table) before removing removing the other covers. If the right side cover side  cover is removed the side safety switch is triggered and the Gantry can not rotate. To allow the Gantry to rotate, attach the bracket as shown in illustration 1–1. NOTE Always disengage the bracket before returning the Right Cover. Cover.

SAFETY SWITCHES (3)

FRONT VIEW FROM TABLE BRACKET

SAFETY SWITCHES ILLUSTRATION ILLUSTRA TION 1–1

1- 1

FRONT CO COVER

Special Equipment  Dolly  Support Studs

1–1

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12 1-111-1 1

2124012 Remo Re mova vall of of Fro Front nt Co Cove verr END  ; Understand and follow the Safety Guidelines Manual.

1

Proceed until step

2

Set the Gantry to the 0 position and lower the table to its lowest position.

3

Switch OFF the the OC power power and and the the “Rotate”, “Rotate”, “XG” and and ”Table/ ”Table/Tilt Tilt”” switches switches at the the Gantry Gantry rear rear base. base.

4

Remove the two screws that fasten each gantry side cover to the frame and remove the left and right side covers.

5

Screw the two two support support studs into each each side side of the gantry gantry front cover cover.. Attac Attach h the servi service ce angles angles to to the suppo support rt studs. (2 Studs per side)

6

Remove the two long screws (Indicated by a (2 screws per side)

7

Slightly disengage the Gantry front cover and disconnect the Display, Emergency SW and Gantry Operating SW connections from the Gantry front cover.

8

Connect the Gantry Operating SW and the Display Display connectors to the inner Gantry Display Display board. Connect the the Emergency SW connector to the inner Emergency SW (the brown connector beside the Gantry Panel SW). Refer to illustration 1–2.

9

Suppor Sup portt one side side of the the front front cover cover,, lift,a lift,and nd pivot pivot it as shown shown in in illustr illustrati ation on 1–3. 1–3.

10

on the Gantry) which fasten the front cover to the gantry frame.

END

SERVICE SW

DISPLAY CONNECTOR

OPERATING SW   CONNECTOR

EMERGENCY SW CONNECTOR EMERGENCY SW SERVICE SW CONNECTION SERVICE SW ILLUSTRATION ILLUSTRA TION 1–2

1–2

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12 1-111-2 2

2124012 Inst In stal allat lation ion of Fr Fron ontt Co Cove verr

 GANTR  GANTRY Y COVER REMOVAL TION 1–3 ILLUSTRATION ILLUSTRA

END  ; Understand and follow the Safety Guidelines Manual.

1

Proceed until step

2

Set the Gantry to the 0 position and lower the table to its lowest position.

3

Switch OFF the the OC power power and and the the “Rotate”, “Rotate”, “XG” and and ”Table/ ”Table/Tilt Tilt”” switches switches on the Gantr Gantry y rear rear base. base.

4

Perfor Per form m Step Step 9 thro through ugh Step Step 4 of sect section ion1–1 1–1–1 –1 in the their ir rever reverse se order order..

5

END

1–3

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

1- 2

2124012

BACK COVER

Special Equipment

 Dolly  Support Studs

1-212-1 1

Remo Re mova vall of of Rea Rearr Cov Cover er END  ; Understand and follow the Safety Guidelines Manual.

1

Proceed until step

2

Set the Gantry to the 0 position.

3

Switch OFF the the OC power power and and the the “Rotate”, “Rotate”, “XG” and and ”Table/ ”Table/Tilt Tilt”” switches switches on the Gantr Gantry y rear rear base. base.

4

Remove the two screws that fasten each gantry side cover to the frame and remove the left and right side covers.

5

Screw Scr ew the the two two suppor supportt studs studs into into eac each h side side of the the gant gantry ry rear rear cov cover er..

6

Attach Att ach the ser servic vice e ang angles les to the sup suppor portt stu studs ds (2 per sid side). e).

7

Remove the two long long screws (Indicated by a on both sides.

8

Slig Sl ight htly ly di dise seng ngag age e the the Ba Back ck Co Cove verr.

9

Discon Dis connec nectt the MIC MIC and and X–RA X–RAY ON LED conn connect ectors ors,, then then remove remove the the rear rear cover cover..

on the Gantry) which fasten the rear rear cover cover to the gantry frame

END

10

1-212-2 2 1

Inst In stal allat lation ion of Rea Rearr Cov Cover er Proceed until step END  ; Understand and follow the Safety Guidelines Manual.

2

Set the Gantry to the 0 position.

3

Switch OFF the the OC power power and and the the “Rotate”, “Rotate”, “XG” and and ”Table/ ”Table/Tilt Tilt”” switches switches on the Gantr Gantry y rear rear base. base.

4

Perfor Per form m Step Step 9 thro through ugh Step Step 3 of sect section ion 1–2– 1–2–1 1 in thei theirr rever reverse se orde orderr.

5

END

1–4

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

1-3 13

2124012

TIL TI LT POT POTEN ENTI TIOM OMET ETER ER

Special Equipment  Tilt Potentiometer  DVM (Digital Volt Volt Meter) Meter)  Tiewraps  Dolly/Support Studs END  ; Understand and follow the Safety Guidelines Manual.

1

Proceed until step

2

Set the Gantry to the 0 position.

3

Switch OFF the ”Rota ”Rotate”, te”, ”XG”, and “T “Table/T able/Tilt” ilt” switch switches es on the rear base of the Gantr Gantry y.

4

Remo Re move ve th the e Fr Fron ontt co cove verr of th the e Ga Gant ntry ry..

5

Swit Sw itch ch ON ON the the “Tab “Table le/T /Til ilt” t” swi switc tch. h.

6

Tilt the Gantry to the FWD 25 +0.5 +0.5  position; use a clinometer placed under the collimator to measure the angle.

7

Swit Sw itch ch OF OFF F th the e “T “Tab able le/T /Tilt ilt”” sw swit itch ch..

8

Tur urn n OF OFF F th the e Se Serv rvo o Am Amp p br brea eake kerr.

9

Disc Di scon onne nect ct co conn nnec ecto torr CN1 CN11 1 fr from om th the e TG TGP P Bo Boar ard. d.

10

Remove Remov e the tilt potent potentiomet iometer er cover, cover, 3 screws. screws. The potentiom potentiometer’s eter’s locatio location n is shown in in illustr illustration ation 1–4. 1–4.

DISPLAY

TILT POTENTIOMETER TILT  POTENTIOMETER

TILT TIL T POTENTIOMETER LOCATION LOCATION ILLUSTRATION ILLUSTRA TION 1–4

1–5

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

1-3 13

2124012

TILT TIL T POTENTI POTENTIOME OMETE TER R (Conti (Continu nued ed))

ANGLE BRACKET TABLE SIDE TABLE  SIDE ARM  ARM TILT TIL T POTENTIOMETER

COUPLING COUPLING SCREWS A

COUPLING SCREWS B

SET NUT

1

2

3 4

CN11

MEASURE RESISTANCE BETWEEN PIN 2 AND PIN 3 TILT POTENTIOMETER TILT ILLUSTRATION ILLUSTRA TION 1–5

11

Cut the the tie wrap wrap securing securing the wires wires leading leading to the Tilt Tilt Potentio Potentiometer meter..

12

Loosen Loose n the two coupling coupling screws screws on on the potentiom potentiometer eter side side labeled labeled ”B” in illustra illustration tion 1–5. 1–5.

13

Loosen the set nut and then remove the Tilt Potentiometer Assy together with its nuts, wires, and washer. (The wires must be fed down from the TGP board.)

14

Install the new Tilt Potentiometer Assy to the angle bracket using the nuts and washers from the t he old Tilt PotenPotentiometer.

1–6

TABLE / GANTRY

 

GE MEDICAL SYSTEMS

CT PROSPEED SERIES COMPONENT REPLACEMENT

REV 12

1-3 13

2124012

TILT TIL T POTENTI POTENTIOME OMETE TER R (Conti (Continu nued ed))

15

Fix the the two coupling coupling screws labeled ”B”, then then loosen loosen the the two coupli coupling ng screws screws labeled labeled ”A” in illustrati illustration on 1–5.

16

Attach a DVM between Attach between Pin 2 and and Pin 3 of connect connector or CN11 CN11 and measure measure the the total total resistance. resistance. Rotate the coupling until the DVM value is 250    30 30  . Tighten the two ”A” coupling screws.

17

Attach a DVM between Pin 2 and Pin 3 of connector CN11 CN11 again and measure the total resistance. If the resisresis tance is not 250   30 30   then loosen the coupling screws and repeat step 16

18

Feed the new new CN11 CN11 connector connector up the outboar outboard d side of the Gantry Gantry frame frame and connect connect it to the the TGP Board. Board.

19

Switch Swi tch ON the the “T “Table able/T /Tilt ilt”” switc switches hes..

20

Tilt th the e Gant Gantry ry fro from m the the FWD FWD 25 25 25 position, and verify that Tilt POT rotates smoothly.  to the BWD 25

21

Install Inst all the the Tilt Tilt Potent Potentiomet iometer er cover cover with its 3 screw screws. s.

22

Tur urn n ON the the Ser Servo vo Amp Amp bre break aker er..

23

Perform Perfo rm T0, T0, TG TG Adjustme Adjustment. nt. (Refe (Referr to Funct Functional ional Check & Adjustmen Adjustment, t, G Gantry antry, Tilt Operation, Tilt Angle.)

24

END

1–7

TABLE / GANTRY

 

GE MEDICAL SYSTEMS

CT PROSPEED SERIES COMPONENT REPLACEMENT

REV 12

1-3 13

2124012

TILT TIL T POTENTI POTENTIOME OMETE TER R (Conti (Continu nued ed))

 Potentiometer Wire Replacement 1

Remo Re move ve th the e Gan Gantr try y sid side e and and fr fron ontt cov cover ers. s.

2

Tur urn n ON the the Con Contr trol ol Swi Switc tch h on th the e rear rear Gan Gantr try y base base..

3

Tur urn n ON ON the the Se Serv rvice ice Swi Switc tch h on on the the SUB Bo Boar ard. d.

4

Rota Ro tate te the the Gan Gantr try y by han hand d to 270 270 deg degre ree e tube tube pos posit itio ion. n.

5

Ins nser ertt the the az azim imut uth h loc lock k pin pin..

6

Tur urn n OFF OFF the Se Serv rvic ice e Swi Switc tch. h.

7

Remove Rem ove the the Tilt Tilt Potent Potentiom iomete eterr cover cover at left left inner inner side side of the the by remov removing ing 3 screw screws. s.

TILT POTENTIOMETER COVER TILT POTENTIOMETER

1–8

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

1-3 13

2124012

TILT TIL T POTENTI POTENTIOME OMETE TER R (Conti (Continu nued ed))

 Potentiometer Wire Replacement 8

Remove Rem ove the the potent potentiom iomete eterr unit from from the the suppor supportt bracke brackett by removin removing g two screw screws: s:

SUPPORT BRACKET

SCREWS

9

Loosen Loose n four Allen screws screws on the the coupling, coupling, slide the coupling coupling to the the right, right, then then remove remove the pulley: pulley:

ALLEN SCREWS

PULLEY

10

Remove Rem ove the old wir wire e from from the pull pulley ey..

11

Cut the the tilt potent potentiomete iometerr wire (new) to the lengt length h of 1.8 1.8 meter meter..

1–9

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

1-3 13

2124012

TILT TIL T POTENTI POTENTIOME OMETE TER R (Conti (Continu nued ed))

 Potentiometer Wire Replacement 12

Pass the wire wire through through the pulley pulley, so that the the both sides sides have same same length of wire, wire, as shown shown in the illustrat illustration ion below.

SAME LENGTH SAME  LENGTH

13

Wind the potenti potentiomete ometerr wire at the right right side of the the pulley, pulley, 4.5 turns turns clockwise clockwise viewed viewed from the right. right.

TURN THIS PULLEY 4.5 TURNS CW.

14

Wind the potenti potentiomete ometerr wire at the the left side of the the pulley, pulley, 4.5 turns turns counterclock counterclockwise wise viewed viewed from the the right.

TURN THIS PULLEY 4.5 TURNS CCW.

1–10

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

1-3 13

2124012

TILT TIL T POTENTI POTENTIOME OMETE TER R (Conti (Continu nued ed))

 Potentiometer Wire Replacement 15

Attach Attac h an adhesive adhesive tape in location location opposite opposite to the the wire passing passing holes, in in order to avoid avoid loosening loosening the wire. wire. WIRE PASSING HOLE

ADHESIVE TAPE

16

Install the pulley to the potentiometer unit, taking care not to loosen the wire. The adhesive tape location tape location of the pulley must be placed at the bottom.

17

Before tightening the coupling Allen screws, rotate the potentiometer shaft fully clockwise, then five turns councounterclockwise. This assures that the potentiometer rotation is at the middle.

18

Install Inst all the potenti potentiomete ometerr unit to the support support bracket bracket,, in the upper upper most most position. position.

19

Pass the wire wire through through the holes holes at the Gantry Gantry frame, frame, always taking taking care care not to rotate rotate the pulley pulley..

HOLE

HOLE

MOST UPPER POSITION

1–11

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GE MEDICAL SYSTEMS REV 12

1-3 13

CT PROSPEED SERIES COMPONENT REPLACEMENT 2124012

TILT TIL T POTENTI POTENTIOME OMETE TER R (Conti (Continu nued ed))

 Potentiometer Wire Replacement 20

Pass Pa ss the the wir wire e thro throug ugh h the the washe washer: r:

21

Pass Pas s the wire wire throu through gh the the pipe twice twice,, making making one one turn: turn:

22

Position the pipe against the Gantry frame wire hole securing by the finger, assure that the wire is taut, then se cure the pipe by finger and tighten the wire pulling it firmly.

23

Repeat the steps steps 19 throu through gh 22 for for the other side of Gantr Gantry y frame frame wire hole. hole.

1–12

TABLE / GANTRY

 

GE MEDICAL SYSTEMS REV 12

1-3 13

CT PROSPEED SERIES COMPONENT REPLACEMENT 2124012

TILT TIL T POTENTI POTENTIOME OMETE TER R (Conti (Continu nued ed))

 Potentiometer Wire Replacement 24

Push down the the potentiome potentiometer ter unit to to make the wires wires more taut, taut, then then tighten tighten the unit securing securing screws: screws:

25

Remo Re move ve th the e adh adhes esiv ive e tap tape. e.

26

Instal Ins talll the the pot potent entiom iomete eterr cove coverr.

27

Remo Re move ve th the e azim azimut uth h loc lock k pin pin..

28

Perform Perfo rm T0, TG adjustment adjustment.. (Refer (Refer to Functio Functional nal Check Check & Adjustme Adjustment, nt, Ga Gantry ntry, Tilt Operation, Tilt Angle.)

29

Instal Ins talll the fron frontt and side side cove covers rs of the Gant Gantry ry..

1–13

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

1-4 14

2124012

TILT TIL T SOL SOLEN ENOID OID VAL ALVE VE

Special Equipment

 Tilt Solenoid Valve Assy Variable iable Jig/Shipping Lock  Var  Sealing Tape (PTFE)  Dolly/Support Studs END  ; Understand and follow the Safety Guidelines Manual.

1

Proceed until step

2

Set the Gantry to the 0 position and lower the table to the lowest position.

3

Power Pow er OFF the ”Ro ”Rotat tate” e” and ”XG ”XG”” swit switche ches s at at the the Gant Gantry ry rea rearr base base..

4

Remo Re move ve th the e Gan Gantr try y Fr Fron ontt an and d bo both th si side de co cove vers rs..

5

Tur urn n OFF OFF th the e ser servo vo am amp p bre break aker er..

6

Turn Tu rn ON the Ser Service vice swit switch ch locat located ed on the lef leftt side side of the TGP boar board. d.

7

Rotate Rotat e the Gantr Gantry y by hand hand (CW) (CW) to to the posit position ion shown shown in illustr illustration ation 1–6 and and insert insert the the Azimuth Azimuth lock pin. pin.

8

Tur urn n OFF OFF the the serv service ice sw swit itch ch bes besid ide e the the TGP TGP boar board. d.

9

Lock the the Gantry Gantry from tiltin tilting g using using the shippi shipping ng locks locks (zero (zero degree degree tilt) tilt).. If the the cylinder cylinders s are not fully fully functi functional onal proceed according to the following trouble situation chart.

1–14

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

1-4

2124012

TILT TIL T SOLEN SOLENOID OID VAL ALVE VE (Con (Contin tinued ued))

A. FWD Tilt Tilt not possible (BWD Tilt Tilt possible) Current Position

Perform procedure

Tilt Angle : 0 ~ FWD 25 25

Tilt BWD to 0 0  tilt and lock using the shipping locks (both sides).

Tilt Angle : 0 ~ BWD 9.5 9.5 Tilt Angle : BWD 9.5 9.5  ~   BWD 25

Perform tilt lock using the variable jig as shown in illustration A (both sides). Perform the following procedures for both sides: a. Raise the Table to the upper limit. b. Tilt BWD to 25 25. c. Set the DIP SW T3 (location 3S) to the up position on the TGP board.   (This setting disables the tilt interlock function.) d. Tilt the Gantry until it reaches the BWD mechanical stopper to be locked.   Perform this carefully, since the interlock function will not work.

B. BWD Tilt Tilt not possible (FWD Tilt Tilt possible) Current Position Tilt Angle : FWD 25 25~ BWD 9.5 9.5 Tilt Angle : BWD 9.5 9.5  ~   BWD 25

Perform procedure Perform tilt lock using the variable jig as shown in illustration B (both sides).

Tilt FWD to within BWD 9.5 9.5, and then perform tilt lock using the variable jig as shown in illustration B (both sides).

VARIABLE JIG

ILLUSTRATION ILLUSTRA TION A

VARIABLE JIG

ILLUSTRATION ILLUSTRA TION B

10

Power OFF the the ”Table/T ”Table/Tilt” ilt” switch switch at Gantry Gantry rear base.

11

Remove Remov e the botto bottom m screen screen from from the the Gantry( Gantry(Six Six screws) screws).. Refer to illustra illustration tion 1–6. 1–6.

12

Remove Rem ove the the solen solenoid oid valv valve e cover cover,, two scr screws ews..

1–15

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

1-4

2124012

TILT TIL T SOLEN SOLENOID OID VAL ALVE VE (Con (Contin tinued ued))

13

Remove Remov e the four four A screws screws and the soleno solenoid id valve valve box from from the the Gantry Gantry front front base. base. (Illu (Illustrat stration ion 1–6) 1–6)

14

Remove Remov e the the hoses, hoses, adapte adapterr and and joint joint from from the the solenoid solenoid valve. (Illu (Illustrat stration ion 1–7) 1–7)

SOLENOID VALVE VALVE ASSY

A

SOLENOID VALVE VALVE BOX

A

A A BOTTOM SCREEN SOLENOID VAL VALVE VE

B B SOLENOID VALVE VALVE ILLUSTRATION 1–6 ILLUSTRATION

15

Remove Remov e the two two B screws screws and the solenoid solenoid valve from from the the solenoid solenoid valve valve box. box. (Illus (Illustrat tration ion 1–6) 1–6)

16

Unscrew Unscr ew the the wires wires leading leading from the old old tilt tilt solenoid solenoid valve.

17

Clos Cl ose e all all fo four ur so solen lenoi oid d val valve ves s

by tu turn rnin ing g the them m full fully y in in the the S dir direc ecti tion on (C (CW) W)..

1–16

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

1-4

2124012

TILT TIL T SOLEN SOLENOID OID VAL ALVE VE (Con (Contin tinued ued)) (A)

(B) TO RIGHT CYLINDER

TO LEFT CYLINDER

LEFT

RIGHT

S

JOINT F (R)

BWD F

S

FROM THE PUMP F

S FWD F

ADAPTER S (P) TO THE PUMP

SOLENOID VAL VALVE VE

SOLENOID VAL VALVE VE CONNECTIONS ILLUSTRATION ILLUSTRA TION 1–7

18

Transfer Tra nsfer the the hose joints joints from the the old tilt solenoid solenoid valve valve to the new tilt tilt solenoid solenoid valve using using sealing tape. tape.

Note Put sealing Put  sealing tape onto the PT screw only. only. When applying sealing tape, wrap the tape about one and a half times in the opposite direction of the thread.

PF SCREW

PT SCREW

19

Clos Cl ose e all all fou fourr new new so sole leno noid id va valv lves es

20

Attach Attac h the new solenoi solenoid d valve by perfor performing ming steps steps 16 to 11 11 in their revers reverse e order. order.

21

Power ON the the ”Table/T ”Table/Tilt” ilt” switch at the the Gantry Gantry base.

22

Verify Ve rify the the operation operation of of the tilt tilt solenoid solenoid valve valve using using the FWD and BWD buttons buttons..

23

Remo Re move ve th the e shi shipp pping ing lo lock cks. s.

24

Tur urn n ON the the ser servo vo amp amp bre break aker er..

25

Adjust the tilt speed. (Refe (Referr to to Function Functional al Check Check & Adjustme Adjustment, nt, Gantry, Tilt Operation, Tilt Speed.)

26

Inst In stall all th the e Gan Gantr try y cov cover ers. s.

27

END

by tu turn rnin ing g the them m full fully y in in the the S dir direc ecti tion on (C (CW) W)..

1–17

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12 1-5 15

2124012

HYDR HY DRAU AULI LIC C CY CYLI LIND NDER ER

Special Equipment  Hydraulic Cylinder Assy  Oil (Z9807QD)  Receptacle (refer to Step 14 and illustration 1–11)  Sealing Tape (PTFE) Variable iable Jig/Shipping Lock  Var  Tie wraps  Dolly/Shipping Studs



CRASH HAZARD! DO NOT ADJUST THE AT THROTTLE DIALS OF THE SOLENOID VAL VALVE VE OR REPLACE BOTH CYLINDERS TOGETHER THE SAME TIME. END  ; Understand and follow follow the Safety Guidelines Manual.

1

Proceed until step

2

Move the Gantry to the 0

3

Power Pow er OFF the ”Ro ”Rotat tate”a e”and nd ”XG ”XG”” swit switche ches s on on the the rea rearr Gant Gantry ry bas base. e.

