Great Western OM Manual PDF

 

 

Tru-Balance Box-Type Sifter Installatio Installa tion n and Opera peratio tions ns Manua anuall Great Western Manufacturing Company, Inc. th 2017 South 4  Street PO Box 149 Leavenworth, KS 66048-0149 USA Phone: (913) 682-2291  Toll-Free Phone: (800) 682-3121  Facsimile: (913) 682-1431 World Wide Web: http://www.gwmfg.com •

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TOC (TBB) 1 of 1

Table Ta ble of Contents

 

Model: TBB-221

 

Shop Number(s): 4500  

Purpose

P

Safety Alert Symbols

SAS

Product Description

PD

Flow Scheme Description

FSD

Flow Schematic(s)

FSM

Installation Drawing(s)

ID

General Safety Instructions

GSI

General Operation and Maintenance Instructions

GOMI

Lifting the Sifter

LS

Uncrating and Installing the Sifter

UIS

Inlet and Discharge Socks and Clamps

IDSC

Electrical Connections

EC

Vibration-Sensing Switch (Optional)

VSS

Low Pressure Switch (Optional)

LPS

Microswitches for Lift-Off Shields (Optional) Pneumatic Connections (Optional)

M PNC

Safety Decal Placement Guide

SDPG

Pre-Operation Checks Sieve Removal

POC SRM

Sieve Replacement

SRP

Pneumatic Clamping (Optional)

PC

Rack and Pinion Clamping (Optional)

RPC

Inspection Checklist

IC

Screen Replacement

SR

Lubrication Schedule

LBS

Removing, Installing, Adjusting, and Maintaining the Tie-Bar

MTB

Tru-Balance Box-Type Guards

JTG

Sifter Balance

SB

Troubleshooting

T

Vibration Troubleshooting

VT

Technical Data

TD

Parts List

PL 

 

Purpose

P (TBB) 1 of 1

  This manual is part of the Tru-Balance Box-Type Sifter and should be kept near the Sifter for users to read. This manual provides the reader with:  

Installation instructions

 

Operation guidelines

 

Safety information

 

Maintenance instructions

 

Parts information

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Copyright© 2005 Great Western Manufacturing Company, Inc.

 

Safety Sa fety Alert Symbols

SAS (TBB) 1 of 1 

  Safety alert symbols are used in this manual to to indicate potential personal injury hazar hazards. ds. All personnel must observe these potential personal injury hazards and take appropriate preventative action where applicable.

Indicates an imminently hazardous situation that, if not avoided, will result in serious injury or death. This symbol is observed for the most extrem extreme e of situations.

Indicates a potentially hazardous situation that, if not avoided, could result in serious injury or death.

Indicates a potentially hazardous situation that, if not avoided, may result in minor or moderate injury. It may also be used to to alert against unsafe unsafe practices.

Indicates useful information gained through industry experience that, if not followed, may result in a caution, warning or danger situation.

 

Product Descript Descript ion

PD (TBB) 1 of 1

  The Tru-Balance Box-Type Sifter is custom designed and built for screening dry, free-flowing products ranging in size from 0.25 to 0.0025 inches. The gentle gyratory sifting action provides accurate separation and sizing of a product. It is usually floor mounted, but can be attached to the ceiling. The Sifter’s dust-tight gyrating housing is mounted in a sanitary tubular steel drive frame. The Sifter opens easily for inspection, cleaning and maintenance. Sieve frames are nested one on top of the other in the gyrating housing. Each sieve frame may hold a removable tray with sieve screening material. The screens are attached to the frames in one of two methods: mechanical (stapled) attachment or glued-on attachment. Screen cleaners unplug product from the screen openings. Gaskets seal the sieves and trays. The Sifter is operated by a motor(s) mounted on the frame, V-belts, and counter-balancing weights on eccentric shafts synchronized by a tie-bar. The clamping system ensures constant compressi compression on of the sieve stack while the Sifter is in operation. The Sifter has been assembled, operated and balanced at the factory prior to shipping. The Sifter may be cleaned through dry brushing and/or vacuuming.

 

Flow Scheme Descripti Descripti on

FSD (TBB) 1 of 1

  The Tru-Balance Box-Type Sifter is a multi-sieve gravity flow screening machine. The product is gently sieved through vertically nested sieve frames without being forced through the screens. When thesifting product enters the Sifter, it is is cascaded the sieve screensthe by risk a horizontal gyratory motion. This gyratory action accurately separates productalong particles and reduces of fracturing oversize impurities and forcing them through the sieve screens.

 

Flow Schematic(s)  

See Attached Sheet(s)

FSM (TBB) 1 of 4 

 

Installation Drawing(s)  

See Attached Sheet(s)

ID (TBB) 1 of 3

 

General Safety Instructions

GSI (TBB) 1 of 1

 

For your protection, please read these instructions completely before installing, operating, or maintaining the Tru-Balance Tru-Balance Bo x-T x-Type ype Sifter.

 

Follow your employer’s plant safety guidelines.

 

The Sift Sifter er should be operated only from the type of power source indicat indicated ed on tthe he motor(s) labels.

 

Appropriate safety measu measures res shoul should d be exercised during installation, operation, and mai maintenance ntenance of the Sifter. Work should be compliant with al alll appropriate local and national codes.

 

To ensure proper operation operation of equipment, periodic periodic m maintenance aintenance must be performed in accordance with tthe he manufacturer’s instructions.

 

Only trai trained ned and authorized personnel must be allowed to operate and perform maintenance on the Sifter. Sifter.

 

Use cauti caution, on, especially especially regarding regarding hands and arms, when inst installing alling and operating the Si Sifter. fter. O Operate perate with with guards in place.

 

When performi performing ng maintenance on the Sifter, all power sources must be locked out to prevent injury to personnel and potential damage to the equipment.

 

Use hearing and eye protection iin n accordance with plant plant safety guidelines when installing, installing, operating, and maintaining the Sifter.

 

Dispose of any hazardous waste in accordance with established laws and rregulations. egulations. Recycle as appropriate.

 

Modifications, extensions, additional welding, and rebuilding of the Sifter are not permitted without prior approval of Great Western .

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General Ge neral Operations Operation s and Maintenance Instructions

GOMI (TBB) 1 of 1

 

For your protection, please read these instructions completely before installing, operating, or maintaining the Tru-Balance Tru-Balance Bo x-T x-Type ype Sifter.

 

Before st starting arting the Sifter, make make sure the sieve stack is clamped tightly in the box. The appropriate section (Pne Pneumatic umatic Cla Clamping mping or  or Rack and Pinion Press-Top Clamping) Clamping ) of this manual has detailed instructions on this procedure.

 

The Sifter has a 2-5/8”, 2-5/8”, 3-1/2”, or 4” diameter circle of gyration. The 2-5/8” Sifter should be driven between 230 and 263 rpm. The 3-1/2” Sifter should be driven between 200 and 230 rpm. The 4” Sifter should be driven between 185 and 210 rpm. Do not vary the speed of the Sifter without consulting a Great Western   representative.

 

Do not allow product to build up inside the Sifter; Sifter; it will become unbalanced, which may possibly damage the drive mechanism.

 

Lubricating the Sifter is essential for efficient operation, and helps to maximize the life of the Sifter. Sifter. See the Lubric ation Schedule Schedule section of this manual for the recommended lubrication schedule of the Sifter.

 

The tie-bar below the Sifter must be properly adjusted. For more more inform information ation on the tie-bar, tie-bar, see the Removing, Re moving, Installing, Adjusti ng, and Ma Maintaining intaining the Tie-Bar Tie-Bar section of this manual.

 

For advice on installation or operation of the Sifter not covered in this manual, contact a Great Western   representative. When calling Grea Greatt Western , it is helpful to have available the Shop Number and Model Number of the Sifter Sifter on which you are working. working. These numbers help Great Western  identify characteristics and special construction features of the Sifter.

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Lifting the Sifter Sifter

LS (TBB) 1 of 1

 

For your protection, please read these instructions completely before lifting the Tru-Balance Box-Type Sifter.

When Lifting th e S Sifter: ifter: Using a Crane:  

When lifting the Sifter, use extreme care.

 

Use only hoists that are in good working condition.

 

Perform a suspension test.

 

Never work or stand below lifted loads.

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Using a Forklift:  Forklift:    

Check the weight of the sifter in the Technical Data section of this manual to verify needed carrying capacity.

 

When lifting the Sifter, lift carefully to avoid damaging the tie-bar and discharge fittings.

 

Perform a suspension test.

 

The machine can be top heavy. Lower carefully.

 

Since the shipping case also contains accessories, an out-of-balance situation could occur.

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Uncrating and Installing th e Sifter Sifter

UIS (TBB) 1 of 3

  The Tru-Balance Box-Type Sifter will arrive arrive in a heavy wooden crate, bolted to a skid. The Sifter may be supplied with an inlet spout support stand.   Inspect the Sifter ffor or shipping damage. Immedi Immediately ately notify the carrier, in writing, writing, as well as Great Western  if any damages are discovered.

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  Remove the crating, except except for  for the skid to which the Sifter is bolted.

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  Position the skidded Sifter as close as possible to it its s final location.

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  Unbolt the Sifter from the skid. Li Lift ft and place the Sifter in position iiff using a forklift. Ensure forks go under frame members at front and back of the frame to protect the tie-bar.

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When lifting the Sifter, do not attach chains or straps to the top dome or bearing arms. Use the top or bottom f rame me members mbers at the front and back for liftin g.  g. 