4

Remove Rem ove all Gan Gantry try cov covers ers(Fr (Front ont,, rear rear and bot both h side sides). s).

5

Swit Sw itch ch OF OFF F the the Se Serv rvo o Amp Amp br brea eake kerr.

6

Move Mo ve the the tab table le to to appr approx oxim imat ately ely th the e –150 –150 mm mm posi positi tion on..

position and lower the table to its lowest position.

BRACKET

ROD END

CYLINDER

SHIPPING LOCK SHIPPING LOCK PIVOT

TILT TIL T CYLINDER LOCATION LOCATION ILLUSTRATION ILLUSTRA TION 1–8

1–18

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

1-5 15 7

2124012

HYDRA HYD RAUL ULIC IC CYLI CYLINDE NDER R (Cont (Contin inue ued) d) Lock the Gantry from tilting using the shipping locks, Illustration 1–8. If the cylinders are not fully functional propro ceed according to the following trouble situation chart.

A. FWD Tilt Tilt not possible possible (BWD Tilt possible) Current Position

Perform procedure

Tilt An Ang gle : 0 ~ FWD 25

Tilt the Gantry BWD to 0 and lock it using the shipping locks (both sides).

Tilt Angle : 0 ~ BWD 25

Lock the Gantry tilt using the variable jig at both sides as shown in the Illustration A.

B. BWD Tilt not possible Current Position Tilt Angle : 0 ~ FWD 25 Tilt Angle : 0 ~ BWD 25

Perform procedure Lock the Gantry tilt using the variable jig at both sides as shown in the Illustration A. to 0 Tilt the Gantry 0 if possible, then lock the Gantry tilt using the variable jig at both sides as shown in the Illustration B.

VARIABLE JIG

ILLUSTRATION ILLUSTRA TION A

VARIABLE JIG

ILLUSTRATION ILLUSTRA TION B

8

Power Pow er OFF the ”T ”Table able/T /Tilt ilt”” swit switch ch at the Gan Gantry try rea rearr base base..

9

Cut the the three three tie tie wraps wraps holding holding the the oil hoses to the the inboard inboard (inside (inside)) side of the the Gantry Gantry side side frame. frame.

10

Remove the double nuts holding the cylinder in place at both ends (illustration 1–9) and pull free the Cylinder assembly.

1–19

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

1-5 15

2124012

HYDRA HYD RAUL ULIC IC CYLI CYLINDE NDER R (Cont (Contin inue ued) d) SUPPORT BRACKET

DOUBLE NUT DOUBLE  NUT

HOSE NUT

DOUBLE NUT

HOSE NUT TILT TIL T CYLINDER NUT LOCATIONS LOCATIONS ILLUSTRATION ILLUSTRA TION 1–9

1–20

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

1-5 15 11

2124012

HYDRA HYD RAUL ULIC IC CYL CYLIN INDER DER (C (Con onti tinue nued) d) Remove Remov e the oil input input and output output hoses hoses by unscrew unscrewing ing the hose hose nuts shown shown in illustra illustration tion 1–9. 1–9. Note When the oil keep the by input inlet) hose vertical so that no oil drips out of air (bottom which will enter the new cylinder during reinstallation. it.  Anyremoving oil which drips outhoses, will be replaced be replaced

12

Remove the two elbow Remove elbow joints, joints, one one from each end, end, and wrap wrap sealing sealing tape around the ends which which are screwe screwed d into the cylinder. These elbows will be attached to the new cylinder later. later. Note When wrapping sealing tape around the the elbow joints, the tape should be wrapped about one and a half times in the opposite direction of the threads.

13

Remove Remov e the rod end from from the old cylinde cylinderr and attach attach it to the the new cylinder cylinder as as shown in illustr illustration ation 1–10. 1–10.

12 <

< 14

ROD END

FIX NUT HYDRAULIC CYLINDER ROD END ILLUSTRATION ILLUSTRA TION 1–10

14

Fill a clean receptacle with enough Oil (Z9807QD) to cover the end of the cylinder as shown in illustration 1–11. 1–11. Place the Place  the oil input end of the cylinder assembly into the oil and pull the rod end so as to suck oil into the cylinder. cylinder. Stop when Stop  when the length of the cylinder assembly is about 4 cm longer than the distance needed to reach from the holding pivot to the support bracket.

15

Turn the cylinder Turn cylinder around around so that that the input end end is pointing pointing skyward skyward and wait 1~2 1~2 minutes minutes for any any air to settle settle to the top.

16

Push the rod end into the cylinder while holding the cylinder firmly. firmly. A mixture of air air and oil should should come out of of the skyward hole. Continue until only oil comes out and all air is removed from the cylinder.

1–21

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

1-5 15

2124012

HYDRA HYD RAUL ULIC IC CYL CYLIN INDER DER (C (Con onti tinue nued) d)

AIR HOLE AIR  HOLE

É

É

É

É

É

É

É

É

É

É

É

É

É

É

É

É

É

É

OIL

TILT TIL T CYLINDER OIL FILLING PROCEDURE ILLUSTRATION ILLUSTRA TION 1–11 1–11

17

Attach Attac h the elbow elbow joints joints removed removed from from the the old cylinder cylinder to the new cylinder cylinder..

18

Attach Att ach the two two oil oil hoses hoses to the new new cylin cylinder der..

19

Rest the the cylinder on on the pivot support support and and open the air hole hole by rotating rotating it CCW approxim approximately ately three three times. times. Note Do not unscrew the air hole screw. Simply turning it approximately three times is sufficient for it to allow air or oil to escape.

20

Push down on the rod end until the cylinder assembly fits neatly neatly into the bracket and the pivot. A firm force will be required to push the rod end down and force the excess oil to drip out of the air hole.

21

Close Clo se the the air hole hole by by rotati rotating ng its its plug plug CW fully fully..

22

Connectt all Connec all oil hoses to the the Cylinder Cylinder.. (see (see illustrat illustration1–9 ion1–9). ).

23

Perfor Per form m air air bleed bleeding ing.. Ref Refer er to to 1-5-1 1-5-1 Air Blee Bleedin ding. g.

24

Attach the cylinder assembly and secure it with the double nuts at both the pivot and the bracket ends (see illus tration 1–8 and 1–9).

25

Fasten Faste n the oil hoses hoses to the the inboard inboard (inside) (inside) side side of the Gantry Gantry side side base with with tie wraps wraps (3). (3).

1–22

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CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

1-5 15

2124012

HYDRA HYD RAUL ULIC IC CYL CYLIN INDER DER (C (Con onti tinue nued) d)

26

Tilt the Gantry Gantry FWD FWD 25 degrees degrees and and verify verify that that it operate operates s smoothly smoothly..

27

Remove Remov e the shippin shipping g locks locks and any residua residuall oil left left on on the cylind cylinder er..

28

Tilt the Gantry Gantry BWD BWD 25 degrees degrees and and verify verify that that the opera operation tion is smoot smooth. h.

29

Perform a T0, TG Tilt Tilt adjustment. (Refer to Functional Check & Adjustment, Gantry, Tilt Tilt Operation, Tilt Angle.)

30

Swit Sw itch ch ON ON the the Serv Servo o Amp Amp brea breake kerr.

31

Perform a Tilt Speed Adjustment. (Refer to Functional Check & Adjustment, Gantry, Tilt ilt Operation,  Operation, Tilt Speed.)

32

END

1-5-1 Air Bleeding Air bleeding from the cylinder can be performed:  With all of the oil hoses connected to the cylinder.  With the cylinder (to be adjusted) removed from the Gantry frames. In addition, this procedures must be performed whenever the cylinder is replaced. 1

Veri erify fy that that all of of the the oil oil hoses hoses are con connec nected ted to the the cylin cylinder der..

2

Remove Remov e the the Gantry Gantry inner inner botto bottom m meshed meshed plate with its stays, stays, by removin removing g the six hex hex screws. screws.

3

Remove Rem ove the cov cover er of of the the hydrau hydraulic lic valv valve e adjus adjuster ters s (two (two screw screws). s).

SIX HEX SCREWS

COVER

MESHED PLATE É

É

É

É

É

É

É

É

GANTRY BASE

TABLE

1–23

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CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

2124012

1-5-1 Air Bleeding (Continued)  For Left Cylinder 4

Rota Ro tate te th the e two two ad adju just ster ers s (L (LEF EFT T –  BWD  BWD and LEFT – FWD) for the left cylinder to the F direction  direction  (open) until surface of the adjuster head and adjuster base is aligned.

5

Rotate the Rotate the two two adjust adjusters ers (RI (RIGHT GHT – BWD BWD and and RIGHT RIGHT – FWD) FWD) for for the the right right cylin cylinder der to the S direction (close) direction (close) until they stop.

RIGHT

LEFT S

F : FAS AST T (valve (valve is is opene opened.) d.) S : SL SLOW OW (val (valve ve is clos closed ed.) .)

F BWD

ALIGNED

S

F

BASE

F

S

ADJUSTER ADJUSTER BASE

FWD F

S

6

While handing the cylinder with its rod side down, press and hold the [FWD] button of the Gantry panel switch until the rod is fully extracted.

7

Place Pla ce the the cylinde cylinderr with the the air hole hole facin facing g up and with with the the cylinde cylinderr tilted tilted in appr approx. ox. 60 60.

8

Using a hex–head wrench, wrench, loosen the air valve in one turn. (Do not remove it.) Then move the wrench up and down with it inserted into the air valve to vibrate the valve and bleed air.

PLACE THE CYLINDER WITH AIR VALVE FACING UP.

MOVE A WRENCH TO TO VIVIBRATE THE VALVE AND BLEED AIR.

AIR VALVE

OIL WITH AIR

9

Ver erif ify y that that oil oil wit with h air air appe appear ars s from from air air val valve ve..

10

Tight Ti ghten en the air val valve ve sec secure urely ly..

1–24

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GE MEDICAL SYSTEMS

CT PROSPEED SERIES COMPONENT REPLACEMENT

REV 12

2124012

1-5-1 Air Bleeding (Continued) 11

While pressing pressing and and holding the the [BWD] button button of the Gantry Gantry panel panel switch, switch, shorten shorten the cylinder cylinder rod by hand. hand.

12

Repe Re peat at st step eps s 6 to 11 twice or three times. times.

 For Right Cylinder 13

Rotate the two Rotate two adjusters adjusters (RIGHT (RIGHT – BWD BWD and RIGHT – FWD) for for the left cylinder cylinder to the F direction  direction  (open) until surface of the adjuster head and adjuster base is aligned.

14

Rotate the two adjusters (LEFT – BWD and LEFT – FWD) for the right cylinder to the S direction (close) direction (close) until they stop.

15

Repe Re peat at st step eps s 6 to 12

1-6 16

GANT GA NTRY RY TI TIL LT OIL OIL PU PUMP MP

Special Equipment  Tilt Oil Pump  Oil (Z9807QD)  Sealing Tape (PTFE)  Dolly/Shipping Studs END  ; Understand and follow follow the Safety Guidelines Manual.

1

Proceed until step

2

Sett the Se the Ga Gant ntry ry to th the e hom home e pos posit itio ion. n.

3

Switch Swi tch OFF the ”Ro ”Rotat tate” e” and and ”XG” ”XG” swi switch tches es at at the the Gantr Gantry y rear rear base base..

4

Remo Re move ve th the e rea rearr and and bo both th si side de Gan Gantr try y cov cover ers. s.

5

Rais Ra ise e the the ta table ble to ab abou outt the the –1 –150 50 po posi siti tion on..

6

Tilt the Ga Gantry to to th the 2 25 5 BWD position.

7

Switch Swi tch OFF the the ”T ”Tabl able/T e/Tilt” ilt” swi switch tch at the the Gantr Gantry y rear rear base base..

8

Unscrew the six Unscrew six screws screws from from the pump top top cover cover at the Gantry Gantry rear rear base base and remov remove e the top top cover cover (Illustr (Illustraation 1–12).

1–25

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CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

1-6 16

2124012

GANTR GAN TRY Y TILT TILT OIL PUMP PUMP (Co (Cont ntinu inued ed))

TILT PUMP BACK PLATE  (BACK SIDE) DUCT COVER

TILT PUMP TOP TOP COVER GANTRY REAR FRAME ILLUSTRATION ILLUSTRA TION 1–12

CAPACITOR CAPACIT OR FOR OIL PUMP GANTRY REAR SWITCHES EARTH PLATE

GANTRY REAR TOP VIEW GANTRY REAR BASE ILLUSTRATION ILLUSTRA TION 1–13

9

Unscrew Unscr ew the six screws screws from the duct duct cover cover at the the Gantry Gantry rear rear base base and remo remove ve the duct cover cover..

CAUTION Shock hazard. A live current runs through the the rear duct terminal of each switch. Do NOT touch the terminals directly or indirectly (see illustration 1–13).

10

Disconnect the Disconnect the power power cable connec connector tor and and capacitor capacitor from the Oil Oil Pump at the Gantry rear base. base. (Illus (Illustratration 1–13)

1–26

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CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

1-6 16

2124012

GANTR GAN TRY Y TILT TILT OIL PUMP PUMP (Co (Cont ntinu inued ed))

11

Remove Remov e the the Ground cable from the Oil Pump. (Illus (Illustrat tration ion 1–15)

12

Remove Remov e the two two bottom bottom screws screws holding holding down down the the pump box. Their locatio location n is shown shown in illustra illustration tion 1–14. 1–14.

PUMP BOX TOP VIEW BACK PLATE

INDICATES PLATE AND SCREWS TO BE REMOVED

SCREWS PUMP BOX ILLUSTRATION 1–14 ILLUSTRATION

13

Remove the back Remove back plate plate from the pump pump box. It should should be possible possible to move move the box box to access access the the four screws since the bottom screws were removed in step 12

14

Remove the two oil hoses from the pump by loosening the nuts from the elbow joints. The set nut must be loosloosened first. first. (Illustration 1–15)

15

Transfer the two elbow joints from the old pump to the new one. Use sealing tape when attaching the joints to the new pump. Note When applying sealing tape to elbow joints wrap the tape about one and a half times in the opposite When applying direction of the thread.

16

Remove Remov e the four four mounting mounting bolts bolts (torque (torque : 150 150 kg.cm) kg.cm) and take take the old old pump out out of the the pump box. box.

17

Mount the the new pump assy assy into the the pump box and and fasten it with with the four four mounting mounting bolts (torque (torque : 150 150 kg.cm). kg.cm).

18

Perfor Per form m steps steps 14 to to 10 in thei theirr revers reverse e order order..

19

Pourr 550cc Pou 550cc of oil oil into into the the new new oil pum pump. p. Ref Refer er to to sectio section n 1-9 GANTRY PUMP LUBRICATION of LUBRICATION of this manual.

20

Switch ON the ”T ”Table/T able/Tilt” ilt” switch at the the Gantry Gantry rear rear base. base.

1–27

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CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

1-6 16

2124012

GANTR GAN TRY Y TILT TILT OIL PUMP PUMP (Co (Cont ntinu inued ed)) DISCONNECT THIS NUT

ELBOW JOINT

POURING SCREW  (LARGE SIZE)

AIR ESCAPE SCREW  (SMALL SIZE)

GND CABLE

ELBOW JOINT

DISCONNECT THIS NUT LOOSEN SET NUT GANTRY PUMP CONNECTIONS ILLUSTRATION ILLUSTRA TION 1–15

21

Tilt Ti lt the the Gantry Gantry to to the FWD FWD limit limit tilt tilt posi positio tion. n.

22

Tilt Ti lt the the Gantry Gantry to to the BWD BWD limit limit tilt pos positi ition. on.

23

Repeat steps 21 and 22 a few times to remove remove any air air in the Pump Pump or Cylinde Cylinderr.

24

Instal Ins talll the the pump pump top top cove coverr (six (six screw screws). s).

25

Instal Ins talll the the duc ductt cove coverr (six (six scr screws ews). ).

26

Perform a T0, TG Tilt Tilt adjustment. (Refer to Functional Check & Adjustment, Gantry, Tilt Tilt Operation, Tilt Angle.)

27

Perform a Tilt Speed Adjustment. Adjustment. (Refer to Functional Functional Check & Adjustment, Adjustment, Gantry, Tilt Operation, Tilt Speed.)

28

Instal Ins talll the rea rearr and and both both side side Gantry Gantry cov covers ers..

29

Switch ON the the ”Rotate” ”Rotate” and ”XG” ”XG” switche switches s at the Gantr Gantry y base. base.

30

END

1–28

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CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

1-7 17

2124012

STRR ST RR (ST (STRR RR2) 2),, TMR TMR BOAR BOARD D

Special Equipment  STRR or STRR2 Board, TMR Board Gantry 2137xxx, 2123xxx, 2117xxx has 2117xxx has no STRR or STRR2 board.  Dolly/Support Studs END  ; Understand and follow follow the Safety Guidelines Manual.

1

Proceed until step

2

Set the the Gantr Gantry y to the the home home positi position on and and lower lower the the table table to the the lowes lowestt positi position. on.

3

Switch Swi tch OFF OFF the ”Rota ”Rotate” te”,, ”XG” and and ”Slip ”Slip Ring1 Ring115V 15V”” switche switches s at the the Gantry Gantry base. base.

4

Remove Rem ove all the Gant Gantry ry cov covers ers (fr (front ont,, rear rear and bot both h sides sides). ). TMR BOARD

STRR BOARD (STRR2 board) GANTRY REAR VIEW STRR AND TMR BOARD POSITIONS ILLUSTRATION ILLUSTRA TION 1–16

5

Swit Sw itch ch OF OFF F the the Se Serv rvo o Amp Amp.. bre break aker er..

6

Switch Swi tch ON the the Serv Service ice SW and and rota rotate te the the Gantr Gantry y to acc access ess eac each h board board..

7

Remove Remov e the the four four nuts and the back side cover which each board exists on. (Illus (Illustrat tration ion 1–17)

8

Remo Re move ve th the e con conne nect ctor ors s and and re repl plac ace e eac each h boa board rd.. Note  

9 10

TMR board : NO cable STRR board : Three connectors and two wires

Perf Pe rfor orm m ste steps ps 8 to to 2 in th their eir re reve vers rse e ord order er.. END

1–29

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CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

1-7

2124012

STRR (ST (STRR2 RR2), ), TMR BOAR BOARD D (Cont (Continue inued) d)

SEE DETAIL ”A”

BACK COVER

GANTRY GANTR Y FRONT VIEW(RIGHT SIDE)

FOUR NUTS

DETAIL ”A” STRR AND TMR BACK COVER POSITION ILLUSTRATION ILLUSTRA TION 1–17

1–30

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GE MEDICAL SYSTEMS

CT PROSPEED SERIES COMPONENT REPLACEMENT

REV 12

1-8 18

2124012

SER SE RVO AM AMPL PLIF IFIE IER R

Special Equipment

 Servo Amplifier Assy i nch shaft)  Long Phillips (plus) Screwdriver (Number 2,10–12 inch  Tie wraps END  ; Understand and follow follow the Safety Guidelines Manual.

1

Proceed until step

2

Switch OFF the ”Rota ”Rotate”, te”, ”XG”, and ”T ”Table/T able/Tilt” ilt” switc switches hes on the rear Gantr Gantry y base. base.

3

Tur urn n OFF OFF the po powe werr fr from th the e OC. OC.

4

Remove bo both si side co covers.

5

Tur urn n OFF OFF th the e Ser Servo vo Am Amp p bre break aker er..

6

Label and remov remove e the the wires attac attached hed to termi terminal nal strip ”TB ” of the Servo Amplif Amplifier ier,, excep exceptt for those marke marked d with lower case r and s. Refer to to illustration 1–18.

7

Disc Di scon onne nect ct th the e thr three ee gr grou ound nd wi wire res. s.

8

Disc Di scon onne nect ct the the two two cable cable con conne nect ctor ors s from from CN1 CN1 and and CN2. CN2. Note Before disconnecting CN1 and CN2, loosen the locking screws (see illustration 1–18 ))..

9

Remove Remov e the amplif amplifier ier by by unscrewin unscrewing g the the four four screws screws with a long long Phillips Phillips (plus) (plus) screw driver driver..

10

Attach Attac h the furnishe furnished d amplifier amplifier using using the screws screws and plastic plastic insulator insulators s removed removed in step step 9

11

Connec Con nectt the the three three groun ground d wires wires to the the new new Servo Servo Amp. Amp.

12

Connectt all wires removed Connec removed from from the ”TB” ”TB” strip to the the new Servo Amplifie Amplifierr terminals terminals according according to their their labels. labels.

13

Connec Con nectt the the two two cable cable conne connecto ctors rs to to CN1 and and CN2. CN2.

14

Switch ON the ”Rotate ”Rotate”, ”, ”XG”, and ”Table ”Table Tilt” Tilt” switches switches on the rear Gantry Gantry base.

15

Turn Tur n ON the power from the OC. Tur Turn n ON the Servo Amp breake breakerr.

16

For SS Type Gantry Only: Perform the servo amp major adjustment: Turn the VR2 and VR5 on the servo amp approx. 1/2 turn CCW (counterclockwise).

1–31

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CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

2124012

1-8 SERVO AMPLIFIER (Continued) 17

1) 2) 3) 4) 5) 18

Perform  the minor adjustments in the following order according accordi ng to Functional Check & Adjustment, Gantry, Rotation Operation: Gantry Initia Gantry Initializ lize e Movement Movement Rotation Rotat ion Ve Velocity locity Offs Offset et Move Mo veme ment nt Che Check ck Rota Ro tati tion on Spe Speed ed Rotati Rot ation on Deceler Decelerati ation on END

TB STRIP GND

CN1  

CN2

GND PUSH TAB

LOCK SCREWS

PUSH TAB SERVO AMPLIFIER SERVO  AMPLIFIER CABLE DISCONNECTION ILLUSTRATION ILLUSTRA TION 1–18

1–32

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

1-9

2124012

GANTRY GANT RY PUMP (FI (FILLI LLING) NG) LUB LUBRICA RICATION TION

Special Equipment  Oil (Z9807QD)  Sealing Tape (PTFE)  Kim Wipe END  ; Understand and follow follow the Safety Guidelines Manual.

1

Proceed until step

2

Move the Gantry to the 0  tilt position.

3

Switch OFF the the ”XG”, ”XG”, ”T ”Table/ able/Tilt Tilt”, ”, and and ”Rotate ”Rotate”” switches switches at the the Gantry Gantry rear base.

4

Remove Remov e the the pump pump top cover at the Gantr Gantry y rear rear base, six screw screws. s. Refer to illustr illustration ation 1–12.

5

Remove Remov e the small air escape escape screw screw and the the larger larger pouring pouring mout mouth h screw screw from from the pump (Illus (Illustrat tration ion 1–19 1–19 ).

6

Pourr the Pou the est estima imated ted req requir uired ed amo amount unt of oil int into o the the pum pump. p.

7

Switch Swi tch ON the the ”T ”Tabl able/T e/Tilt ilt”” swit switch ch at the Gan Gantry try rea rearr base base..

8

Tilt the Gantry Gantry backwa backward rd while while watching watching the pump pump to see see if excess oil spills spills out out of the pump. pump. If oil oil leaks leaks out of the pump holes then continue to tilt the Gantry slowly while wiping up any oil which spills out of the pump.

9

Veri erify fy tha thatt the the Gant Gantry ry can til tiltt fully fully bac backwa kwards rds 25 degr degrees ees..

10

Return the small air escape screw and the larger pouring mouth mouth screw using sealing tape. Wrap the sealing tape about one and a half times in the opposite direction of the threads.

11

Inst In stall all th the e pump pump top top cov cover er..

12

END

POURING MOUTH POURING MOUTH  (LARGE)

AIR ESCAPE SCREW  (SMALL)

OIL PUMP ILLUSTRATION ILLUSTRA TION 1–19

1–33

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

2124012

1-10 SLIP RING YEARL YEARLY Y MAIN BEARING BEARING GREASE–UP GREASE–UP NOTE This procedure must be performed once a year. Special Equipment  Grease Gun NEW (U0411BD)  (U0411BD) :see note following step 6  Grease Cartridge : Shell Alvania grease#2 NEW  Dolly/Support Studs END  ; Understand and follow follow the Safety Guidelines Manual.

1

Proceed until step

2

Switch Swi tch OFF the ”RO ”ROT TATE” and ”XG ”XG”” swit switche ches s at the Gant Gantry ry rear rear bas base. e.

3

Remo Re move ve th the e re rear ar an and d bo both th si side de Ga Gant ntry ry co cove vers rs..

4

Swit Sw itch ch OF OFF F the the se serv rvo o amp amp br brea eake kerr.

5

Swit Sw itch ch ON th the e ser servi vice ce sw swit itch ch at SU SUB B boa board rd.. Note Rotate the Gantry in the CW direction ONLY to protect the Slip Ring Brushes.

6

Rotate the Gantry by hand(CW) until the tube is about 60 clockwise clockwise from  from the home position to see the bearing grease nipple shown in Illustration 1–20. Note New grease New  grease must be used. Do NOT reuse a grease cartridge; open a brand new new grease cartridge every time you perform this operation.

1–34

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

2124012

1-10 SLIP RING YEARL YEARLY MAIN BEARING GREASE–UP GREASE–UP (Continued) (Continued)

GANTRY REAR VIEW

LEAKED GREASE NIPPLE

ROTOR

ROTATE GANTRY A FEW DEGREES TO FILL THE NEXT BEARING.

NOTE: OLD GREASE WILL ALSO BE EJECTED FROM THE FRONT SIDE OF THE GANTRY.

AREAS TO WHICH GREASE IS APPLIED SLIP RING MAIN BEARING GREASE–UP ILLUSTRATION ILLUSTRA TION 1–20

1–35

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

2124012

1-10 SLIP RING YEARL YEARLY MAIN BEARING GREASE–UP GREASE–UP (Continued) (Continued) 7

Input the Input the greas grease(S e(SHEL HELL L ALV ALVANI ANIA A grease grease #2) #2) into into the the greas grease e gun. gun. New grease New  grease must be used. Do NOT reuse a grease cartridge; open a brand new grease cartridge every time you perform this operation. Note: How to Pack Grease into Gun a. Pull the chain located at the bottom of the gun all the way, then move it to the narrow slit to lock the chain.

c. Pack grease (SHELL ALVANIA grease #2 or equivalent) into the gun body.

NARROW SLIT

d. Ins nsta tall ll the lid to the body securely, then re lease the chain.

b. Remov Remove e the gun body body from from the lid. GUN BODY

BODY

8

GREASE

LID

Attach Att ach the the greas grease e gun to the the beari bearing ng greas grease e nipple( nipple(Illu Illustr strati ation on 1–20) 1–20)..

NOTICE Slow pumping operation is required. If pumped fast, new grease will be soon ejected so that Slow pumping new grease can NOT reach the main bearing. 9

Inject gre Inject grease ase whi while le sque squeezi ezing ng the the leve leverr of of the the gre grease ase gun VERY SLOWLY to SLOWLY to pack new grease into the main bearing housing. (The main bearings are located inside the Gantry rotor base.)

10

After pumping operation is performed a few times, you can see grease leaked from the clearance between the rotor base and Stator. Stator. Then rotate the Gantry a few few degrees counterclockwise counterclockwise by  by hand to fill the next main bearing with grease. See Illustration 1–20. Note Areas to which grease is applied are shown in the circles of Illustration 1–20.

11

To pack grease grease completely completely,, repeat Steps Steps 9~10 until until the gantry gantry rotates rotates three three or four times. times.

1–36

TABLE / GANTRY

 

GE MEDICAL SYSTEMS

CT PROSPEED SERIES COMPONENT REPLACEMENT

REV 12

2124012

1-10 SLIP RING YEARL YEARLY MAIN BEARING GREASE–UP GREASE–UP (Continued) (Continued) 12

Wipe up any lea Wipe leaked ked gre grease ase tho thorou roughl ghly y. Old grease will also be ejected from the clearance between the rotor and Stator in the FRONT FRONT of  of the gantry. Therefore, this must be wiped up thoroughly. thoroughly. See Illustration 1–20.

13

Swit Sw itch ch OFF OFF the the ser servi vice ce swit switch ch..

14

Switch ON the the ”ROT ”ROTA ATE” and ”XG” switch switches es at the Gantr Gantry y rear rear base.

15

Swit Sw itch ch ON ON the the serv servo o amp amp brea breake kerr.

16

Rotate the Gantry for approximately 10 minutes using the toggle switches on the TGP board and verify that the Gantry rotation is smooth.

17

Switch OFF the the ”ROT ”ROTA ATE” and ”XG” switch switches es at the Gantry rear base.

18

Wipe clean clean any any grease grease which which has has leaked leaked between between the the bearing bearing and the the housing. housing.

19

Instal Ins talll the Gan Gantry try bot both h side side and rea rearr cover covers. s.

20

Switch ON the the ”ROT ”ROTA ATE” and ”XG” switch switches es at the Gantr Gantry y rear rear base.

21

END

1–37

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

2124012

1-11 1-1 1 COLL COLLIMA IMATOR TOR FILTER FILTER Special Equipment  Dolly/Support Studs  Filter END  ; Understand and follow the Safety Guidelines Manual.

1

Proceed until step

2

Move the Gantry to the 0 tilt and HOME position.

3

Swit Sw itch ch OF OFF F “R “Rot otat ate” e” an and d ”XG” ”XG” sw swit itch ches es..

4

Remo Re move ve the the Gan Gantr try y righ rightt sid side e and and fron frontt cove covers rs..

5

Remove Remov e the the collimat collimator or cover cover by removin removing g the 4 nuts(T nuts(Torque: orque: 35kg–c 35kg–cm) m) secur securing ing the the cover cover..



Fragile part. The Photo Sensors are very sensitive. Be careful not to bend them. them. 6

Remove Rem ove the the two two long long hexa hexa screws screws and and the the filter filter indi indicat cated ed in Illus Illustra tratio tion n 1–21. 1–21.

7

Instal Ins talll the new new FIL FILTER by pre prefor formin ming g steps steps 6 to 5 in their their reve reverse rse orde orderr.

8

Perform Perfo rm the the following following check/ check/adjust adjustment ment proce procedures dures accor according ding to to Functional Functional Check & Adjust Adjustment ment,, System: System:  FILTER CENTER ALIGNMENT  CALIBRATION  CT NO. ADJUSTMENT

9

END

X–ray Alignment System Calibration System Calibration

1–38

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

2124012

1-11 1-1 1 FIL FILTER TER (Contin (Continued ued))

LONG HEXA SCREWS

PHOTO PHOT O SENSOR

PROTECT BRACKET STEPPING MOTOR MOTOR

FILTER

COLLIMATOR COLLIMAT OR FRONT VIEW

1 FILTER 2 FILTER REMOVAL PATH ( SIDE VIEW)

FILTER ILLUSTRATION 1–21 ILLUSTRATION

1–39

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

2124012

1-12 112 AP APER ERTU TURE RE Special Equipment  Dolly/Support Studs  Aperture END  ; Understand and follow the Safety Guidelines Manual.

1

Proceed until step

2

Set the Gantry to the 0 tilt and the HOME position.

3

Swit Sw itch ch OF OFF F “R “Rot otat ate” e” an and d ”XG” ”XG” sw swit itch ches es..

4

Remo Re move ve th the e fro front nt an and d bot both h side side Ga Gant ntry ry co cove vers rs..

5

Remove Rem ove the the colli collimat mator or cover cover by remov removing ing the the 4 nuts nuts sec securi uring ng the the cover cover..

NOTICE Be Careful Not To Damage the Photo Sensors. 6

Switch ON the service SW located on the SUB board, and rotate the Gantry (CW) to the 180  position by hand.

7

Swit Sw itch ch OF OFF F th the e se serrvi vice ce SW SW..

8

Remove Rem ove the Ste Steppi pping ng Moto Motor’s r’s and Pho Photo to sen senor’s or’s con connec nector tors. s.

9

Remove the Aperture assy from the collimator by removing the 4 nuts(M5 Torque: 35kg–cm) shown in illustration 1–22.

10

Install Inst all the new new Aperture Aperture assy by by performing performing steps 9 to to 8 in their rever reverse se order. order.

11

Perform Perfo rm the function functional al checks: checks: (Refe (Referr to Functional Functional Check Check & Adjustment, Adjustment, Gantry Gantry,, Collimator Collimator,, Aperture Aperture Ratio.) Ratio.)

12

END A REMOVING NUTS(FOUR) TORQUE: 35k–.cm

TUBE

+ +

+ +

+ +

+ +

THE VIEW OF THE APERTURE APERTURE FROM A APERTURE ILLUSTRATION 1–22 ILLUSTRATION

1–40

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

2124012

1-13 DTRE ASSY ASSY (FOR GANTRY GANTRY 2137XXX 2137XXX,, 2123XXX, 2123XXX, 2117XXX 2117XXX ONL ONLY)

1

Switch Swit ch OFF OFF the the “ Rot Rotate ate ”, “ XG”, XG”, “ Slip Ring 115v ” switc switches hes..

2

Remov Rem ove e the the rear rear and and rig right ht and and lef leftt side side Gan Gantr try y cove covers rs..

SAFETY SWITCHES (3)

3

Attach Att ach the saf safety ety swi switch tch bra bracke ckett to the rig right ht side side of Gant Gantry ry..

Á

ÇÁ

ÊÂ

ÄÊÇË

BRACKET ÄÊË

ÄÊË

FRONT VIEW FROM TABLE ÊÂ

4

Ê

Ê

Ê

Sett the Se the Gan Gantr try y to to 1 o’cl o’cloc ock k pos posit itio ion n as fo follo llows ws:: e. Set the service service switch switch of TGP board board from SYS SYS position position to OFF position. position. SYS

TGP MNL

ABT

SPD2

FAST

CONT

FIX

SPD0

SLOW

90

f. Tur Turn n ON the the Service Service switch switch at the the SUB Board Assy Assy.. g. Rotat Rotate e the Gantry Gantry to the the 1 o’clock o’clock position position by hand. hand.

1–41

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

2124012

1-13 DTRE ASSY (FOR GANTRY 2137XXX, 2123XXX, 2117XXX 2117XXX ONLY) ONLY) (Continued) 5

For Gantry 2137xxx Only: Remove the six nuts from the right side of the outer ring cover. Loosen the two right side of the outer ring cover. Then remove thnuts outerfrom ringthe cover.

NUTS (REMOVE)

TWO NUTS (LOOSEN, NOT NECESSARY TO REMOVE THEM.)

OUTER RING COVOUTER RING COVER (RIGHT SIDE)

REMOVAL REMOV AL OF RIGHT SIDE OF OUTER RING COVER

ILLUSTRATION ILLUSTRA TION 1 23

1–42

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

2124012

1-13 DTRE ASSY (FOR GANTRY 2137XXX, 2123XXX, 2117XXX 2117XXX ONLY) ONLY) (Continued) 6

Remove Rem ove the the inner inner slip slip ring ring cover cover,, two(2) two(2) Alle Allen n screws screws and and two(2 two(2)) nylon nylon nuts. nuts.

INNER SLIP RING COVER INNER SLIP TION 1–24 ILLUSTRATION ILLUSTRA

7

Remove Rem ove the DTR DTRE E assy assy bra bracke ckett cov cover er,, fou four(4 r(4)) scre screws. ws.

DTRE ASSY BRACKET COVER ILLUSTRATION ILLUSTRA TION 1–25

1–43

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

2124012

1-13 DTRE ASSY (FOR GANTRY 2137XXX, 2123XXX, 2117XXX 2117XXX ONLY) ONLY) (Continued) 8

Discon Dis connec nectt the thre three(3 e(3)) cable cable connec connector tors(J s(J1,J 1,J2,J 2,J3) 3) from from DTRE DTRE assy assy..

J3

J1 J2

DTRE ASSY ILLUSTRATION 1–26 ILLUSTRATION

9

Unscre Uns crew, w, four four(4) (4) stud studs s and eigh eight(8 t(8)) washer washers, s, and and remove remove the the DTRE DTRE assy assy..

DTRE ASSY ILLUSTRATION 1–27 ILLUSTRATION

10

Insertt the new Inser new DTRE assy assy by perfo performing rming steps steps 9 to 6 in reverse reverse order order..

1–44

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CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

2124012

1-13 DTRE ASSY (FOR GANTRY 2137XXX, 2123XXX, 2117XXX 2117XXX ONLY) ONLY) (Continued) 11

Check Che ck the man manual ual rot rotati ation on as fol follows lows..

a. Switch OFF the the “Rota “Rotate”,“ te”,“XG”,“ XG”,“Slip Slip Ring Ring 115v 115v ” switches switches..

b. Tur Turn n ON the Service Service switch switch at the the SUB Board Board Assy. Assy. c. Rotate the gantry by hand for more than one rotation. Verify that the gantry rotates smoothly, and that there is no abnormal noise. 12

Check Che ck the the rota rotate te move movemen mentt as fol follows lows:: a. Tur Turn n OFF the Service Service switch switch at the SUB Board Board Assy. Assy. b. Set the service service switch switches es of the TGP TGP Board as as follows: follows:  SYS, FIX, PSD0, SLOW, HOME SERVO AMP

SUB BOARD

Á

Á

Á

Á

Á

Á

Á

Á

Á

Á

Á

Á

Á

Á

Á

GANTRY FRONT

ON OFF

TGP BOARD TGP  BOARD Á

Á

Á

Á

Á

Á

Á

Á

Á

Á

TGP BOARD TGP  BOARD SYS

ABT SPD2 FAST FAST CO CONT NT

MNL

FIX

SPD0SLOW

90



Be very careful; stand clear of the rotating gantry. Gantry may experience sudden high speed Be very rotation due to order from the OC.

1–45

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

2124012

1-13 DTRE ASSY (FOR GANTRY 2137XXX, 2123XXX, 2117XXX 2117XXX ONLY) ONLY) (Continued) c. Tur Turn n ON the Gantry Gantry switches switches as shown in the the following following sequence: sequence: (Do not turn on the XG (safety loop) switch. 2

3

4

1

ON  

Slip Ring ––   Rotate ––   Table/Tilt ––   Control.

OFF

Note Be ready to hit the Emergency OFF switch in case of any rotational problems. d. Verify that the Gantry rotation alarm sounds to indicate that Gantry rotation is enabled. e. Set the TGP servi service ce switch switches es as follows follows::  MIN, SVE, PSD0, SLOW, CONT TGP BOARD SY S

AB T

SPD 2

MN L

FIX

SPD0 SLO W

FAST

CONT

90 90 

f. Set ABT/SVE/FIX switch to ABT, and keep depressing it until the gantry rotates for more than one rotation. Verify that the gantry rotates smoothly, smoothly, and that there is no abnormal noise.

1–46

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

2124012

1-13 DTRE ASSY (FOR GANTRY GANTRY 2137XXX, 2137XXX, 2123XXX, 2123XXX, 2117XXX 2117XXX ONLY) ONLY) (Continued) (Continued) g. Do the same same check check for each each of the following following condit conditions: ions: TGP BOARD TGP  BOARD SYS

ABT

SPD2 FAST

CONT

MNL

FIX

SPD0 SLOW

90

Set the TGP service switches to MNL, FIX, SPD0, SLOW, CONT. CONT. Set the TGP service switches to MNL, FIX, SPD0, MDL, CONT. CONT. Set the TGP service switches to MNL, FIX, SPD0, FAST, CONT. Set the TGP service switches to MNL, FIX, SPD1, SLOW, CONT. CONT. Set the TGP service switches to MNL, FIX, SPD1, MDL, CONT. CONT. Set the TGP service switches to MNL, FIX, SPD1, FAST, CONT. Set the TGP service switches to MNL, FIX, SPD2, SLOW, CONT 13

Re–set Re– set the swi switch tch fro from m MNL MNL mode mode to to SYS mod mode e on the TGP boa board. rd. TGP BOARD TGP  BOARD

14

ABT

SPD2 FAST

CONT

MNL

FIX

SPD0 SLOW

90

Perform Perfo rm the followin following g check: (Refer (Reference ence Functiona Functionall Check Manual Manual / DAS/DETE DAS/DETECTOR CTOR tab tab ) 

15

SYS

DAS DATA DATA TRANSFER CHECK

Instal Ins talll the rear rear and and right right and left left side side Gantry Gantry cove covers. rs.

1-14 114 TG TGP P BOAR BOARD D 1

1) 2) 3) 4) 5)

After replacing the TGP Board, perform the following adjustments in the following order according to Functional Check & Adjustment, Gantry, Rotation Operation: Gantry Initia Gantry Initializ lize e Movement Movement Rotation Rotat ion Ve Velocity locity Offs Offset et Move Mo veme ment nt Che Check ck Rota Ro tati tion on Spe Speed ed Rotati Rot ation on Deceler Decelerati ation on

Table: 1) Tab able le Heig Height ht

2) Cra Cradle dle Absol Absolute ute Posit Position ion

1–47

TABLE / GANTRY

 

GE MEDICAL SYSTEMS REV 12

1-15 STRS BOARD Refer to Slip Ring Maintenance Manual.

CT PROSPEED SERIES COMPONENT REPLACEMENT 2124012

1–48

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

2124012

1-16 116 SE SERV RVO O MOTO MOTOR R  1

REMOVE MOTOR ASSY Cut the tie tie–wr –wraps aps fro from m the the four four tie– tie–wra wrap p bases bases on the Axi Axial al Moto Motorr Plate Plate.. See Illustration 1–28.

4

TIE–WRAP  4

3

2

1

MOTOR MOT OR CABLE ATTACHMENT ATTACHMENT ILLUSTRATION ILLUSTRA TION 1–28

1–49

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CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

2124012

1-16 1-1 6 SER SERVO VO MOTOR MOTOR (Continue (Continued) d) 2

Remove Rem ove the the axial axial moto motorr pulley pulley cove coverr using using four four screw screws. s. See See Illustr Illustrati ation on 1–29. 1–29.

PULLEY COVER INSTALLA INSTALLATION TION ILLUSTRATION ILLUSTRA TION 1–29

3

Cut the tie–wrap that secures Axial Motor power cable to its connector, then remove the connector from the motor assy. Disconnect the axial motor connector of the axial motor encoder wire at rear left bottom of the Gantry. See Illustration 1–30.

AXIAL MOTOR CONNECTOR CONNECTOR TIE–WRAP

ENCODER WIRE

ENCODER WIRE ILLUSTRATION 1–30 ILLUSTRATION

1–50

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CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

2124012

1-16 1-1 6 SER SERVO VO MOTOR MOTOR (Continue (Continued) d) 4

Loosen Loose n the two two nuts, nuts, then then loosen loosen the adjust adjustment ment bolt bolt of the belt belt tension tension adjuste adjuster. r. See Illustra Illustration tion 1–31. 1–31.

SPRING

ADJUSTMENT BOLT

BELT TENSION BELT  TENSION ILLUSTRATION 1–31 ILLUSTRATION

5

Remove the motor assy from the Gantry frame at rear left bottom of the Gantry using Allen bolts, washers and spacers at three positions. See Illustration 1–32.

SPACER

WASHER

ALLEN BOLTS

AXIAL MOT AXIAL  MOTOR OR ASSY

ILLUSTRATION ILLUSTRA TION 1–32

1–51

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CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

2124012

1-16 1-1 6 SER SERVO VO MOTOR MOTOR (Continue (Continued) d) 6

Remove Rem ove the ter termin minal al box cov cover er.. See See Illu Illustr strati ation on 1–3 1–33. 3. TERMINAL BOX TERMINAL  BOX COVER TERMINAL BOX

MOTOR TERMINAL BOX MOTOR ILLUSTRATION ILLUSTRA TION 1–33

7

Mark the cables so that the cables can be re–connected properly to the terminals, then, disconnect the cables in the terminal box. See Illustration 1–33.

1–52

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

2124012

1-16 1-1 6 SER SERVO VO MOTOR MOTOR (Continue (Continued) d)  1

INSTALL MOTOR ASSY Remove Remov e the nuts and and washers washers from from the the seven seven studs studs inside inside the the terminal terminal box. See Illustr Illustration ation 1–34.