Photo 1: Proper Sifter Sifter Lifti ng Points, Option 1

 

Uncrating and Installing th e Sifter Sifter

UIS (TBB) 2 of 3

 

Photo 2: Proper Sifter Sifter Lifting Points, Option 2

  Prior to final positioning of the Sifter, ensure that the inlet(s) and outlet(s) are properly situated for product line connections. They must be centrally located to allow for proper rotation of the Sifter. Also ensure that there is is adequate

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space around Sifter for proper safety, operation, andthe maintenance.

Prior to fastening the Sifter frame, frame, ensure that that the foot pads of th e frame sit flat and that all four corners of the frame are level. If the Sifter frame is not level, place shims under the footpads. When the Sifter is installed, the frame must be level front-to-back and side-to-side.

Do not pull the legs down to meet the floor. Shim from the floor up to the legs. legs .

Photo 3: Inlet Support Stand

 

Uncrating and Installing th e Sifter Sifter

UIS (TBB) 3 of 3

    If the Sifter is is equipped with an inlet support stand, install install it at this time. See the instructions for connecting the Inlet and Discharge Socks and Clamps Clamps..

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  Connect tthe he motor(s) and any other electri electrical cal devices devices in accordance with with the Ele Electrical ctrical Connections  section of this manual.

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  If necessary, connect the pneumatics in accordance with the Pne Pneumatic umatic Connections Connections section  section of this manual.

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Do not weld or attach anything to the tubular frame or either the top or bottom domes. Do not use the frame to support other machinery. These actions will destroy the pr ecise dimensions of the Sifte Sifter. r.

 

Inlet and Disc Disc harge Socks and Clamps  

IDSC (TBB) 1 of 1

  Flexible connecting socks are provided for the the inlet and discharge points of the Tru-Balance B Box-Type ox-Type Sifter. Two clamps per sock are also provided; use the clamps to secure all of the socks to the Sifter.   When iinstalling nstalling socks on the S Sifter, ifter, connect tthe he socks at bot both h ends. Securely clamp the sock to one end. Manually collapse the sock and then securely clamp the sock to the  other end.

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  The socks shoul should d be loose enough to freely rotate wit with h the Sifter. Sifter. Check thi this s by manually rotating the Sifter.

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Standard socks furnished are twelve (12) Standard (12) inches long. These These are intended to connect th e gyrating Sifter to a fixed spo ut seven (7) (7) inches apart.

Photo 1: Flexible Sock and Clamp

Do not attempt to change the socks or adjust the sock clamps while the Sifter is running.

 

Electric Ele ctric al Connection Connection s

EC (TBB) 1 of 1

 

For your protection, please read these instructions completely before performing electrical work on the Tru-Balance Box-Type Sifter.

 

Only properly licensed electricians should perform perform el electrical ectrical work on tthe he Si Sifter. fter.

 

All work must be performed performed in compliance wi with th the technical technical specifications specifications and re regulations gulations for local and national electrical codes.

 

Electrical connections sho should uld only be made after electrical electrical personnel personnel have read and understood thi this s section of the manual.

 

Maintenance on electrically active parts should only be performed in the presence of a second person that can turn off the electrical power.

 

The w working orking area should be properly identified for the the safety of workers. workers.

   

Use only insulated tools. The vol voltage tage ratings ratings in in the wiring diagram must coincide coincide with with the supply voltage.

 

Assure the Sifter is securely grounded before work begins.

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Connecting the Motor Connect the motor(s) in accordance with existing electrical codes. Refer to the diagram on the motor nameplate. The rotation of the drive do es not matter. Machines equipped with two motors should have two properly sized starters. The two starters can be connected to start and stop from a single control device. Both motors, however, must rotate in the same direction.

Connecting Other Electrical Device Devices s Connect other optional electrical devices  devices in accordance with existing electrical codes. Optional devices include:  

Vibration-sensing switch.

 

Low pressure switch.  switch. 

 

Microswitches for lift-off shields. shields.  

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Vibration-Sensing Vibration-S ensing Switch

VSS (TBB) 1 of 1

  The vibration-sensing switch is an added safety feature of some models of the Tru-Balance Box-Type Sifter. When properly adjusted, the switch switch detects out-of-balance conditions, minimizing minimizing damage to the Sifter. This device contains an internal switch that activates when there is vibration or shock above a pre-set level.

Connecting the Switch   Carefully read the included instruct instructions ions before installing the vibration-sensing vibration-sensing switch. switch. The switch must be connected to the motor controller  controller  in  in accordance with existing electrical codes.

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  The swi switch tch should be connected to stop the Sifter Sifter imm immediately ediately upon activation.

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 Ad ju st in g t he Sw Swit it ch   The vibratio vibration-sensing n-sensing switch switch arrives pre-set. Under normal operati operating ng conditions, it should not need adjusting. However, should adjustment be needed, Great Western  recommends adjusting the switch so that the Sifter is just able to start without tripping the switch.