MOTOR TERMINAL BOX MOTOR TERMINAL ILLUSTRATION ILLUSTRA TION 1–34

1–53

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

2124012

1-16 1-1 6 SER SERVO VO MOTOR MOTOR (Continue (Continued) d) 2

Insert the wires of cable assy from the bottom rear of the Gantry into the terminal box through the hole and con nect them to the studs according to the wire colors as shown in Illustration 1–35.

3

Tig ight hten en th the e nut nuts s to to the the st stud uds s usi using ng wa wash sher ers. s.

YEL

BLU

BRW RED

ORN WHT BLK GRN

MOTOR TERMINAL MOTOR  TERMINAL BOX WIRES CONNECTION ILLUSTRATION ILLUSTRA TION 1–35

4

Instal Ins talll the the ter termin minal al box cov cover er.. See See Ill Illust ustrat ration ion 1–3 1–33. 3.

1–54

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

2124012

1-16 1-1 6 SER SERVO VO MOTOR MOTOR (Continue (Continued) d) 5

Attach the motor assy to the Gantry frame at rear left bottom of the Gantry using Allen bolts, washers and spacers at three positions. See Illustration 1–32. Do not tighten too much since the plate plate will be slid in next step.

6

Slide the axial motor base plate maximum into the direction shown in illustration 1–36, then place the belt to the axial motor pulley. See Illustration 1–36.

AXIAL MOTOR AXIAL  MOTOR BELT BELT PLACEMENT ILLUSTRATION ILLUSTRA TION 1–36

7

Slide the axial motor base plate in opposite direction as in step 6 in order to make the belt more taut, then tighten the Allen bolts so that it still permits plate sliding.

8

Tighten the Tighten the Adjustment Adjustment bolt of the belt belt tension tension adjuster adjuster until until the the spring spring (red color) color) cannot cannot be be seen any any longer longer. See Illustration 1–31.

9

Tight Ti ghten en the thr three ee Alle Allen n bolts bolts of the axia axiall motor motor pla plate. te.

10

Install Inst all the axial motor motor connecto connector, r, then then secure secure the cable cable using tie–wrap tie–wrap as is shown shown in illustration illustration 1–30. 1–30.

11

Connectt the connect Connec connector or of the the axial motor motor encoder encoder wire wire at rear rear left bottom bottom of of the Gantry Gantry

1–55

TABLE / GANTRY

 

GE MEDICAL SYSTEMS

CT PROSPEED SERIES COMPONENT REPLACEMENT

REV 12

2124012

1-16 1-1 6 SER SERVO VO MOTOR MOTOR (Continue (Continued) d) 12

Install Inst all the axial axial motor motor pulley pulley cover cover using using four screw screws. s. See Illustr Illustration ation 1–29. 1–29.

13

Attach Attac h the wire from from the axial axial motor to the the four tie–wrap tie–wrap bases bases on the motor motor plate, plate, using using tie–wraps. tie–wraps. See Illustration 1–29.

14

1) 2) 3) 4) 5)

After replacing the Servo Motor, perform the following adjustments adjustments in the following following order according to Functional Check & Adjustment, Gantry, Rotation Operation: Gantry Initia Gantry Initializ lize e Movement Movement Rotation Rotat ion Ve Velocity locity Offs Offset et Move Mo veme ment nt Che Check ck Rota Ro tati tion on Spe Speed ed Rotati Rot ation on Deceler Decelerati ation on

1–56

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

2124012

1-17 REPLACE REPLACEMENT MENT FROM FROM QJ TUBE TUBE TO TO NP TUBE TUBE Procedure

CAUTION Shock hazard. Wait more than five minutes following the last scan before performing the following procedure.

END  ; Understand and follow the Safety Guidelines Manual (P9011AW). (P9011AW).

1

Proceed un until step

2

Move the Gantry to the 0 tilt and HOME position.

3

Switch Swi tch OFF OFF the ”Rotat ”Rotate”, e”, ”XG” ”XG” and and ”Tabl ”Table/T e/Tilt ilt”” switche switches s at the Gantry Gantry rear rear base. base.

4

Remove Rem ove all Gan Gantry try cov covers ers (fr (front ont,, rear rear and bot both h sides sides). ).

5

Switch Swi tch OFF the fro front nt XG swit switch ch loca located ted bes beside ide the Det Detect ector or..

6

Attach Att ach the saf safety ety swi switch tch bra bracke ckett to the rig right ht side side of Gant Gantry ry..

7

Switch Swi tch ON the the serv service ice swit switch ch on on the the SUB boa board rd near near the TGP boa board. rd.

8

Insert Ins ert the Azi Azimut muth h Lock Lock Pin to pre preven ventt Gant Gantry ry rot rotati ation. on.

9

Swit Sw itch ch OF OFF F the the se serrvi vice ce sw swit itch ch..

10

Switch Swi tch OFF OFF the ”Cont ”Control rol”” switch switch at the the Gantry Gantry rear rear base base..

11

Disconnect Discon nect the the wires wires connected connected to to the board board on top top of the the Anode Anode HV tank(J1 tank(J1 & J6).

12

Disconnect Discon nect the the wires connect connected ed to the board board on top top of the Cathod Cathode e HV tank(J1, tank(J1, J2 & J6). J6).

13

Discon Dis connec nectt the wire wire brown brown connec connector tor on the the cathod cathode e side. side.

1–57

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CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

2124012

1-17 REPLACE REPLACEMENT MENT FROM Qj TUBE to to NP TUBE (Cont (Continued) inued) 14

Remove Rem ove all all the the cables cables from from the the cable cable duct duct as as follows follows:: Note There are two types of the cable duct. STANDARD TYPE

OLD TYPE

CABLE DUCT COVER

CABLES MIRROR CABLES

POSITIONING LIGHT POSITIONING  LIGHT

MIRROR CABLE DUCT COVER POSITIONING LIGHT

1–58

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

2124012

1-17 REPLACE REPLACEMENT MENT FROM Qj TUBE to to NP TUBE (Cont (Continued) inued)

For Cable Duct (Old type) : h. Rem Remove ove the the followi following ng covers covers::       

Cable Duct Cover . . . . . . . . . . . . . . . . . . . . Right Side Cable Duct Cover . . . . . . . . Anode Inverter Cover . . . . . . . . . . . . . . . . CTVRC Cover . . . . . . . . . . . . . . . . . . . . . . . . Terminal Cover . . . . . . . . . . . . . . . . . . . . . . . Transformer Cover . . . . . . . . . . . . . . . . . . . Switch Box Cover . . . . . . . . . . . . . . . . . . . .

Three(3) Nylon Nuts Three(3) Nylon Nuts Four(4) Allen Screws Four(4) Nylon Nuts and Two(2) Bolts Four(4) Nylon Nuts Four(4) Nylon Nuts Four(4) Nylon Nuts

ANODE INVERTER COVER

FOUR(4) ALLEN SCREWS

CABLE DUCT CABLE  DUCT

RIGHT SIDE CABLE DUCT

CTVRC COVER

TRANSFORMER COVER

SWITCH BOX TERMINAL COVER GANTRY ROTATIONAL GANTRY ROTATIONAL ILLUSTRATION ILLUSTRA TION 1–37

1–59

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

2124012

1-17 REPLACE REPLACEMENT MENT FROM Qj TUBE to to NP TUBE (Cont (Continued) inued) i. Discon Disconnect nect the following following externa externall cables and wires wires that are are connected connected to the inverter inverter..  J1, J6, J7 wire connectors(on the Invertor Gate Driver board)  Four(4) optical fiber cables(U186, U187, U200, U201) Do not bend.

FOR GANTR FOR  GANTRY Y P9183xx

FOR GANTRY GANTRY 2137xxx, 2123xxx, 2117xxx

J1 J7

J1 J7

U201

U201 J6

U200 U187

U186

ANODE INVERTER CABLE CONNECTIONS ILLUSTRATION ILLUSTRA TION 1–38

J6

U200 U187

U186

J1

1–60

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

2124012

1-17 REPLACE REPLACEMENT MENT FROM Qj TUBE to to NP TUBE (Cont (Continued) inued)  j. Disconnect the following external cables and wires that are connected to the Filament Supply board. board.  XJ1, XJ4, XJ5, XJ6 wire connectors .  k. Discon Disconnect nect the following following external external cables and wires wires that are connected connected to the CTVRC CTVRC board.  Four optical fiber cables(U53, U87, U124 and U175) Do not bend.  J3, J6, J9 wire connectors  CTVRC connector(behind the Gate Driver board)

OPTICAL FIBER CABLES

550V R 550V  RTN TN +550V U87

J9 U175

U53 U124 GATE DRIVER BOARD

J3

TIE WRAP

TIE WRAP

CTVRC CONNECTOR

TO J6 XJ2 CTVRC CONNECTOR XJ1 XJ7

XJ6 XJ5 XJ4 XJ3

FILAMENT SUPPLY SUPPLY AND CTVRC CABLE CONNECTIONS ILLUSTRATION ILLUSTRA TION 1–39

1–61

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

2124012

1-17 REPLACE REPLACEMENT MENT FROM Qj TUBE to to NP TUBE (Cont (Continued) inued) l. Discon Disconnect nect the wires(b wires(black lack and red) red) leading from from the position positioning ing light to the the TM54(5 TM54(5 and 6). m. Disconnect the wires(brown and light blue) connected to the switch box. n. Discon Disconnect nect the wires wires connected connected to the RL51(3, RL51(3, 4) and RL52(3, 4) in the switch switch box. o. Remov Remove e all the the cables cables from the cable cable duct. duct.

TRANSFORMER TM54

6

5 COVER

BROWN AND LIGHT BLUE WIRES SWITCH BOX RL52

XG SWITCH

RL51

3 3

4

4

DISCONNECT THESE WIRES

DISCONNECT WIRES ILLUSTRATION ILLUSTRA TION 1–40

1–62

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

2124012

1-17 REPLACE REPLACEMENT MENT FROM Qj TUBE to to NP TUBE (Cont (Continued) inued)

For Cable Duct (Standard type) : a. Remov Remove e the cable duct duct cover by unscrewi unscrewing ng its four(4) four(4) nylon nuts. nuts. b. Remov Remove e all the the cables cables from the cable cable duct. duct.

CABLES CABLE DUCT

NYLON NUT

CABLE DUCT CABLE  DUCT COVER

REMOVAL CABLE DUCT COVER REMOVAL ILLUSTRATION ILLUSTRA TION 1–41

1–63

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

2124012

1-17 REPLACE REPLACEMENT MENT FROM Qj TUBE to to NP TUBE (Cont (Continued) inued) 15

Remove Remov e the cable duct by unscrewi unscrewing ng its its four(4) four(4) Allen screws screws..

16

Remove Remov e the positioni positioning ng light and and mirror mirror from from cable duct duct and attach attach them them to the the new cable cable duct. duct.

17

Instal Ins talll the new new cable cable duct (see (see illus illustra tratio tion n 1–42). 1–42).

MIRROR NEW CABLE DUCT CABLE DUCT NUT

STUD SPRING

WASHER

BALL

INSTALLATION INSTALLA TION OF THE NEW CABLE DUCT ILLUSTRATION ILLUSTRA TION 1–42

1–64

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 12

2124012

1-17 REPLACE REPLACEMENT MENT FROM Qj TUBE to to NP TUBE (Cont (Continued) inued) 18

Route Rou te the the remove removed d cable cable in step step 14 throug through h the cable cable duct. duct.

19

Retie Ret ie any tie tie wraps wraps which which were were remove removed d in steps steps 11 11 to 14

20

Inst In stall all th the e cable cable du duct ct cov cover er..

21

Remove the X–Ray Tube Remove Tube as outlined outlined in section section 1–5, X–RA X–RAY Y TUBE, of the the X–Ray Generat Generator or tab of the the INSTALLATION INSTALLA TION / COMPONENT REPLACEMENT  manual.  manual.

22

Remove Remov e the X–Y bar bar by unscre unscrewing wing its its Allen screw and install install the new new one. one.

NEW X–Y BAR

23

Install the new X–Ray Install X–Ray Tube Tube as outlined outlined in section section 1–5, X–RA X–RAY TUBE, of the the X–Ray Generator Generator tab of the the INSTALLATION INSTALLA TION \ COMPONENT REPLACEMENT  REPLACEME NT  manual.  manual.

24

Perform Perfo rm the following following check/adjust check/adjustment ment procedure procedures s according according to the Functional Functional Check/Adjustm Check/Adjustment ent Manual. Manual.        

Clearance Check . . . . . . . . . . . . . . . . . . . . Rotation Balance Check . . . . . . . . . . . . . Positioning Li Light Ad Adjjustment . . . . . . . . X–ray Alignment . . . . . . . . . . . . . . . . . . . . . DAS Offset Check . . . . . . . . . . . . . . . . . . . mA Calibration . . . . . . . . . . . . . . . . . . . . . . . kV and mA Check . . . . . . . . . . . . . . . . . . . . DAS Count Test . . . . . . . . . . . . . . . . . . . . . .

Gantry, Rotational Mechanism Gantry, Rotational Mechanism Gan Ga ntry, Ga Gan ntry and Ta Table System, X–ray Alignment DAS/Detector, DAS Operation, DAS Offset Data X–ray Generator, X–ray Tube, Tube Calibration X–ray Generator, kV and mA X–ray Generator, X–ray Tube

 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . System, System Calibration

 CT No. Adjustment . . . . . . . . . . . . . . . . . . System, System Calibration  Image Performance . . . . . . . . . . . . . . . . . . System, Image Performance Verification

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1-18 1-1 8 AXIA AXIAL L DRIVE DRIVE BEL BELT T Special Equipment  Axial Drive Belt  Tie wraps  Functional Check/Adjustment Manual and CT Slip Ring Maintenance Manual (CD–ROM) END  ; Understand and follow the Safety Guidelines Manual.

1

Proceed until step

2.

Switch OFF OFF the  the OC power.

3.

Switch OFF OFF all  all the breaker switches at the Gantry rear base.

4.

Turn OFF  OFF the  the breaker of Power Distribution Box.

5.

Remo Re move ve rea rearr and and both both sid side e Gant Gantry ry cov cover ers. s.

6.

Inse In sert rt th the e azi azimu muth th lo lock ck pi pin. n.

7.

Remove Remov e the followi following ng from from the the Gantry; Gantry; (Refer (Refer to CT Slip Ring Ring Maintenan Maintenance ce Manual) Manual)  All the outer ring covers  Signal Brush (four screws)  Power Brush (four screws)  Inner slip ring cover

8.

Discon Dis connec nectt all all the the cable cables s conn connect ected ed to to slip slip ring. ring.

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1-18 AXIAL DRIVE BEL BELT T (continue (continued) d) 9.

Loosen Loose n the screws screws shown shown in the the illustrat illustration ion 1–43 1–43 and remove remove the the slip ring ring assy assy from the Gantry Gantry..

NOTICE Among eight places that have screws to loosen, two places have a pin. The two places are arranged in the diagonal positions. Be careful for two pins’ positions when installing the slip ring assy after replacing the axial drive belt.

   



      

ILLUSTRATION 1–43

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1-18 AXIAL DRIVE BEL BELT T (continue (continued) d) 10. Remov Remove e the axial motor motor pulley pulley cover using using four screws. screws. See Illustra Illustration tion 1–44. 1–44.

REMOVAL OF REMOVAL  OF THE AXIAL MOTOR PULLY PULLY COVER ILLUSTRATION ILLUSTRA TION 1–44

11. Loose Loosen n the three mounting mounting plate bolts bolts on Axial Motor Motor Mounting Mounting plate. See Illustra Illustration tion 1–45. 1–45. 12. Loosen the two nuts, then remove the adjustment bolt of the belt tension tension adjuster. adjuster. See Illustration Illustration 1–45. 13. Lift the mounting mounting plate to the direction direction shown shown in illustration illustration 1–45 and remove the axial axial drive belt from the axial axial motor pulley.

    

ADJUSTMENT BOLT    

BELT TENSION BELT TENSION ADJUSTER

AXIAL MOTOR MOUNTING PLATE PLATE ILLUSTRATION ILLUSTRA TION 1–45

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1-18 AXIAL DRIVE BEL BELT T (continue (continued) d) 14. Remov Remove e the axial drive drive belt from from the Gantry Gantry.. 15. Inst Install all new axial axial drive belt belt by referr referring ing to steps steps 14 through through 5. 5. (Properly position the drive belt on and around the Gantry rotational gear ring and axial motor pulley.) 16. Perform the following adjustment and check according to the CD–ROM manual, Functional Check and AdjustAdjust ment. AZIMUTH BELT TENSION MOVEMENT CHECK 17. Resto Restore re the Gantr Gantry y and the the PDU to to original original configurat configuration. ion. 18.

END

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1-19 GANTRY ROT ROTA ATION COUNTER COUNTER (2310012) (2310012) The rotation counter (2310012) must be installed following the procedure below. If the Gantry does not has the new counter fixing plate (2318321) , order the Counter Assy (2318320). Part Number

Name

Remarks

2318320

Counter Assy

Includes 2318321 (Plate) and 2310012 (Counter).

Understand and follow the Safety Guidelines Manual. 1.

Sett the Se the Ga Gant ntrry to to the the 0  tilt position.

2.

Switch OFF OFF the  the OC power.

3.

Switch OFF OFF all  all the breaker switches at the Gantry rear base.

4. 5.

Turn OFF  OFF the  the breaker of Power Distribution Box. Remo Re move ve th the e Gant Gantry ry le left ft si side de co cove verr.

6.

Remove Rem ove the the rotat rotation ion coun counter ter to to be repla replaced ced from from the the Gantry Gantry..

°

Note The short The  short type of the counter fixing plate on the Gantry can NOT be used for a new rotation counter. counter . So, the counter plate must also be replaced with a new type of the fixing plate (long type) when a new counter is used. 7.

Remove Remov e the two screws screws and rotatio rotation n counter counter bracke bracket. t. Replac Replace e the rotat rotation ion counter counter brack bracket et with with a new new one. Screws New Counter Fixing Plate

Long type

Rotation Counter

Counter Fixing Plate

1–70

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1-19 Gantry Rotati Rotation on Counter Counter (23100 (2310012) 12) 8.

Check the rot Check rotati ation on cou counte nterr cabl cable e term termina inals: ls: If the cable terminals are too big to connect the new counter, cut the side edge of the terminals. Cut!

9.

Remove the counter holder from the new counter, then remove the two screws from the holder. Discard the two screws. (The counter holder will be re–used later.) Counter Holder

Screws

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1-19 Gantry Rotati Rotation on Counter Counter (23100 (2310012) 12) 10. Set the the rotat rotation ion count counter er as follo follows: ws: a. Remove the insulation sheet from the t he new rotation counter to activate the battery installed into the counter. counter. (The counter indication will be ramdomly displayed.) b. Se Sett the SW2 SW2 to  to the terminal side. (1 kHz selected) c. Pr Pres ess s the the RST RST (Reset)  (Reset) button to set the counter to “0”. “0”. Verify Verify that the counter indication is “0”. d. Se Sett the SW1 SW1 to  to the terminal side. (Key protection – ON selected) Step a.

Step b. Insulation Sheet 2

Step d.

Step c.

2

Reset Button

1

1

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1-19 Gantry Rotati Rotation on Counter Counter (23100 (2310012) 12) 11. Put the counter holder into the cables, disconnected at step 6, then pull the cables outward through the Gantry frame hole where the counter will be installed. 12. Put the rubber seal into the count counter er.. 13. Connect Connect the cables cables to the termi terminals nals of the counter counters; s; Red cable to No.1 terminal, and Black cable to No.2 terminal. 14. Inst Install all the new rotation rotation counter counter until the counter counter holder holds holds the counter counter securely securely.. 15. Inst Install all the termina terminall protector protector (plastic (plastic)) onto the the terminal. terminal.

Í

Holder Counter

Í

Protector

Í

Í

1

2

Í

Rubber Seal

Í

Í

Í

Gantry Frame

16. Resto Restore re the the Gantry Gantry to origina originall configurat configuration. ion. 17.

END

      d      e       R

      k      c      a       l       B

3

4

1–73

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SECTION 2 – TABLE

2- 1

BOT OTT TOM COVER VERS

Special Equipment  None

22-1– 1–1 1

Fron Frontt Bott Bottom om Co Cove verr END  ; Understand and follow follow the Safety Guidelines Manual.

1

Proceed until step

2

Move Move the crad cradle le OUT to to its full fully y ret retrac racted ted p posi ositio tion n (fa (farth rthest est ffrom rom Gant Gantry) ry)..

3

Ra Rais ise e tthe he Table able to its its h hig ighe hest st posi positi tion on..

4

Switch Switch OFF tthe he ””T Table/T able/Tilt ilt”” switc switch h at the Gant Gantry ry rrear ear base. base.

5

Unscrew Unscrew and remov remove e tthe he four foot peddle peddles. s. Refer to illustration illustration 2–1 for their locati locations. ons.

6

Re Remo move ve the the fou fourr p pla last stic ic si side de caps caps,, tw two op per er si side de..

7

Un Unsc scre rew w th the e four four s sid ide e sc scre rews ws a and nd rrem emov ove e th the e co cove verr.

8

Install Install the the front front bottom bottom cov cover er b by y performi performing ng s steps teps 7 to 4 in ttheir heir rever reverse se o order rder.. Operat Operate e th the e fo foot ot p peddles eddles and ensure that they are labelled correctly.

WARNING! WHEN  INSTALLING THE FOOT PEDALS, THE PEDAL WITH WHEN UP TO THE PEDAL SWITCH WITH  ; PEDAL TO ALSO INSERT THE PEDAL HOLDER INTO SWITCH SLIT.

9

22-1– 1–2 2

END

Re Rear ar Bott Bottom om Co Cove verr Note

ALLED MUST BE INST INSTALLED DOWN

 SWITCH.

The front bottom cover must by removed before the rear bottom cover can be removed.

2–1

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2124012 Re Rear ar Bott Bottom om Cove Coverr (Co (Cont ntinu inued ed)) END  ; Understand and follow the Safety Guidelines Manual.

1

Proceed until step

2

Move Move the crad cradle le OUT to to its full fully y retrac retracted ted p posi ositio tion n (farth (farthest est ffrom rom Gant Gantry) ry)..

3

Ra Rais ise e tthe he Table able to its its h hig ighe hest st posi positi tion on..

4

Switch Switch OFF tthe he ””T Table/T able/Tilt” ilt” swi switch tch at tthe he Ga Gantr ntry y re rear ar b base ase..

5

Remove Remove tthe he two two ver vertic tical al screw screws s at the the fro front nt of tthe he cover cover s show hown n in ill illust ustrat ration ion 2–1. 2–1.

6

Remove Remove tthe he four four plastic plastic caps caps that guard the rear leg screws, screws, two on each side of the table table..

7

Remove Remove the two screws screws and was washer hers s from from e each ach side side of the tab table. le.

8

Slide Slide the rear rear legs legs up and and fre free e fro from m the bo botto ttom m fra frame me an and d the then n pull tthe he cover cover fforw orward ard..

9

Instal Installl th the e cov cover er b by y perfor performin ming g steps steps 8 tto o 4 in ttheir heir rev revers erse e or order der..

10

END

FOOT PEDDLE

ALIGN BOTTOM COVER FRONT

BOTTOM BOTT OM COVER REAR

UP DOWN

CAPS LEGS

TABLE FRONT AND REAR BOTTOM BOTTOM COVERS ILLUSTRATION ILLUSTRA TION 2–1

2–2

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2124012

SIDE C CO OVERS

Special Equipment  None

END  ; Understand and follow follow the Safety Guidelines Manual.

1

Proceed until step

2

Switch OFF th the e ”XG” and ”Rotate ”Rotate”” switches, switches, and sw switch itch O ON N the ”Table/T ”Table/Tilt” ilt” switch at th the e Gant Gantry ry re rear ar ba base. se.

3

Se Sett the the Table able to its its h hig ighe hest st posit positio ion. n.

4

Move Move the crad cradle le OUT to to its full fully y ret retrac racted ted p posi ositio tion n (fa (farth rthest est ffrom rom Gant Gantry) ry)..

5.

Switch OFF the ”Table/T ”Table/Tilt” ilt” switch at the rear base of the Gantry Gantry..

6

Unscrew the seven screws running along the undersurface seam between the right and  left side covers ( Illustration 2–2) .

CRADLE

GANTRY

4 PLASTIC CAPS ( 2 ALLEN SCREWS PER SIDE) UNDERSURFACE SEAM SCREWS

SIDE COVER SCREW LOCATIONS ILLUSTRATION ILLUSTRA TION 2–2

7

Remove Remove tthe he four four p plas lastic tic c caps aps s shown hown in illust illustrat ration ion 2 2–2 –2 (two (two per per side). side).

8

Remove Remove the fou fourr side side Al Allen len scr screws ews sho shown wn in illustr illustrati ation on 2–2 (tw (two o pe perr si side) de)..

2–3

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22-2 2 9

2124012

SI SIDE DE C COV OVER ERS S (Con (Conti tinu nued ed)) Remove Remove the the left cover’s botto bottom m holding screw screws. s. Illust Illustratio ration n2 2–3 –3 shows the screw locati locations. ons.

SCREWS LEFT SIDE

GANTRY SCREWS RIGHT SIDE TABLE BOTTOM BOTTOM VIEW ILLUSTRATION ILLUSTRA TION 2–3

10

Slightly disengage disenga ge the Left Cover at the end closest to the Gantry, and slide it free from the table until the Latch and Touch Touch Sensor SW connectors are visible.

11

Disconnect Disconnect the Latch Latch S SW W and Touch S Sensor ensor SW cab cable le con connecto nectors. rs.

12

Remo Remove ve the the L Lef eftt Cove Coverr.

13

Remove Remove the R Right ight Side Side Cover by fol following lowing tthe he proce procedures dures outline outlined d in st steps eps 9 to to 12 fo forr the o opposit pposite e side.

14

END

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2124012

CRADLE

Special Equipment  None

END  ; Understand and follow follow the Safety Guidelines Manual.

1

Proceed until step

2

Switch OFF th the e ”XG” and ”Rotate ”Rotate”” switches, switches, and sw switch itch O ON N the ”Table/T ”Table/Tilt” ilt” switch on th the e Gant Gantry ry re rear ar ba base. se.

3

Move Move th the e Tab Table le to its its high highes estt p pos osit ition ion..

4

Move Move the crad cradle le OUT to to its full fully y ret retrac racted ted p posi ositio tion n (fa (farth rthest est ffrom rom Gant Gantry) ry)..

5.

Switch OFF the ”Table/T ”Table/Tilt” ilt” switch on tthe he rrear ear base of tthe he G Gantry antry..

6

Remove Remove tthe he six plas plastic tic caps caps ffrom rom tthe he cr cradl adle e end h hand andle le (s (see ee illus illustra tratio tion n 2–4 ))..

7

Remove Remove tthe he four four h hexa exagon gonal al bo bolts lts from from the cra cradle dle end end handl handle e (se (see e Ill Illust ustrat ration ion 2–4 2–4 ). ).

8

Slide o ou ut th the c crradle.

4 PLASTIC CAPS 4 BOLTS BOLTS

2 PLASTIC CAPS

CRADLE END HANDLE TION 2–4 ILLUSTRATION ILLUSTRA

9

After installing the new cradle, perform the following gap adjustments according to Functional Check & AdjustAdjust ment, Table, Table, Longitudinal Function, Cradle Mechanics. Gap between Frame and Cradle Gap between Cradle and Cradle Support

10

END

2–5

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2124012

CRAD CRADLE LE POTE POTENT NTIO IOME METE TER R

Special Equipment  Cradle Potentiometer  Tie wraps

END  ; Understand and follow follow the Safety Guidelines Manual.

1

Proceed until step

2

Switch OFF th the e ”XG” and ”Rotate ”Rotate”” switches, switches, and sw switch itch O ON N the ”Table/T ”Table/Tilt” ilt” switch on th the e Gant Gantry ry re rear ar ba base. se.

3

Se Sett the the Table able to its its h hig ighe hest st posit positio ion. n.

4

Move Move the crad cradle le OUT to to its full fully y ret retrac racted ted p posi ositio tion n (fa (farth rthest est ffrom rom Gant Gantry) ry)..

5.

Switch OFF the ”Table/T ”Table/Tilt” ilt” switch on tthe he rrear ear base of tthe he G Gantry antry..

6

Remove Remove the Lef Leftt Side Side Cove Coverr of the Table. able. See Ill Illust ustrat ration ion 2–5 2–5.. Refer Refer to to secti section on 2-2 SIDE COVERS. COVERS. LEFT SIDE COVER

TABLE (TOP VIEW)

G A N T R Y

TA TABLE BLE LEFT SIDE COVER ILLUSTRATION ILLUSTRA TION 2–5

7

Remo Remove ve the the Cr Crad adle le.. Re Refe ferr to sect sectio ion n 2-3 CRADLE. CRADLE.

8

Re Remo move ve both both bott bottom om cove covers rs.. Re Refe ferr to sect section ion 2-1 BOTTOM COVERS. COVERS.

9

Remove Remove tthe he cover cover whic which h is lo locat cated ed un under der the crad cradle le close closest st to to the Gantry Gantry (4 s scre crews) ws)..

10

Re Remo move ve the the c cra radle dle tra tray y (4 scr screw ews) s)..

11

Remove Remove the T TABLE ABLE BOARD ASS ASSY Y protective protective cover cover (4 scre screws). ws). It Its s location location is shown in illus illustrati tration on 2–6.

2–6

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2124012

CRADL CRADLE E POTE POTENT NTIOM IOMET ETER ER (Co (Cont ntinu inued ed))

OIL PUMP

GANTRY

TABLE BOARD ASSY FOR T FOR  TABLE ABLE P9185AB/AF/AG:  T  TOP OP VIEW

SIDE VIEW TABLE DRIVER

GANTRY

FOR TABLE TABLE 2129562/3/4:  T  TOP OP VIEW TABLE BOARD ASSY LOCATION LOCATION ILLUSTRATION ILLUSTRA TION 2–6

12

Disconnect Disconnect c connect onnector or C CN3 N3 from from the the T TABLE ABLE BOARD ASSY ASSY..

13

Ve Verify rify that that the end of the c cradle radle is in the ou outt limit pos position, ition, th then en loosen th the e two coupli coupling ng screw screws s closest tto o the Potentiometer.. Refer to Illustrations 2–7 and 2–8. Potentiometer Note Be careful not to move the thin cradle potentiometer cable. CRADLE CABLE

SET SCREWS

POTENTIOMETER

POTENTIOMETER LOCATION LOCATION ILLUSTRATION ILLUSTRA TION 2–7

2–7

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CRADL CRADLE E POTE POTENT NTIOM IOMET ETER ER (Co (Cont ntinu inued ed))

Disk

SUPPORT SCREWS (2)

COUPLING SUPPORT BRACKET

COUPLING SCREWS (POTENTIOMETER SIDE)

SET NUT

POTENTIOMETER

1

2

3

4

CN3

MEASURE RESISTANCE BETWEEN PIN 2 AND PIN 3 POTENTIOMETER ILLUSTRATION 2–8 ILLUSTRATION

14

Remove the support bracket bracket together with the Potentiometer Assy Assy,, with its wires still a attached, ttached, by unscrewing the support screws shown in illustration 2–8 and then feeding connector CN3 up through the table.

15

Remove Remove the set n nut ut and tr transfe ansferr the sup support port br bracket acket tto o the new cr cradle adle pot potentiom entiometer eter . Tigh Tighten ten the the bracket bracket in place using the set nut.

16

Feed the the wiring of the new new Poten Potentiome tiometer ter do down wn to th the eT TABLE ABLE BOARD BOARD ASSY ASSY,, retie an any y tie wra wraps ps which w were ere removed in step 14

17

Install Install the the new potentiome potentiometer/s ter/suppor upportt br bracket acket,, and ttighten ighten the suppor supportt sc screws. rews.

2–8

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2124012

CRADL CRADLE E POTE POTENT NTIOM IOMET ETER ER (Co (Cont ntinu inued ed)) Adjust the Potentiometer so that the resistance between Pin 2 and Pin 3 of CN3 is 500  100 Then tighten the two coupling screws (Illustration 2–8). 



Note It may be difficult difficult to access one of the coupling screws after adjusting the pot potentiometer entiometer.. If this is the case, the  case, then tighten the accessible coupling screw and move the cradle sightly forward toward the Gantry.  Tighten the second coupling screw and then return the cradle handle to its mechanical outer limit. 19

Verify that the resistance between Pin 2 and Pin 3 of CN3 is still 500100 If it is not then repeat step 18

20

Prefor Preform m step steps s 12 thr throug ough h 6 in thei theirr rev revers erse e orde orderr.

 

 21 Perform a P0, PG longitudinal adjustment. Function, Cradle Absolute Position.) 22

22-5 5

(Refer to Functional Check & Adjustment, Table, Longitudinal

END

HEIG HEIGHT HT PO POTE TENT NTIO IOME METE TER R

Special Equipment  Height Potentiometer  Grease  Tie wraps

END  ; Understand and follow follow the Safety Guidelines Manual.

1

Proceed until step

2

Switch OFF th the e ”XG” and ”Rotate ”Rotate”” switches, switches, and sw switch itch O ON N the ”Table/T ”Table/Tilt” ilt” switch on th the e Gant Gantry ry re rear ar ba base. se.

Rotate

3

Move Move th the e Tab Table le to its its high highes estt p pos osit ition ion..

XG Table/Tilt Control Safety Loop

Slip Ring 115V DAS/DET

4

Move Move the crad cradle le out to it its s ful fully ly re retra tracte cted d pos positi ition on (f (fart arthes hestt from from Ga Gantr ntry). y).

5

Remove both bottom bottom covers. Refer to section 2-1 BOTTOM COVERS of the Table/Gantry Table/Gantry tab of this manual.

2–9

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22-5 5 6

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HEIGHT HEIGHT PO POTE TENT NTIOM IOMETE ETER R (Co (Cont ntin inue ued) d) Move Move th the e Tab Table le down down to a h hei eigh ghtt of of 350 350 mm  5 mm, as shown in illustration 2–9, using a scale.

350+ 5m

CRADLE

350+ 5mm 9 mm

Approx.  9mm Approx. 50mm

TABLE FRAME

Floor

Rotate

XG Table/Tilt Control Safety Loop

Slip Ring 115V DAS/DET

TABLE HEIGHT SETTING TABLE HEIGHT ILLUSTRATION ILLUSTRA TION 2–9

7

Switch Switch OFF the ”Table ”Table/T /Tilt ilt”” sw switc itch h on the rea rearr base base of of the the Ga Gantr ntry y.

8

Remo Remove ve the the Cr Crad adle le.. Re Refe ferr to sect sectio ion n 2-3 CRADLE of the Table/Gantry tab of this manual.

9

Remove Remove th the e cra cradle dle ttray ray (4 (4 scr screws). ews). The Height Height Potent Potentiomet iometer er is in the the po position sition shown in Il Illustr lustration ation 2–10.

10

Remove Remove the T TABLE ABLE BOARD ASS ASSY Y protective protective cover cover (4 scre screws). ws). It Its s location location is shown in illus illustrati tration on 2–10.

11

Loosen Loosen th the e tw two o coupling coupling set screw screws s (Illustr (Illustration ation 2–10) 2–10).. Note It may be necessary to lower the table to gain access to one of the height potentiometer coupling screws.   If this is done then be su screws. sure re to return the table to its hig highest hest position, and return the Gantry ”T ”Table/Tilt” able/Tilt” switch to the OFF position.

12

Remove the Potentiometer Assy together with its bracket by unscrewing the two support nuts (Illustration 2–10).

13

Disconnect Disconnect con connecto nectorr CN2 fro from m the T TABLE ABLE BOA BOARD RD ASSY and feed it u up p throu through gh the table. table.

14. Remove the Height Potentiometer Assy from the bracket, and mount the new Potentiometer Assy onto the old

bracket. 15

Install Install the new new Height P Potent otentiomet iometer/br er/bracket acket A Assy ssy to tthe he T Table able left left side fr frame. ame.

2–10

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 14

22-5 5

2124012

HEIGHT HEIGHT PO POTE TENT NTIOM IOMETE ETER R (Co (Cont ntin inue ued) d)

16

Apply grease grease to the potent potentiomet iometer er sh shaft aft if n necessa ecessary ry..

17

Feed the the wiring of the new new Poten Potentiome tiometer ter do down wn to th the eT TABLE ABLE BOARD BOARD ASSY ASSY,, retie an any y tie wra wraps ps which w were ere removed in step 14

  TO GANTR GANTRY Y

TABLE LEFT SIDE FRAME

 BRACKET

COUPLING SET SCREWS

PLATE SUPPORT SUPPORT NUTS (2) HEIGHT POTENTIOMETER HEIGHT  POTENTIOMETER

POTENTIOMETER NUT

TABLE BOARD ASSY

HEIGHT POTENTIOMETER

TABLE TOP VIEW PLATE SUPPORT SUPPORT NUTS

  TO GANTR GANTRY Y

BRACKET SIDE VIEW HEIGHT POTENTIOMETER ILLUSTRATION ILLUSTRA TION 2–10

18

Adjust the Height Potentiometer so that the resistance between Pin 2 and Pin 3 of CN2 is 1000  100 Then tighten the two coupling screws. 

Note Adjust the Adjust  the Height Potentiometer resistance by turning the Potentiometer ’s shaft shaft with a trimmer adad juster/tweaker (small  juster/tweaker  (small slotted screw driver). It can be accessed through the hole in the left side cover as shown in illustration 2–11.

2–11

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 14

22-5 5

2124012

HEIGHT HEIGHT PO POTE TENT NTIOM IOMETE ETER R (Co (Cont ntin inue ued) d) CRADLE

GANTRY SIDE USE THIS HOLE TO ADJUST TO ADJUST THE POTENTIOMPOTENTIOMETER TABLE LEFT SIDE VIEW HEIGHT POTENTIOMETER HEIGHT  POTENTIOMETER ADJUSTMENT ILLUSTRATION ILLUSTRA TION 2–11 2–11

19

Verify that the resistance between Pin 2 and Pin 3 of CN2 is still 1000 100 If it is not, then repeat step 18

20

Connect Connect the new CN CN2 2 connector connector to the the T TABLE ABLE BO BOARD ARD ASS ASSY Y.

21

Perfor Perform m ste steps ps 10 th throu rough gh 5 in their their rev revers erse e orde orderr.

22

Perform the H0, HG height adjustment adjustment procedure. (Refer to Functional Functional Check & Adjustment, Table, Elevation Function, Table Height.)

23

 

END



2–12

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 14

22-6 6

2124012

TAB ABLE LE SOLEN SOLENOID OID VALVE ALVE

Special Equipment  Table Solenoid Valve  Support Tool Z9817EB  Support Tool Adjuster U0116AE  Oil (Z9807QD)  Sealing Tape (PTFE)  Tie wraps  Kim Wipe

 CRASH HAZARD! THE TABLE MUST BE SUPPORTED USING THE SUPPORT TOOL Z9817EB AS DESCRIBED BELOW WHEN CHANGING THE SOLENOID VALVE.

 Table P9185AB/AF/AG:

END  ; Understand and follow follow the Safety Guidelines Manual.

1

Proceed until step

2

Move Move the the ttab able le to to it its s hi high ghes estt p pos osit itio ion. n.

3

Switch Switch OFF the ”Ro ”Rotat tate”a e”and nd ”XG” ”XG” switche switches s on the rea rearr Gantr Gantry y ba base. se.

4

Remove Remove the right right and lef leftt s side ide tab table le cov covers ers.. Ref Refer er to sec sectio tion n 2-2 SIDE COVERS. COVERS.

5

Remo Remove ve the the Cr Crad adle le.. Re Refe ferr to sect sectio ion n 2-3 CRADLE. CRADLE.

6

Remove Remove the cradle tray (4 scr screws) ews) to to gain access to th the e sole solenoid noid flow flow va valve lve th through rough the ttop op of the table. table.

7

Attach the support tool (Z9817EB) to the undersurface of the table on the side farthest from the Gantry using the two bolts currently screwed into the bottom of the table frame. Lower the table onto the support (see illustration 2–12). Note When using When  using the support support tool (Z9817EB) the adjuster (U0116AE) (U0116AE) should be partially extended, about

5cm, before suppor supporting ting the table. 8

Switch Switch OFF tthe he ””T Table/T able/Tilt” ilt” swi switch tch at tthe he rrear ear Gantry Gantry base. base.

2–13

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 14

2-6

2124012

TABL ABLE E SOLEN SOLENOID OID VALVE ALVE (Con (Contin tinued ued))

9

Disconnect Disconnect the power wire connec connector tor leading from the soleno solenoid id v valve. alve. Refer to illustration illustration 2–13.

10

Remove Remove the pres pressure sure re relief lief valv valve e and cent center er joint ffrom rom th the e solenoi solenoid d valve and and attac attach h it to the ne new w one using sealing tape. Refer to Section 2-7 PRESSURE RELIEF VALVE VALVE.. Keep the flow adjuster valve closed (hand tightened fully CW). Note When wrapping sealing tape around end joints, wrap the tape in the opposite direction of the threads (about one and a half turns).

11

Slightly Slightly loosen the the set and tightenin tightening g nuts secu securing ring the hi high gh pressu pressure re hoses. T The he hoses wil willl be remove removed d later in step13

12

Remove Remove the two screws screws fixing the s solenoid olenoid valve to tthe he tab table le fr frame. ame. Note While disconnecting While  disconnecting the high pressure hoses, hold the hoses vertically as high as possible to avoid leaking. GANTRY

TABLE ARMS GANTRY

SUPPORT T SUPPORT TOOL OOL BOLTS BOL TS (2)

BOLTS BOL TS (2)

(TOP VIEW)

SUPPORT T SUPPORT TOOL OOL (Z9817EB) 5 cm SUPPORT T SUPPORT TOOL OOL (Z9817EB)

É

É

É

É

É

É

ADJUSTER (U0116AE)

(SIDE VIEW)

(FRONT VIEW) TABLE SUPPORT TOOL TOOL ILLUSTRATION ILLUSTRA TION 2–12

2–14

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 14

2-6

2124012

TABL ABLE E SOLEN SOLENOID OID VALVE ALVE (Con (Contin tinued ued))

13

Hold the the solen solenoid oid valve valve as high as poss possible ible and discon disconnect nect tthe he high p pressu ressure re hos hoses. es.

14

Remove Remove the e elbow lbow joints joints an and d atta attach ch the them m to th the e new s solenoid olenoid valve u using sing se sealing aling ttape. ape.

15

Attach Attach th the e re relief lief valve (drai (drain) n) hose hose tto o th the e rel relief ief v valve. alve.

16

Attach Attach the the high high pres pressur sure e hose hoses s to th the e new so soleno lenoid id valve. valve.

17

Instal Installl the ne newly wly assem assemble bled d sole solenoi noid d valv valve e to the ttabl able. e.

18

Connec Connectt the power power wir wire e conn connect ector or..

19

Adjust the fl flow ow adjuster adjuster b by y turning turning it fully C CW W and then then tw two o full tturns urns C CCW CW.. Tighten the set nut.

20

Tighten Tighten a allll nuts nuts and retie any ttie ie wra wraps ps which which hav have e been remov removed. ed.

21

Loosen Loosen the adjust adjuster er of the sup support port tool tool and caref carefully ully rem remove ove the sup support port to tool ol from und under er the tab table. le.

22

Power ON the ”Table ”Table T Tilt” ilt” switch on th the e rear Gantry base.

CAUTION Crash hazard. Do NOT Do NOT power the table upwards after replacing the magnetic flow valve until it has been lowered first; this will feed unwanted air into the valve. 23

Lower the ttable able a and nd ver verify ify that that all all mov movement ement is sm smooth ooth and no normal. rmal.

24

Move the the table up up and verify verify that that it is ope operatin rating g norma normally lly.. If there there is a sh shortag ortage e of oil (t (the he table will will not rrise ise to its normal limit), then add more oil as described in Section 2-11–1 2-11–1  Table Pump Minor Lubrication Lubrication..

25

Move the the tab table le up and and down a few tim times es to rremove emove air from from the syste system. m.

26

In Inst stall all the the c cra radl dle e tra tray y.

27

In Inst stal alll the the cr crad adle le..

28

In Inst stall all the the si side de tab table le cov cover ers. s.

29

END

2–15

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 14

2-6

2124012

TABL ABLE E SOLEN SOLENOID OID VALVE ALVE (Con (Contin tinued ued)) SCREWS

FLOW ADJUSTER HIGH PRESSURE HOSE

SOLENOID

DRAIN HOSE

PRESSURE RELIEF VALVE

HIGH PRESSURE HOSE

BOTTOM VIEW ISOMETRIC

TO POWER LINE CONNECTOR

FLOW ADJUSTER

FLOW ADJUSTER

SET NUT

SOLENOID

SET NUT SCREWS (2)

TIGHTENING  NUT CENTER JOINT

SET NUT HIGH PRESSURE HOSE

PRESSURE RELIEF VALVE

DRAIN HOSE

ELBOW JOINT RELEASE NUT

BOTTOM VIEW

SIDE VIEW TABLE SOLENOID AND RELIEF VALVE VALVE ILLUSTRATION ILLUSTRA TION 2–13

2–16

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 14

2-6

2124012

TABL ABLE E SOLEN SOLENOID OID VALVE ALVE (Con (Contin tinued ued))

 Table 2129562/3/4:

1

Proceed until step

END  ; Understand and ffollow ollow the Safety Guidelines Manual.

2

Move Move the the ttab able le to to it its s hi high ghes estt p pos osit itio ion. n.

3

Switch Switch OFF the ”Ro ”Rotat tate”a e”and nd ”XG” ”XG” switche switches s on the rea rearr Gantr Gantry y ba base. se.

4

Remove the right and left side table covers. covers. Refer to section 2-2 SIDE COVERS of the Table/Gantry tab of this manual.   manual.

5

Remo Remove ve the the Cr Crad adle le.. Re Refe ferr to sect sectio ion n 2-3 CRADLE of the Table/Gantry tab of this manual.

6

Remove Remove tthe he crad cradle le tray tray (4 screws screws)) to g gain ain a acce ccess ss to to the soleno solenoid id va valve lve..

TABLE (FOR TABLE  (FOR TABLE TABLE 2129563 or 2129564) ILLUSTRATION ILLUSTRA TION 2–14

7

Attach the support tool (Z9817EB) to the undersurface of the table on the side farthest from the Gantry using the two bolts currently screwed into the bottom of the table frame. Lower the table onto the support (see illustration 2–15).

Note When using When  using the support support tool (Z9817EB) the adjuster (U0116AE) (U0116AE) should be partially extended, about 5cm, before suppor supporting ting the table.

2–17

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 14

2-6 8

2124012

TABL ABLE E SOLEN SOLENOID OID VALVE ALVE (Con (Contin tinued ued)) Switch Switch OFF tthe he ””T Table/T able/Tilt” ilt” swi switch tch at tthe he rrear ear Gantry Gantry base. base.

GANTRY TABLE ARMS

GANTRY

(TOP VIEW)

SUPPORT T SUPPORT TOOL OOL BOLTS BOL TS (2) BOLTS BOL TS (2)

SUPPORT T SUPPORT TOOL OOL (Z9817EB) 5 cm É

É

É

(SIDE VIEW) SUPPORT T SUPPORT TOOL OOL (Z9817EB)

ADJUSTER (U0116AE)

(FRONT VIEW) TABLE SUPPORT TOOL (2129563 or 2129564) ILLUSTRATION ILLUSTRA TION 2–15

2–18

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 14

2-6

2124012

TABL ABLE E SOLEN SOLENOID OID VALVE ALVE (Con (Contin tinued ued))

9

Disconnect Disconnect the power wire connec connector tor leading from the soleno solenoid id v valve. alve. Refer to illustration illustration 2–16.

10

Slightly Slightly loosen the the set and tightenin tightening g nuts secu securing ring the h high igh pressure pressure hos hose e and discon disconnect nect the hi high gh press pressure ure hose.

11

Loosen Loosen the s set et and tightening tightening n nuts uts a and nd dis disconnec connectt th the e ret return urn ho hose. se. Note When wrapping sealing tape around end joints, wrap the tape in the opposite direction of the threads (about one and a half turns).

SOLENOID VALVE VALVE FLOW ADJUSTER ELBOW JOINT

ELBOW JOINT

SET NUT

TIGHTENING NUT FLOW CONTROL VALVE VALVE SET NUT

RETURN HOSE

HIGH PRESSURE HOSE

TO POWER LINE CONNECTOR CYLINDER

TABLE SOLENO SOLENOID ID (FOR TABLE 2129563 or 2129564) ILLUSTRATION ILLUSTRA TION 2–16

2–19

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 14

2-6

2124012

TABL ABLE E SOLEN SOLENOID OID VALVE ALVE (Con (Contin tinued ued))

12

Remove Remove the solen solenoid oid valve from from the elbo elbow w joint on the flow flow contr control ol valve tur turning ning itse itself lf to CCW direction. direction.

13

Remove the elbow joint from the solenoid valve and attach them to tthe he new solenoid valve using sealing tape.

14

Install Install the the ne new w sole solenoid noid valve Assy Assy.. to the c cylinder ylinder..

15

Attach Attach the h high igh pressure pressure hose an and d retu return rn hose to the new sole solenoid noid va valve. lve.

16

Connect Connect the power wire c connect onnecter er and cover it wit with h oil–proof oil–proof tube.

17

Adjust the fl flow ow adjuster adjuster b by y turning turning it fully C CW W and then then tw two o full tturns urns C CCW CW.. Tighten the set nut.

18

Tighten Tighten a allll nuts nuts and retie any ttie ie wra wraps ps which which hav have e been remov removed. ed.

ELBOW JOINT

ELBOW JOINT

FLOW CONTROL VALVE VALVE

OLD SOLENOID VALVE VALVE

FLOW ADJUSTER SET NUT ELBOW JOINT

ELBOW JOINT

NEW SOLENOID VALVE

POWER LINE CONNECTOR

FLOW CONTROL VALVE VALVE

OIL–PROOF TUBE

TABLE SOLENOID REPLACEMENT(2129563 or 2129564) ILLUSTRATION ILLUSTRA TION 2–17

2–20

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 14

2-6

2124012

TABL ABLE E SOLEN SOLENOID OID VALVE ALVE (Con (Contin tinued ued))

19

Loosen Loosen the adjust adjuster er of the sup support port to tool ol and caref carefully ully rem remove ove the sup support port to tool ol from und under er the tab table. le.

20

Power ON the ”Table ”Table T Tilt” ilt” switch on th the e rear Gantry base.

CAUTION Crash hazard. Do NOT Do NOT power the table upwards after replacing the magnetic flow valve until it has been lowered first; this will feed unwanted air into the valve. 21

Lower the ttable able a and nd ver verify ify that that all all mov movement ement is sm smooth ooth and no normal. rmal.

22

Move the the table up up and verify verify that that it is ope operatin rating g norma normally lly.. If there there is a sh shortag ortage e of oil (t (the he table will will not rise rise to its normal limit), then add more oil as described in Section 2-11–1 2-11–1   Table Pump Minor Lubrication of Lubrication of this manual.

23

Move the the tab table le up and and down a few ttimes imes to to remove remove air from the sy system. stem. SUPPORT TOOL SUPPORT T OOL (Z9817EB)

GANTRY

BOLTS BOL TS (2)

SUPPORT  TOOL SUPPORT T OOL (Z9817EB) É

ADJUSTER (U0116AE) É

(FRONT VIEW)

É

É

É

É

É

É

É

É

É

É

É

É

(SIDE VIEW)

(SIDE VIEW) TABLE SUPPORT TABLE  SUPPORT TOOL (2129563 or 2129564) ILLUSTRATION ILLUSTRA TION 2–18

2–21

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 14

2-6

TABL ABLE E SOLEN SOLENOID OID VALVE ALVE (Con (Contin tinued ued))

24

In Inst stall all the the c cra radl dle e tra tray y.

25

In Inst stal alll the the cr crad adle le..

26

In Inst stall all the the si side de tab table le cov cover ers. s.

27

2124012

END

TABLE (2129563 or 2129564) TABLE ILLUSTRATION ILLUSTRA TION 2–19

2–22

TABLE / GANTRY

 

GE MEDICAL SYSTEMS

CT PROSPEED SERIES COMPONENT REPLACEMENT

REV 14

2-7

2124012

PRESSURE PRESSURE RELIEF (SPEED CONTROL) VALVE ALVE (FOR TABLE P9185AB/AF/ P9185AB/AF/AG AG ONLY) ONLY)

Special Equipment  Pressure Relief Valve  Oil (Z9807QD)  Sealing Tape (PTFE)  Tie wraps  Kim Wipe

END  ; Understand and follow follow the Safety Guidelines Manual.

1

Proceed until step

2

Move Move the the ta table ble to iits ts h highe ighest st posi positio tion n to acc access ess the rel relief ief val valve. ve.

3

Switch OFF the ”Rota ”Rotate”, te”, ”XG”, and ”Table ”Table Tilt” Tilt” switch switches es on the rear Gantry Gantry base. base.

4

Remove Remove the right right and lef leftt s side ide tab table le cov covers ers.. Ref Refer er to sec sectio tion n 2-2 SIDE COVERS. COVERS.

5

Drain all the oil from the relief valve by loosening the set set nut and then fully tightening the flow adjuster CW by hand. The flow adjuster is located on the the vertical surface of the solenoid valve as shown in illustration 2–13 . 2–13 .

6

Remove the drain relief hose by loosening the elbow joint hose nut from the drain hose (see hose (see illustration 2–13).

7

Remove Remove tthe he relie relieff valve valve by rota rotatin ting g it abo about ut tthe he c cent enter er jjoin oint. t.

8

Remove Remove the elbow joint from the ol old d reli relief ef valve valve an and d attach attach it to the the new relief valve using sealing sealing tap tape. e. Note When wrapping sealing tape around end joints, wrap the tape in the opposite direction of the threads (about one and a half turns).

9

Instal Installl th the e new rel relief ief v valve alve to tthe he ce cente nterr joi joint nt u using sing sea sealing ling tape. tape.

10

Attach Attach the the drain drain reli relief ef ho hose se to the n new ew re relief lief valve. valve.

11

Adjust the fl flow ow adjuster adjuster b by y turning turning it fully C CW W and then then tw two o full tturns urns C CCW CW.. Tighten the set nut.

12

Move the ttable able up and down a and nd ve verify rify that all mo movemen vementt is smooth smooth and norma normal. l.

13

Re Retu turn rn tthe he side side tabl table e cove covers rs..

14

END

2–23

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 14

22-8 8

2124012

TAB ABLE LE HYDRA HYDRAULI ULIC C CYLIN CYLINDER DER

Special Equipment  Table Hydraulic Cylinder  Oil (Z9807QD)  Sealing Tape (PTFE)  Tie wraps  Kim Wipe

WARNING! CRASH HAZARD! DO NOT REMOVE THE CYLINDER WITHOUT REMOVING THE UPPER STRUCTURAL SUPPORT, UPPER SUPPORT SUPPORT,, AND U–COLUMN FIRST FIRST..

 Table P9185AB/AF/AG

END  ; Understand and follow follow the Safety Guidelines Manual.

1

Proceed until step

2

Switch OFF th the e ”XG” and ”Rotate ”Rotate”” switches, switches, and sw switch itch O ON N the ”Table/T ”Table/Tilt” ilt” switch on th the e Gant Gantry ry re rear ar ba base. se.

3

Move Move th the e Tab Table le to its its high highes estt p pos osit ition ion.. Note If the maximum height can not be achieved then it will be more dif ficult to lubricate the pump following replacement of the cylinder. The maximum height is approximately 1000 mm measured from the table frame to the lowest point of the cradle top surface

4

Remove Remove the fro front nt and rea rearr bottom bottom tab table le cov covers ers.. Refer Refer to sec sectio tion n 2-1, BOTTOM COVERS. COVERS.

5

Remove Remove tthe he table table u uppe pperr str struct uctura urall frame frame and and suppor supportt as outl outline ined d in se secti ction on 2-9–1, Table Upper Struct Structural ural Frame And Support Removal. Removal.

2–24

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 14 22-8 8

2124012 TABLE ABLE HYDR HYDRAU AULI LIC C CYLI CYLIND NDER ER (C (Con onti tinu nued ed))

6

Disengage Disengage the the upper upper blocks blocks from the U U–colum –column n by unscr unscrewing ewing the s six ix su support pport bolts (see illustr illustration ation 2–20) 2–20)..

7

Remove Remove the upp upper er shaf shaftt a and nd uppe upperr bl block ocks s from from the rod end. end.

8

Measure Measure the distan distance ce betwee between n the the rod rod e end nd a and nd tthe he rrod od base, base, distan distance ce ””B” B” iin n ill illustra ustration tion 2–21.

9

Adjust Adjust the new rod to the the s same ame distan distance, ce, ”B” ”B”,, as the old rod rod..

10

Remove Remove the oil return return hose from from tthe he hyd hydraulic raulic cylinder cylinder.. Refer to illu illustra stration tion 2 2–21. –21.

UPPER BLOCK

ROD END

UPPER SHAFT

HEX BOLTS (6)

CYLINDER

U–COLUMN

CYLINDER/U–COLUMN REMOVAL REMOVAL ILLUSTRATION ILLUSTRA TION 2–20

2–25

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 14

2-8

2124012

TABL ABLE E HYDRA HYDRAULIC ULIC CYLINDE CYLINDER R ((Con Contin tinued ued))

ROD END



A AIR BREATHER

INPUT HOSE OIL RETURN HOSE

SET NUT END JOINT T–JOINT

SAFETY FUSE CHECK VALVE SET NUT

TABLE PUMP LUBRICATION LUBRICATION HYDRAULIC CYLINDER AIR BREATHER BREATHER TION 2–21 ILLUSTRATION ILLUSTRA

11

Loosen Loosen tthe he set set nut nut an and d re remov move e the the inp input ut hose hose..

12

Loosen Loosen the se sett nut and and remove remove the emer emergency gency h hose ose fr from om the check valve.

13

Remove the safety fuse, check valve and piping from the old cylinder at the joint closest to the cylinder and attach them as an assembly to the new hydraulic cylinder.

14

Remove Remove the sm small all metal metal hole gua guard rd from from the inside inside of th the e lower rright ight su support pport.. Refer tto o illust illustratio ration n 2–22.

15

Remove Remove the lower shaft and s slide lide it out of of the expose exposed d side hole.

HOLE GUARD HOLE  GUARD

METAL HOLE GUARD METAL ILLUSTRATION ILLUSTRA TION 2–22

2–26

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 14

2-8

2124012

TABL ABLE E HYDRA HYDRAULIC ULIC CYLINDE CYLINDER R ((Con Contin tinued ued))

16

Remove Remove tthe he rod rod and and the the cyl cylind inder er ttoge ogethe therr.

17

Instal Installl the ne new w rod and and cylinde cylinderr usin using g the lo lower wer shaft shaft..

18

Tight Tighten en the low lower er shaft shaft into into p plac lace. e.

19

Return Return the hole guard guard to th the e side support support and screw it int into o plac place. e.

20

Verify that all piping and hosing is in the proper configuration and will not catch. In In particular  particular,, the check check valve must be must  be parallel to the cylinder, cylinder, and the input hose should be at at an angle of approximately 30 to the cylinder. cylinder. Refer to illustration 2–27.

21

Add oil oil to the the pum pump p by refer referrin ring g to the ffollo ollowin wing g sect section ion;; Ini Initia tiall T Tabl able e He Heigh ightt Pr Prior ior to Repla Replacem cement ent

Refer Refer to to Secti Section on

Maximum (fully extended)

2-11–2, Table Table Pump Major Lubrication. Lubrication . When the be1.2 procedures into theconducting pump should liters. the initial amount of oil poured

Less than Maximum

2-11–2, Table Table Pump Major Lubrication. Lubrication . When oiling the pump, the initial amount of oil poured into the pump should be should  be approximately 50 milliliters for every 10 mm that the rod could not be extended (for every 10mm below the 255 mm maximum rod extension ”A” in illustration 2–21 ).

22

Install Install the the cylin cylinder der tto o the U–column U–column usin using g the six support support bolts, the upper upper shaft shaft,, and th the e uppe upperr bloc blocks. ks.

23

Install the table upper structural frame and support as outlined in section 2-9–2,  Table Upper Structural Frame And Support. Support.

24

Instal Installl the ffron rontt and rear rear b bott ottom om ta table ble cove covers. rs.

25

END

2–27

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 14

2-8

2124012

TABL ABLE E HYDRA HYDRAULIC ULIC CYLINDE CYLINDER R ((Con Contin tinued ued))

 Table 2129562/3/4:

END  ; Understand and follow follow the Safety Guidelines Manual.

1

Proceed until step

2

Switch OFF th the e ”XG” and ”Rotate ”Rotate”” switches, switches, and sw switch itch O ON N the ”Table/T ”Table/Tilt” ilt” switch on th the e Gant Gantry ry re rear ar ba base. se.

Rotate

3

XG Table/Tilt Control Safety Loop

Slip Ring 115V DAS/DET

Move Move th the e Tab Table le to its its high highes estt p pos osit ition ion.. Note If the maximum height can not be achieved then it will be more dif ficult to lubricate the pump following replacement of the cylinder cylinder.. The maximum height is approximately 950 mm measured from the table frame to the lowest point of the cradles top surface

4

Remove the front front and rear bottom table covers. Refer to section 2-1, BOTTOM COVERS,   of the Table/Gantry tab of this manual.

5

Remove Remove tthe he table table u uppe pperr str struct uctura urall frame frame and and suppor supportt as outl outline ined d in se secti ction on 2-9–1, Table Upper Struct Structural ural Frame And Support Removal of this manual.

2–28

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GE MEDICAL SYSTEMS REV 14

2-8

2124012

TABL ABLE E HYDRA HYDRAULIC ULIC CYLINDE CYLINDER R ((Con Contin tinued ued))

6

Disengage Disengage the the upper upper blocks blocks from the U U–colum –column n by unscr unscrewing ewing the s six ix su support pport bolts (see illustr illustration ation 2–23) 2–23)..

7

Remove Remove tthe he upper upper shaf shaft, t, up upper per b bloc locks, ks, a and nd oi oil–le l–less ss washe washers rs fr from om the the rod end. end.

UPPER BLOCK

OIL–LESS WASHER

ROD END UPPER SHAFT OIL–LESS WASHER HEX BOLTS (6)

CYLINDER

U–COLUMN

CYLINDER/U–COLUMN REMOVAL REMOVAL ILLUSTRATION ILLUSTRA TION 2–23

2–29

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GE MEDICAL SYSTEMS REV 14

2-8

2124012

TABL ABLE E HYDRA HYDRAULIC ULIC CYLINDE CYLINDER R ((Con Contin tinued ued))

8

Remove Remove tthe he oil oil return return h hose ose ffrom rom tthe he hy hydra draulic ulic cyli cylinde nderr. Ref Refer er to illustr illustrati ation on 2– 2–24. 24.

9

Re Remo move ve the the sol solen enoi oid d val valve ve from from the the c cyli ylind nder er.. Refer to section 2-6 TABLE SOLENOID VALVE 

Table : 2129562/3/4

10

Remove Remove tthe he flow flow contr control ol va valve lve ffrom rom tthe he old c cyli ylinde nderr

11

Attach Attach the flow contr control ol valve valve to the n new ew cyl cylinder inder using sealing tape.

12

Attach Attach the sol soleno enoid id valv valve e to the cyl cylind inder er.. Refer to section 2-6 TABLE SOLENOID VALVE 

13

Table : 2129562/3/4.

Attach Attach the the retur return n hos hose e to the the hyd hydrau raulic lic cylin cylinder der.. See Illustration 2–24.

SOLENOID VALVE VALVE HIGH PRESSURE HOSE RETURN HOSE FLOW CONTROL VALVE VALVE

CYLINDER

A ROD END



: REMOVE OR ATTACH

TABLE PUMP LUBRICATION LUBRICATION HYDRAULIC CYLINDER AIR BREATHER BREATHER ILLUSTRATION ILLUSTRA TION 2–24

2–30

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 14

2-8

2124012

TABL ABLE E HYDRA HYDRAULIC ULIC CYLINDE CYLINDER R ((Con Contin tinued ued))

14

Remove Remove the s small mall m metal etal hole hole guar guard d from the inside inside of tthe he lowe lowerr right suppor support. t. See Illustration 2–25.

15

Remove Remove the lower shaft and s slide lide it out of of the expose exposed d side hole. See Illustration 2–25.

16

Remove Remove tthe he rod rod and and the the cyl cylind inder er ttoge ogethe therr.

17

Measure Measure th the e distance distance ””B” B” : between between tthe he ro rod d end and tthe he ro rod d base of th the e old cylind cylinder er.. See Illustration 2–25.

18

Adjust the n new ew rod to the the sam same e dist distance, ance, ”B”, as the the old rod.

19

Instal Installl the ne new w rod and and cylinde cylinderr usin using g the lo lower wer shaft shaft..

20

Tight Tighten en the low lower er shaft shaft into into p plac lace. e.

21

Return Return the hole guard guard to th the e side support support and screw it int into o plac place. e.

RIGHT SIDE VIEW

FRONT VIEW

LOWER SHAFT

HOLE GUARD HOLE  GUARD

CYLINDER ROD END LOWER SHAFT

CYLINDER

A ROD END



METAL HOLE METAL  HOLE GUARD AND LOWER SHAFT ILLUSTRATION ILLUSTRA TION 2–25

2–31

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GE MEDICAL SYSTEMS REV 14

2-8

2124012

TABL ABLE E HYDRA HYDRAULIC ULIC CYLINDE CYLINDER R ((Con Contin tinued ued))

22

Ve Verify rify that that all piping piping and hosing hosing is in the pro proper per configura configuration tion and and will not c catch. atch.

23

Add oil oil to the the pum pump p by refer referrin ring g to the ffollo ollowin wing g sect section ion;;

24

Ini Initia tiall T Tabl able e He Heigh ightt Pr Prior ior to Repla Replacem cement ent

Refer Refer to to Secti Section on

Maximum (fully extended)

2-11–2, Table Table Pump Major Lubrication of Lubrication  of this manual. When conducting the procedures the initial amount of oil poured into the pump should be1.2 liters.

Less than Maximum

2-11–2, Table Table Pump Major Lubrication of Lubrication  of this manual. When oiling the pump, the initial amount of oil poured into the pump should be should  be approximately 50 milliliters for every 10 mm that the rod could not be extended (for every 10mm below the 255 mm maximum rod extension ”A” in illustration 2–24 ).

Install the cylinder to the U–column U–column using the s six ix support bolts, the upper shaft, the upper blocks, blocks, and oil–less washers. See Illustration 2–23. Note Install the oil–less washer with its platic surface facing to the cylinder. Plastic Surface

Cylinder

25

Install the table upper structural frame and support as outlined in section 2-9–2,  Table Upper Structural Frame And Support of this manual.

26

Instal Installl the ffron rontt and rear rear b bott ottom om ta table ble cove covers. rs.

27

Switch ON the ”XG”, ”Rotate”, ”Rotate”, and ”Table/T ”Table/Tilt” ilt” s switche witches. s. Rotate

XG Table/Tilt

Slip Ring

Control Safety Loop

115V DAS/DET

END

28

2–32

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CT PROSPEED SERIES COMPONENT REPLACEMENT

REV 14

2-9

2124012

TABL ABLE E UPPER UPPER STRUCTU STRUCTURAL RAL FRAME FRAME AND AND SUPPO SUPPORT RT

Special Equipment  Tie wraps

2- 9–1

Removal END  ; Understand and follow follow the Safety Guidelines Manual.

1

Proceed until step

2

Switch OFF th the e ”XG” and and ”Ro ”Rotate” tate” switc switches, hes, and and swit switch ch ON the the ”T ”Table/T able/Tilt” ilt” sw switch itch on the Ga Gantry ntry rrear ear ba base. se.

3

Move Move th the e Tab Table le to its its high highes estt p pos osit ition ion..

4

Move Move the crad cradle le OUT to to its full fully y ret retrac racted ted p posi ositio tion n (fa (farth rthest est ffrom rom Gant Gantry) ry)..

5

Switch Switch OFF the ”Table ”Table/T /Tilt ilt”” sw switc itch h on the rea rearr base base of of the the Ga Gantr ntry y.

6

Remove Remove the right right and lef leftt s side ide tab table le cov covers ers.. Ref Refer er to sec sectio tion n 2-2 SIDE COVERS. COVERS.

7

Remo Remove ve the the Cr Crad adle le.. Re Refe ferr to sect sectio ion n 2-3 CRADLE. CRADLE.

8

Remo Remove ve the the cra cradl dle e tra tray y (4 (4 s scr crew ews) s).. Note It may be necessary to lower the table to gain access to one of the height potentiometer coupling screws.   If this is done then be su screws. sure re to return the table to its hig highest hest position, and return the Gantry ”T ”Table/Tilt” able/Tilt” switch to the OFF position.

9

Loosen the two coupling set screws from the height potentiometer. potentiometer. The height potentiom potentiometer eter is shown in illustration 2–10.

10

Loosen Loosen the ttwo wo lower couplin coupling g set s screws crews from the cr cradle adle potentio potentiomete meter. r. The cra cradle dle potentiom potentiometer eter is shown in illustrations 2–7 and 2–8.

11

Remove Remove the cradle cradle potentiome potentiometer ter as assy sy together together with it its s brac bracket ket by remov removing ing its two sup support port s screws crews..

12

Remove Remove the height p potent otentiomet iometer er assy tog together ether wit with h its suppor supportt bracke brackett by unscr unscrewing ewing the tw two o bracket bracket bolts.

13

Disconnect Disconnect al alll wires leading leading from from the u upper pper ta table ble frame frame down through through the tab table le U–col U–column. umn. Cut any tie tie wraps so that all wires which could obstruct the removal of the upper frame are totally free (illustration 2–26). Note Label any ground or other wires that are disconnected to aid in proper reinstallation.

2–33

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GE MEDICAL SYSTEMS REV 14 22-9– 9–1 1

2124012 Re Remo mova vall (c (con onti tinu nued ed))

14  TABLE P9185AB/AF/AG a. Unsc Unscrrew the two screws holding the electro–magnetic solenoid to the rear of the table frame. Refer to illustration 2–26.  TABLE 2129562/3/4

a. Remove the table oil pump. Refer to section 2-12, TABLE OIL PUMP of the Table/Gantry tab of this manual. GANTRY

UPPER STRUCTURAL FRAME

TIE WRAPS

SCREWS (2) SCREWS  (2) WIRES

SOLENOID SUPPORT SCREWS (4 PER SIDE)

UPPER SUPPORT

U – COLUMN TABLE UPPER STRUCTURAL FRAME SUPPORT ILLUSTRATION ILLUSTRA TION 2–26

15

Remove Remove the four support support screw screws s from e each ach side of the up upper per str structur uctural al fram frame e (see illustr illustration ation 2–26). 2–26). During installation note that only the right side bolts use slotted holes and therefore require washers.

CAUTION Crash hazard. The upper The upper structural frame is very heavy. heavy. It must be must be handled or lowered by a minimum of four people.

CAUTION Motor damage. Do not rest the structural frame on the cradle motor. motor. Brace the front of the structural frame so that the motor and other components do not touch the floor! 16

Lower Lower th the e Upper Upper Struct Structure ure tto o the gr groun ound d car carefu efully lly..

CAUTION When removing the upper supports, the U–column must be supported by a third person!

17

Remove the upper supports while supporting the U column; remove the back cross support and disengage the upper supports from the U–column bearing pivots. END

18

2–34

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CT PROSPEED SERIES COMPONENT REPLACEMENT

REV 14 22-9– 9–2 2

2124012 In Inst stal alla lattio ion n END  ; Understand and follow follow the Safety Guidelines Manual.

1

Proceed until step

2

To remount the upper structural frame first perform steps 17 through 11 of section 2-9–1 Table Upper Structural Frame And Frame special pecial care that that all hoses are free from catching  And Support Removal in their reverse order, but take s on any internal components or frames.

3

Adjust  the cradle potentiometer potentiomete r resistance by performing steps 11, 12,13, 18, and 19 of section 2-4 CRADLE POTENTIOMETER.   Do not feed the cable connector up through the table. POTENTIOMETER.

4

Adjust Adjust the hei height ght pot potent entiom iomete eterr res resist istanc ance eb by y per perfor formin ming gs step teps s 10., 10., 11., 18., and19. of section 2-5 HEIGHT POTENTIOMETER. Do POTENTIOMETER.  Do not feed the cable connector up through the table.

5

Reinstall Reinstall the TABLE BOARD BOARD ASSY protective protective cover (4 sc screws) rews) removed removed to perfo perform rm th the e potentiom potentiometer eter resistance adjustments.

6

Perform Perform the Elevat Elevation ion Funct Function ion Check. (Refe (Referr to to F Functio unctional nal Check & Adjustm Adjustment, ent, Table, Elevat Elevation ion Functi Function, on, Table Height.)

7

Perform the Longitudinal Function Check. Check. (Refer to Functional Check & Adju Adjustment, stment, T Table, able, Longitudinal FuncFunction, Cradle Absolute Position.)

8

In Inst stal alll the the cr crad adle le tray tray (4 scre screws ws). ).

9

In Inst stal alll the the Crad Cradle le.. Refe Referr to sect sectio ion n 2-3 CRADLE. CRADLE.

10

Install Install the the right right and left side table covers covers.. Refer to s section ection 2-2 SIDE COVERS. COVERS.

11

END

2–35

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CT PROSPEED SERIES COMPONENT REPLACEMENT

REV 14

2124012

2-10 TABLE PUMP SAFETY FUSE FUSE (FOR T TABLE ABLE P9185AB P9185AB/AF/AG /AF/AG ONLY) ONLY) Special Equipment  Table Pump Safety Fuse  Oil (Z9807QD)  Sealing Tape (PTFE)  Tie wraps  Kim Wipe

END  ; Understand and follow follow the Safety Guidelines Manual.

1

Proceed until step

2

Switch OFF th the e ”XG” and ”Rotate ”Rotate”” switches, switches, and sw switch itch O ON N the ”Table/T ”Table/Tilt” ilt” switch on th the e Gant Gantry ry re rear ar ba base. se.

3

Se Sett the the Table able to its its h hig ighe hest st posit positio ion. n.

4

Move Move the crad cradle le OUT to to its full fully y ret retrac racted ted p posi ositio tion n (fa (farth rthest est ffrom rom Gant Gantry) ry)..

5

Switch Switch OFF the ”Table ”Table/T /Tilt ilt”” sw switc itch h on the rea rearr base base of of the the Ga Gantr ntry y.

6

Remove Remove the right right and lef leftt s side ide tab table le cov covers ers.. Ref Refer er to sec sectio tion n 2-2 SIDE COVERS. COVERS.

7

Remo Remove ve the the Cr Crad adle le.. Re Refe ferr to sect sectio ion n 2-3 CRADLE. CRADLE.

8

Remo Remove ve the the cra cradl dle e tra tray y (4 (4 s scr crew ews) s)..

9

Remove Remove the fro front nt and rea rearr bottom bottom tab table le cov covers ers.. Refer Refer to sec sectio tion n 2-1, BOTTOM COVERS. COVERS.

10

Remove the top structural frame and support per section 2-9–1 Upper Structural Frame And Support RemovRemoval al..

11

Unscrew Unscrew the hig high h pressure pressure input input ho hose se fr from om the safet safety y fuse (see ilillustr lustration ation 2–27) 2–27)

12

cylinder. Refer to illustration Remove the safety fuse from the T–joint while holding the check valve parallel to the cylinder. 2–27.

13

Transfer the end joint from the old safety fuse to the new one using sealing tape around the end leading into the safety fuse. Wrap the tape one and a half times in the opposite direction to the the joint thread.

14

Attach Attach th the e hig high h pressur pressure e inpu inputt ho hose se tto o th the e new safety safety fu fuse. se.

15

Verify that all piping and hosing is in the proper configuration and will not catch. In In particular  particular,, the check check valve must be must  be parallel to the cylinder, cylinder, and the input hose should be at at an angle of approximately 30 to the cylinder. cylinder.

Refer to illustration 2–27.

2–36

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 14

2124012

2-10 TABLE PUMP SAFETY FUSE (FOR T TABLE ABLE P9185AB/AF/AG ONLY) ONLY) (Continued) 16

Install Install the the top top struct structural ural fram frame e and suppor supportt pe perr section section 2-9–2 Table Upper Structural Frame And Support Installation.. Installation

17

Move the the table up up and verify verify that that it is ope operatin rating g norma normally lly.. If there there is a sh shortag ortage e of oil (t (the he table will will not rrise ise to its normal limit), then add more oil as described in Section 2-11–1 2-11–1  Table Pump Minor Lubrication Lubrication..

18

Move the the table up and down down repeat repeatedly edly and ver verify ify that th the e hosing doe does s not catc catch h (snare (snare)) or pull exce excessivel ssively y.

19

Re Rein inst stall all the the cr crad adle le ttra ray y.

20

In Inst stal alll the the Crad Cradle le..

21

Instal Installl th the e bo botto ttom m and and si side de tabl table e co cover vers. s.

22

END

SAFETY FUSE ~30

CHECK VALVE U–COLUMN

INPUT HOSE HYDRAULIC END JOINT

SAFETY FUSE CHECK VALVE

NO INTERFERENCE NO INTERFERENCE (CATCHING)

T–JOINT

CYLINDER

TABLE CYLINDER/PIPING CONFIGURATION CONFIGURATION ILLUSTRATION ILLUSTRA TION 2–27

2–37

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 14

2124012

2-11 2-1 1 TABLE PUMP (FILLING) (FILLING) LUBRI LUBRICA CATION TION 2-11–1 Table Pump (Filling) Minor Lubrication Special Equipment  Oil (Z9807QD)  Sealing Tape (PTFE)  Kim Wipe

Note This procedure is to be used for adding small amounts of oil to the pump only (no more than 0.15 liters). Use the instru instructions ctions in the following section, 2-11–2 Table Pump Major Lubrication, for the addition the  addition of larger amounts of oil such as those needed after replacing the hydraulic cylinder, or after replacing the pump while the table height is below maximum. END  ; Understand and follow follow the Safety Guidelines Manual.

1

Proceed until step

2

Switch OFF th the e ”XG” and ”Rotate ”Rotate”” switches, switches, and sw switch itch O ON N the ”Table/T ”Table/Tilt” ilt” switch on th the e Gant Gantry ry re rear ar ba base. se.

3

Move Move th the e Tab Table le to its its high highes estt p pos osit ition ion..

4 

For TABLE P9185AB/AF/AG:

a. Remove Remove th the e fr front ont and rrear ear bottom bottom table table c covers overs.. Refer to s section ection 2-1, BOTTOM COVERS. COVERS. 

For TABLE 2129562/3/4:

a. Remove Remove the Cradle Cradle.. Refer to section section 2-3 CRADLE of the Table/Gantry tab of this manual. b. Remove Remove the cradl cradle e tray (4 screw screws) s) . FOR TABLE

FOR TABLE

P9185AB/AF/AG

2129562/3/4

TABLE OIL PUMP

TABLE OIL PUMP LOCATION LOCATION ILLUSTRATION ILLUSTRA TION 2–28

2–38

TABLE / GANTRY

 

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GE MEDICAL SYSTEMS REV 14

2124012

2-11–1 Table Pump (Filling) Minor Lubrication Lubrication (Continued) 5

Remove Remove the small air es escape cape s screw crew and th the e lar larger ger po pouring uring mouth mouth screw screw fro from m the pump (Illus (Illustrat tration ion 2–29 2–29 ).

6

Pour Pour th the e estima estimated ted req requir uired ed a amou mount nt o off oi oill int into o the the pum pump; p; not mor more e than than 0. 0.15 15 liter liters. s.

7

Lower the table and watch the pump to see if excess oil spills out of the pump. If oil leaks out of the pump holes then continue to lower the table slowly while wiping up any oil which spills out of the pump.

8

Verify that the table can rise to its maximum height of approximately 1000 mm measured from the table frame to the lowest point of the cradle top top surface, and that all movement is smooth a and nd normal.

9

Return the small air escape screw and the larger pouring mouth mouth screw using sealing tape. Wrap the sealing tape about one and a half times in the opposite direction of the threads.

10  For TABLE P9185AB/AF/AG: Install the bottom front and rear table covers.  For TABLE 2129562/3/4: Install the cradle tray and cradle. 11

END

POURING MOUTH POURING MOUTH  (LARGE)

AIR ESCAPE SCREW  (SMALL)

OIL PUMP ILLUSTRATION ILLUSTRA TION 2–29

2–39

TABLE / GANTRY

 

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GE MEDICAL SYSTEMS REV 14

2124012

2-11–2 Table Pump (Filling) Major Lubrication Special Equipment  Oil (Z9807QD)  Sealing Tape (PTFE)  Tie wraps  Kim Wipe

WARNING! CRASH   HAZARD! DO NOT USE THE HYDRAULIC CYLINDER AIR ESCAPE HOLE WITHOUT CRASH REMOVING THE UPPER STRUCTURAL FRAME, AND UPPER SUPPORTS FIRST. Note This procedure is for the addition of amounts of oil such as those needed after replacing the hydraulic cylinder, or after replacing the pump while the table height is below maximum.For maximum.For adding small amounts of oil to the pump refer to section 2-11–1 Table Table Pump Minor Lubrication.



For TABLE P9185AB/AF/AG:

1

Proceed until step

2

Switch OFF th the e ”XG” and ”Rotate ”Rotate”” switches, switches, and sw switch itch O ON N the ”Table/T ”Table/Tilt” ilt” switch on th the e Gant Gantry ry re rear ar ba base. se.

3

Move Move th the e Tab Table le to to a as s high high a posi positi tion on as poss possibl ible. e.

4

Switch Switch OFF tthe he ””T Table/T able/Tilt” ilt” swi switch tch on tthe he G Gant antry ry rrear ear base. base.

5

Remove Remove the fro front nt and rea rearr bottom bottom tab table le cov covers ers.. Refer Refer to sec sectio tion n 2-1, BOTTOM COVERS. COVERS.

6

Remove the Upper support and upper structural frame per section 2-9–1, Table Upper Structural Frame And Support Removal. Removal.

7

Disengage the upper blocks from the U–column by supporting the column and unscrewing the six support bolts (see illustration 2–20).

8

Remove Remove the small air es escape cape s screw crew and th the e larg larger er pouring pouring mouth screw from the p pump ump ((Illust Illustratio ration n 2–29 2–29). ).

END  ; Understand and follow follow the Safety Guidelines Manual.

9

Pour Pour the the esti estimat mated ed rrequ equire ired, d, lost lost,, am amoun ountt of oil iinto nto the pum pump. p. Note The total pump capacity is 1.22 liters and the total table system capacity is 1.35 liters.

2–40

TABLE / GANTRY

 

CT PROSPEED SERIES COMPONENT REPLACEMENT

GE MEDICAL SYSTEMS REV 14

2124012

2-11–2 Table Pump (Filling) Major Lubrication (Continued) (Continued) 10

Retract the cylinder rod, use the down button and push down on the rod, while watching the pump to see if excess oil oil spills  spills out of the pump. If oil leaks out of the pump holes then continue to lower the table slowly while wiping up any oil which spills out of the pump.

11

Open the air breather and let the air in the cylinder bleed out. The sound of air escaping from the air breather can be heard. Note When   operating the pump to release air through the air breather, keep the air breather closed while When lowering the table. Only open the air breather while raising (extending the cylinder rod) the table.

12

With the the air breather breather open, open, operat operate e the p pump ump tto o fully extend extend the c cylinde ylinderr rod. Air should should es escape cape ffrom rom tthe he air breather.   In the fully extended breather. extended position the cylinder to rod ba base se distance distance,, ”A” in illustration 2–30, 2–30, should be apapproximately 255 mm. If maximum extension can not be obtained then add more oil to the pump.

13

Close the air breather and use the pump to fully retr retract act the cylinder cylinder rod; push the table table down button. button. In the fully retracted position the cylinder to rod base distance, ”A” in illustration 2–30, should be approximately 0.5mm.

AIR BREATHER ROD END

OIL RETURN HOSE

A Minimum 0.5 mm Maximum 255mm

HYDRAULIC CYLINDER ILLUSTRATION ILLUSTRA TION 2–30

14

Continue Continue to rrepeat epeat steps 12 and 13 unt untilil no air is left in the cylind cylinder er or o oilil hose hoses. s.

15

Install Install the upper upper blocks to tthe he U–colu U–column mn and verify verify that all ho hoses ses are fr free ee from ca catchin tching g on anythin anything. g.

16

Install Install the the Uppe Upperr support support and and upper upper st structu ructural ral fframe rame per s section ection 2-9–2, Table Upper Structural Frame And Support Installation. Installation.

17

Move the the tab table le up and and down and and ensu ensure re th that at it is opera operating ting s smooth moothly ly..

18

Verify that the table can rise to its maximum height of approximately 1000 mm measured from the table frame to the lowest point of the cradle top surface.

2–41

TABLE / GANTRY

 

GE MEDICAL SYSTEMS

CT PROSPEED SERIES COMPONENT REPLACEMENT

REV 14

2124012

2-11–2 Table Pump (Filling) Major Lubrication (Continued) (Continued) 19

Return the small air escape screw and the larger pouring mouth mouth screw using sealing tape. Wrap the sealing tape about one and a half times in the opposite direction of the threads.

20

Install Install the cradle, cradle, crad cradle le tray tray, and the the side and bot bottom tom ttable able co covers. vers.

21

END



For TABLE 2129562/3/4:

1

Proceed until step

2

Remo Remove ve the the Cr Crad adle le.. Re Refe ferr to sect sectio ion n 2-3 CRADLE of the Table/Gantry tab of this manual.

3

Remo Remove ve the the cr crad adle le tray tray (4 scre screws ws)) .

4

Move Move th the e Tab Table le to its its low lowes estt p pos osit itio ion. n.

5

Remove Remove the small air es escape cape s screw crew and th the e larg larger er pouring pouring mouth screw from the p pump ump ((Illust Illustratio ration n 2–29 2–29). ).

6

Pour Pour the the esti estimat mated ed rrequ equire ired, d, lost lost,, am amoun ountt of oil iinto nto the pum pump. p.

END  ; Understand and follow follow the Safety Guidelines Manual.

Note The total pump capacity is 1.22 liters and the total table system capacity is 1.35 liters. 7

Ve Verify rify that the ttable able c can an rise rise to its m maximum aximum height of ap approxi proximatel mately y 950 mm measur measured ed fr from om tthe he ta table ble fframe rame to the lowest point of the cradles top top surface, and that all movement is smooth and normal.

8

Contin Continue ue to repeat repeat step steps s 7 and 6 u unti ntill no ai airr is left left in the cylin cylinder der o orr oil h hose oses. s.

9

mouth screw using sealing tape. Wrap the sealing tape Return the small air escape screw and the larger pouring mouth

about one and a half times in the opposite direction of the threads. 10 11

Install Install the cradle, cradle, crad cradle le tray tray, and the the side and bot bottom tom ttable able co covers. vers. END

2–42

TABLE / GANTRY

 

GE MEDICAL SYSTEMS

CT PROSPEED SERIES COMPONENT REPLACEMENT

REV 14

2124012

2-12 2-1 2 TABLE ABLE OIL OIL PUMP PUMP Special Equipment  Table Oil Pump Assy  DVM (Digital Volt Meter)  Oil (Z9807QD)  Sealing Tape (PTFE)  Tie wraps  Kim Wipe

END  ; Understand and follow follow the Safety Guidelines Manual.

1

Proceed until step

2

Switch Switch OFF the ”XG ”XG”” an and d ”Rota ”Rotate” te” switch switches es a att the the Ga Gantr ntry y re rear ar b base ase..

3

Move Move the crad cradle le out to it its s ful fully ly re retra tracte cted d pos positi ition on (f (fart arthes hestt from from Ga Gantr ntry). y).

4

Ra Rais ise e tthe he Table able to its its h hig ighe hest st posi positi tion on.. Note If the maximum height can not be achieved  then it will be much more difficult difficult to lubricate the pump following replacement following  replacement of the table oil pump. The maximum heig height ht is approximately 1000 mm measured from the table frame to the lowest point of the cradles top surface

5

Switch Switch OFF tthe he T Table able/T /Tilt ilt swi switch tch at tthe he G Gant antry ry rrear ear base. base.

6 

For TABLE P9185AB/AF/AG:

a. Remove Remove the tab table le fron frontt and re rear ar bott bottom om cov covers. ers. Refer to Section 2-1 BOTTOM COVERS. The Table Table oil pump is in the position shown in Illustration 2–31. 

For TABLE 2129562/3/4:

a. Remove Remove the Cradle Cradle.. Refer to section section 2-3 CRADLE of the Table/Gantry tab of this manual. b. Remove Remove the cradl cradle e tray (4 screw screws) s) . 7

Discon Disconnec nectt the p powe owerr con connec nector tor ffrom rom the the oi oill pum pump p (se (see e illu illustr strati ation on 2– 2–31 31 ).

8

Disconnect Disconnect the 4–line 4–line connect connector or lea leading ding from from tthe he Gan Gantry try tto o the pump capacit capacitor or (see (see illustrat illustration ion 2– 2–31 31 ).

2–43

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2-12 TABLE OIL P PUMP UMP (Contin (Continued) ued) TABLE : P9185AB/AF/AG TABLE BOARD ASSY CAPACITOR CAPACITOR PLATE

OIL PUMP

GANTRY

TO UPPER CONNECTOR POWER CONNECTOR

TOP VIEW 4 LINE CONNECTOR

RED/WHITE WIRES BLACK/WHITE WIRES

Note For Table P9185AB/AF/AG ONLY ONLY: When you order a new table pump (2127320–3), the capacitor plate must plate  must be also replaced with a new one, which is shipped together with the pump. Install the new capacitor on the new plate using a M4 nut, then install them onto the table base using the two screws as shown. New Capacitor

New Capacitor Plate

2–44

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2124012

2-12 TABLE OIL P PUMP UMP (Contin (Continued) ued) FOR TABLE 2129562/3/4 TOP VIEW GANTRY

OIL PUMP

POWER   CONNECTOR POWER CONNECTOR

CAPACITOR VALVE CONNECTOR TABLE DRIVER 4 LINE CONNECTOR TABLE PUMP/CAPACIT PUMP/CAPACITOR OR CONNECTIONS ILLUSTRATION ILLUSTRA TION 2–31

2–45

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2124012

2-12 TABLE OIL P PUMP UMP (Contin (Continued) ued) 9

Measure Measure th the e resistanc resistance e ac across ross the term terminals inals of the the pump pump capaci capacitor tor using a DV DVM. M. If the the rresista esistance nce increa increases ses then the then  the capacitor should be functional. If the resistance is zero or infinite then the capacitor capacitor is melted down or shorted open, perform the procedures procedures outlined in section 2-13, TABLE PUMP CAPACITOR  before proceeding. CAPACITOR before Note If the capacitor is dead and therefore replaced in step 9, then perhaps the pump does not need to be replaced. Check to see if the pump is operational after replacing the capacitor.

10

Disconnect Disconnect the GND GND Cable from the Oi Oill Pump (see Illust Illustratio ration2–32 n2–32 ).

11

Remove Remove the cap capacitor acitor plate tto o gain bet better ter ac access cess to the the pump h hose ose nut nuts s and bas base e bolts.

12

nuts A, B, and C show shown n in illustra illustration tion 2–32. A small am amount ount of oil may leak out, this is acceptDisconnect hose nuts able.

13

Trans Transfer fer the the hose hose join joints ts fr from om th the e old pump pump to tthe he new o one. ne.

14

Remove Remove the p pump ump by unscrewing unscrewing tthe he fou fourr bolt bolts s holdin holding g it to the ta table ble bas base. e.

15

Instal Installl th the e new Oil pump pump using using the the 4 b base ase nut nuts. s.

16

Connect Connect the h hoses oses using using the the nut nuts s A, B, and C. Ve Verify rify tthat hat the the hose configu configuration ration is correct. correct. Refer to illus illustratration 2–32)

17

Connec Connectt th the e pow power er conne connecto ctorr to the new new oi oill pump. pump.

18

Connect Connect the 4–line connect connector or lead leading ing fr from om the Gantr Gantry y to the the pump capaci capacitor tor..

19

Connec Connectt the the G GND ND Cable Cable to tthe he n new ew Oi Oill Pu Pump. mp.

20

Attach Attach the the capac capacito itorr pl plate ate and and ca capac pacito itorr.

21

Add oil oil to the the pum pump p by refer referrin ring g to the ffollo ollowin wing g sect section ion;; Ini Initia tiall T Tabl able e He Heigh ightt Pr Prior ior to Repla Replacem cement ent

Refer Refer to to Secti Section on

Maximum (fully extended)

2-11–1, Table Table Pump Minor Lubrication. Lubrication . When oiling the pump, the initial amount of oil poured into the pump should be approximately 140 milliliters.

Less than Maximum

2-11–2, Table Table Pump Major Lubrication. Lubrication . When oiling the pump, the initial amount of oil poured into the pump should be should  be approximately 50 milliliters for every 10 mm that the rod could not be extended (for every 10mm below the 255 mm maximum rod extension ”A” in illustration 2–21 ).

22

Lower Lower th the e Tabl Table e to it its s low lower er lilimit mit p posi ositio tion. n.

23

Raise Raise tthe he T Tabl able e to iits ts highe highest st p posi ositio tion. n.

24

Repeat Step 22 and 23 a few times to remove any air in the Cylinder. Cylinder. Stop this procedure at the table’s table’s upper

limit position. 25 26

Instal Installl the the Table Bottom Bottom Cov Covers ers.. END

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2124012

2-12 TABLE OIL P PUMP UMP (Contin (Continued) ued)

POURING SCREW (LARGE SIZE)

AIR ESCAPE SCREW (SMALL SIZE) JOINT

NUT A NUT  A

NUT C

JOINT

NUT B SET NUT

GND CABLE POWER CABLES TO POWER CONNECTOR CONNECTOR TABLE OIL PUMP ILLUSTRATION 2–32 ILLUSTRATION

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2124012

2-13 TABLE PUMP CAP CAPACITOR ACITOR Special Equipment  Table Pump Capacitor Assy (with connectors)  Tie wraps

END  ; Understand and follow follow the Safety Guidelines Manual.

1

Proceed until step

2

Switch Switch OFF the ”XG ”XG”” an and d ”Rota ”Rotate” te” switch switches es a att the the Ga Gantr ntry y re rear ar b base ase..

3

Move Move the crad cradle le out to it its s ful fully ly re retra tracte cted d pos positi ition on (f (fart arthes hestt from from Ga Gantr ntry). y).

4

Ra Rais ise e tthe he Table able to its its h hig ighe hest st posi positi tion on..

5

Switch Switch OFF tthe he ””T Table/T able/Tilt” ilt” swi switch tch at tthe he Ga Gantr ntry y re rear ar b base ase..

6 

For TABLE P9185AB/AF/AG:

a. Remove Remove the rright ight a and nd left side ta table ble covers. covers. Refer to sec section tion 2-2 SIDE COVERS. COVERS. b. Remove Remove the Cradle Cradle.. Refer to section section 2-3 CRADLE. CRADLE. c. Remove Remove the cradl cradle e tray (4s (4screws) crews) tto o gain acces access s to the insid inside e of the U–col U–column. umn. d. Remove the table front and rear bottom covers. Refer to Section 2-1 BOTTOM COVERS. The pump capacicapacitor is in the position shown in Illustration 2–31. 

For TABLE 2129562/3/4:

a. Set the the cradle cradle to furthe furthest st IN position. position. b. Remove Remove the cradle tray (4scr (4screws) ews) . 7

Remove Remove the capacitor capacitor from the c capacit apacitor or plate plate b by y loo loosening sening the h holding olding screw. screw. Refer to ilillustr lustration ation 2–31.

8

Disconnect the red and white power line connector leading to the pump, its location is shown in illustration 2–31.

9

Discon Disconnec nectt the fo four ur line line connect connector or lea leadin ding g into tthe he Gan Gantry try from from tthe he pum pump p capa capacit citor or..

10  For TABLE 2129562/3/4 Only: Follow the black and white wires from the four wire connectors up through the table U column to where they meet their upper connector. This will require c cutting utting the ttie ie wraps leading up through the U–column. 11

Mount the new capac capacitor itor to to the c capacit apacitor or plate plate and ttighten ighten the ho holding lding sc screw rew..

12

Connec Connectt the the pump pump p powe owerr c conn onnect ector or..

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2124012

2-13 TABLE PUMP CAP CAPACITOR (Continu (Continued) ed) 13

Connec Connectt the ffour our line line connec connector tor n near ear tthe he Gan Gantry try..

14

Tie Tie up the loos loose e wi wires res with with tie tie w wrap raps. s.

15

Switch ON the the ”Table/T ”Table/Tilt” ilt” swit switch ch and verify verify that th the e table mov moves es up and down no normally rmally..

16

Switch Switch OFF tthe he ””T Table/T able/Tilt” ilt” swit switch. ch.

17 

For TABLE P9185AB/AF/AG:

a. Install Install the cradle tray and tthe he cr cradle. adle. b. Install Install the upper upper and and lower table c covers overs.. c. install install the rright ight a and nd left side ta table ble covers. covers. 

For TABLE 2129562/3/4:

a. Instal Installl the cr cradl adle e tra tray y. 18 19

Switch ON the ””T Table/Tilt” able/Tilt” s switch witch on on the rear rear bas base e of tthe he Gant Gantry ry.. END

2–49

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2124012

2-14 2-1 4 HEAD HOLD HOLDER ER RUB RUBBER BER SHEET SHEET Special Equipment  Rubber Set  Kim Wipe

Understand and follow the Safety Guidelines Manual 1.

Remove Remove e exis xistin ting g rub rubber ber sheets sheets fro from m the the hea head d holder holder..

2.

Rubb Rubber er Sh Shee eett Se Sele lect ctio ion: n:

Rubber Selection

NOTICE In the phase of rubber selection, do not attach the rubber yet !!! There are variations in horizontal free–play, There are fr ee–play, which come from the latch location. Therefore, the rubbers with dif different ferent thickness is supplied as a rubber set to select the proper rubber and achieve a tolerated free–play. When selecting the thicker rubber, the head holder can be latched securely with less horizontal free–play. When selecting free–play. However, However, this causes hard latching and a customer might use the head holder with no latched, so that the head holder might drop from the cradle and a patient might be injured. So, try the different rubber in thickness to select the proper one. a. First place the two 4.0 mm rubbers (the thickest rubber rubber)) onto both edges of the head holder as shown. Note  The rubber must be placed with its tab facing out.  The thickness is printed on the rubber.  You have only to place the rubber onto the holder. You You do not need to set it in an upright position w when hen selecting the rubber.

Tab

2–50

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2124012

2-14 HEAD HOLDER HOLDER RUBBER RUBBER SHEET SHEET ((Contin Continued) ued) b. Insert Insert it all the way into the cradl cradle e and press the head holder holder at proper pr pressure essure..

Press!

Latched

NOTICE Do NOT press the head holder at high pressure when latching it. The plastic bolts for mount Do NOT mounting the latch mechanism might be damaged.

Plastic Bolts

2–51

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2124012

2-14 HEAD HOLDER HOLDER RUBBER RUBBER SHEET SHEET ((Contin Continued) ued) c. Check if the head holder is latched on the cradle at the fist step of the latch mechanism. mechanism. (The head (The head holder does not need to be latched at the second step.) Check if the head holder has a small free–play in the horizontal direction. Check the Head Holder for Horizontal Free Play.

d. When the head holder is not latched (the rubber is too thick to install), repeat steps a to c using the second–  thickest rubber (3.5mm). Even if the thinnest rubber (0.5mm) can not be used, cut the tab of the 0.5mm rubber. Tab

Cut !

Note After adjustment, ask your customer to check the head holder free–play.

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2124012

2-14 HEAD HOLDER HOLDER RUBBER RUBBER SHEET SHEET ((Contin Continued) ued) 3.

Rubb Rubber er In Ins sta tall llat atio ion: n: a. Clean any dirt off off the attach attaching ing surfa surface ce of the rubber rubbers s using an alcohol as show shown. n. b. Peel off a papers from the rubbers, then att attach ach the rubbers on the head holder as shown. Hold the rubber a few seconds with your fingers to attach it securely onto the head holder. Note The rubber must be attached with its tab facing out.

Tab

Tab

Rubbers c. Latch the head holder to the cradle, then v verify erify tha the head holder has a small free–play in the horizontal direction.

2–53

TABLE / GANTRY

 

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CT PROSPEED SERIES COMPONENT REPLACEMENT 2124012

2–54

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2124012

DAS/DETECTOR COMPONENT REPLACEMENT TABLE OF CONTENTS SECTION

PAGE

SECTION 1 SECTION  1 – DAS BOARD (XE TYPE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1-2

1–1

CAM, CAM CONT. AND REF BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ADC, OFST COMP, CIF AND DTR ASSY BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–1 1–4

SECTION 2 SECTION  2 – DAS BOARD (SS TYPE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–1

2-1 2-2 2-3

CAM AND REF BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CAM CONT BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CIF AND SPC BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 3 SECTION  3 – DETECTOR (XE TYPE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

DETECTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 4 SECTION  4 – DETECTOR (SS TYPE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

DETECTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 5 SECTION  5 – TEMP CONT BOX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

TEMPERATURE CONTROL BOX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–1 2–3 2–5

3–1 3–1

4–1 4–1

5–1 5–1

i

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CT PROSPEED SERIES COMPONENT REPLACEMENT 2124012

ii

DAS / DETECTOR DETECTOR

 

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SECTION 1 – DAS BOARD (XE TYPE) Note This section applies to Xe Type DAS/Detector. This section DAS/Detector. For SS Type DAS/Detector, see Section 2, DAS BOARD (SS TYPE).

1-1

CAM, CAM CONT. AND REF BOARD

Special Equipment  CAM, CAM CONT., REF Board  Dolly/Support Studs

Note This procedure is written for replacement of all the DAS CAM Boards. However, the same procedure can be used for replacement of any number of the five CAM boards, CAM CONT boards, or REF board. END  ; Understand and follow the Safety Guidelines Guidelines Manual.

1

 Proceed until step

2

Set the Gantry to the 0 position position and  and lower the Table Table to the lowest position.

3

Switch OFF the ”Rotate”, ”XG” and ”Slip Ring 115V” switches at the Gantry rear base.

4

Remove the front and both side Gantry covers.

5    DAS: 2123758  2123758 Only: Remove the fourteen screws (front; 6, sides; 4x2) and two nuts. See Illustration 1–1. 1–1 .  DAS: P9184EA/HA  P9184EA/HA Only: Remove  the six screws and two nuts indicated by a Remove

on the DAS from the DAS cover cover.. See Illustration 1–1.

Note Do NOT Do  NOT over tighten the two nuts when installing the cover or the mating screws will break. 6

Remove the DAS cover. cover.

1–1

DAS / DETECTOR DETECTOR

 

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MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 8

1-1

2124012

CAM, CAM CONT. AND REF BOARD (Continued)

DAS: 212375 DAS:  212375 SCREWS (EACH SIDE)

SCREWS

NUT (EACH SIDE) TORQUE: 26.5 kg–cm

DAS: P9184EA / P9184HA

SCREWS (EACH SIDE)

TORQUE: 26.5 kg–cm(M5 NUT) DAS COVER RIGHT SIDE VIEW ILLUSTRATION ILLUSTRA TION 1–1

1–2

DAS / DETECTOR DETECTOR

 

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MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 8 REV  8 1-1

2124012

CAM, CAM CONT. AND REF BOARD (Continued)

7

Remove the three flat cable connectors connectors connected between each CAM board and Detector. Detector. (Illustration 1–2)

8

Disconnect all connectors connectors from the CAM CONT and CAM boards. (Illustration 1–2)

9

Loosen, Do NOT remove, the two long screws from the back of the CAM board plate. (Illustration 1–2)

10

Unscrew and remove the three screws from the front of each CAM board. (Illustration 1–2)

NCAM

CAM

CAM

LONG SCREWS

CONNECTORS  TO BE REMOVED

SCREWS DAS CONNECTOR REMOVAL LOCATIONS LOCATIONS ILLUSTRATION ILLUSTRA TION 1–2

11

Remove the CAM boards carefully one at a time.

12

Insert the new CAM boards into position.

13

Perform steps 9 through 3 in their reverse order. order.

14

Perform the following adjustments. adjustments. (Refer to Functional Check Check & Adjustment, System.)

CAM

CAM

 System Calibration, Air and Phantom Calibration Calibrati on



 Image Performance Verification Verification



END

15

1–3

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MEDICAL SYSTEMS GE MEDICAL SYSTEMS REV 8

1-2

2124012

ADC, OFST COMP, CIF AND DTR ASSY BOARD

Special Equipment 

ADC, OFST, COMP, CIF, DTR Board (The DAS P9184EA/HA only contain DTR Board.)



Dolly/Support Studs

Note This procedure is written for replacement of all the DAS Rear Boards. However, the same procedure can be can  be used for replacement of any single or combination of boards. END  ; Understand and follow the Safety Guidelines Guidelines Manual.

1

 Proceed until step

2

Move the Gantry into position with the X–Ray tube at about 8 o’clock as in illustration 1–3.

3

Switch OFF the ”Rotate”, ”XG” and ”Slip Ring 115V” switches at the Gantry rear base.

4

Remove the front and both side covers.

1–4

DAS / DETECTOR DETECTOR

 

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1-2

2124012

ADC, OFST COMP, CIF AND DTR ASSY BOARD (Continued)

5    DAS: 2123758  2123758 Only: Disconnect two Disconnect  two connectors and reusable tie–wraps, then remove the rear DAS cover, cover, eight nuts and four screws (Illustration 1–3). (Illustration 1–3).  DAS: P9184EA/HA  P9184EA/HA Only: Remove the rear DAS cover, eight nuts. (Illustration (Illustr ation 1–3).

SCREWS (DAS:2123758 ONLY)

REAR DAS COVER

REAR COVER 26.5 NUTS (8) (TORQUE: kg–cm)

SCREW (DAS:2123758 ONLY)

REUSABLE TIE–  WRAPS  (DAS:2123758 ONLY) DAS COVER REAR SIDE ILLUSTRATION ILLUSTRA TION 1–3

1–5

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2124012

ADC, OFST COMP, CIF AND DTR ASSY BOARD (Continued)

ADC ASSY

OFST COMP   ASSY

CIF ASSY

DTR ASSY (GANTRY P9184EA/HA ONLY)

DAS REAR VIEW BOARD LOCATION ILLUSTRATION 1–4 ILLUSTRATION

6

Remove all cables and connectors connectors from each board. The Board locations are shown in illustration 1–4 .

7

 the six screws securing each board, four screws for the DTR board, and carefully remove all the boards U ns at creawtime. one at one

8

Place the new boards into their respective positions and perform steps 6 through 3 in their reverse order. order. Note: For DAS Assy of the system with CE marking, marking, the cable between boards MUST be correctly connected as shown in Illustration 1–5 .

9

Perform the following adjustments. adjustments. (Refer to Functional Check Check & Adjustment, System.)  System Calibration, Air and Phantom Calibration Calibrati on



 Image Performance Verification Verification



10

END

FOR DAS OF THE SYSTEM WITH CE MARKING:

CORES

CIF

NCAM NCAM CONT

OFST COMP

CORE

ADC

CAM

WHEN THE INNER CONNECTION CABLES IN DAS ASSY ARE CONNECTED, NOTE THE DIRECTION OF THE CORE ATTACHED TO EACH CABLE.

 CORE OF CABLE BETWEEN CIF AND NCAM CONT: CIF SIDE  CORE OF CABLES (3 cables) BETWEEN CIF AND OFST COMP: OFST COMPSIDE  CORE OF CABLES (2 cables) BETWEEN OFST COMP AND ADC: OFST COMP SIDE  CORE OF CABLE BETWEEN ADC AND CAM: ADC SIDE  

CABLE CONNECTION ILLUSTRATION ILLUSTRA TION 1–5

1–6

DAS / DETECTOR DETECTOR

 

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2124012

SECTION 2 – DAS BOARD (SS TYPE) Note This section applies to SS Type DAS/Detector. This section DAS/Detector. For Xe Type DAS/Detector, see Section 1, DAS BOARD (Xe TYPE).

2-1

CAM AND REF BOARD

Special Equipment 

CAM and REF Board



Dolly/Support Studs END  ; Understand and follow the Safety Guidelines Guidelines Manual.

1.

 Proceed until step

2.

Move the Gantry at the 0 position and lower the Table to the lowest position.

3.

Switch OFF the ”Rotate”, ”XG” and ”Slip Ring115V” switches at the Gantry rear base.

4.

Remove the front and both side Gantry covers.

5.

Power OFF the servo amp breaker.

6.

Remove the DAS upper cover by unscrewing five Allen screws and two nuts at each side (right and left). Note that one of the Allen screws has a washer. See Illustration 2–1.

ALLEN

WASHER

NUT ALLEN

NUT

DAS COVER ILLUSTRATION 2–1

2–1

DAS / DETECTOR DETECTOR

 

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2-1 21

2124012

CAM AND RE REF F BOAR BOARD D (Con (Conti tinu nued ed))

7.

Remove the flexible cable at the location l ocation corresponding to the board to be replaced.

8.

Remove the CAM cover Remove cover,, removing removing screws screws (Illustrat (Illustration ion 2–2). Only Only for removin removing g left most most CAM board board of the left left box, remove the CAM cover support bracket, removing 3 screws.

CAM COVER SUPPORT BRACKET

CAM COVER

CAM BOARD REPLACEMENT ILLUSTRATION 2–2

9.

Remove the CAM board to be replaced.

10. Install the new CAM board. 11. Perform steps 8 through 4 in their reverse order. order. 12.

END