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  Turn the set point adjustment screw screw clockwi clockwise se 1/4-turn to further decrease the sensitivity of the unit.

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Turning the set point adjust ment screw clockwis e decrease decreases s the sensitivity t o vibrations, while a counter-clockwise turn i ncrease ncreases s the sensitivity.

 

Low Pressure Switc Switc h

LPS (TBB) 1 of 1

  Tru-Balance Box-Type Sifters Sifters equipped with pneumati pneumatic c clamping systems have a low pressure swit switch. ch. The switch arrives pre-set in the pneumatic control box. It is intended to function with a programmable logic controller. The switch provides both normally open and normally closed contacts limited to the current rating specified in the Pneumatic Pneuma tic Connectio ns  section

of this manual, and must be wired in accordance with existing electrical codes.

Normal operating pressure for the Sifter Sifter is between 100 and 120 psi. Some systems may require a booster to maintain adequate air pressure. If pressure falls below 80 psi, the swit switch ch will cause the Sifter to shut off or sound an alarm. If the Sifter suddenly shuts off due to inadequate air supply:   Check air supply and air line.

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  Re-establish adequate air pressure.

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  Initiate start-up procedure and continue operation.

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Microswitches for Lift-Off Shields

M (TBB) 1 of 1

  Lift-off shields equipped with microswitches microswitches are optional components of the Tru-Balance Box-Type Sifter. These components are an added safety feature. These microswitches must be connected to the motor

controller

in accordance with existing electrical codes.

The microswitches prevent the Sifter from running when the lift-off shields are not installed. They also may be wired to shut off the Sifter and/or sound an alarm when the lift-off shields are removed or become improperly aligned during operation. If the Sifter will not run, or the microswitches shut off the Sifter and/or sound an alarm:   Ensure the lift-off shields are properly installed.

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  Initiate start-up procedure and continue operation.

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Pneumatic Pne umatic Connections

PNC (TBB) 1 of 2 

 

Item 9toElectrical 10mA 500mA atRating 30VDC 10mA to 300mA at 125VAC 10mA to 200mA at 250VAC

Figure 1: Tru-Balanc e Box-Type 100/200 100/200 S Series eries Sifter Pneumatic Sch ematic

Figure Number

Great Western Item Number

Descript ion

1 2 3 4

028-000-320 028-000-306 026-000-054 026-000-057

Conduit Bulkhead One-Touch Connector Bulkhead One-Touch “Y” Union One-Touch Union Bulkhead

5 6 7 8 9 10 11 12 13 14

028-000-383 028-000-211 028-000-199 028-000-305 028-000-502 028-000-382 400-324-001 028-000-242 028-000-361 300-070-000

One-Touch Plug-In “Y” One-Touch Check Valve One-Touch Female Union Controller Box w/Screw Cover Dial Gauge w/Pressure Switch Pneumatic Indicator One-Touch 90° Male Elbow Pilot Operated 4-Way, 5-Port Valve One-Touch 90° Elbow Bulkhead Air Cylinder

 

Pneumatic Pne umatic Connections

PNC (TBB) 2 of 2 

 

 

Minimum = 100 psi

 

Maximum = 120 psi

 

Connect the air supply line directly to the pneumatic control box.

 

In tthe he pneumati pneumatic c cont control rol box, the supply supply line is equipped equipped with with a check

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Supply Pressure: •

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valve. Connection:  

Use clean, dry air.

 

The low-pressure switch (optional) is intended to function with a

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programmable logic controller.

During periods of scheduled maintenance, check the condition of the pneumatic connection s and lines to a assure ssure they a are re not worn and no le leakage akage is occurrin g. If leaks or w orn areas are discovered, repair immediately.

 

Safety Sa fety Decal Decal Placement Placement Guide  

Decal De cal Placement  A (End Guards)

B (Motor Side End Guard)

C (Front and Back Shields)

Decal Decal

SDPG (TBB) 1 of 1

 

Pre-Operation Checks

POC (TBB) 1 of 1

 

 Al  Alway way s l oc k o ut the th e electr elec tr ic al pow p ow er befo b efore re w or ki ng on the th e Tru Tru-Bal -Bal anc e Bo Box-Ty x-Type pe Sifter.

  Before startin starting g the Sift Sifter, er, open it. Remove the si sieves eves and complete completely ly clean the Sifter and sieves. Thi This s will ensure that foreign matter has not contaminated the Sifter during shipping or installation. See the Sieve Removal section of this manual for instructions on how to perform this procedure.

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  Reassemble the Sifter. Make sure the trays are properly properly installed in the sieve frames. The Sieve Replacement section of this manual includes instructions on how to perform this procedure.  procedure. 

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  Manually rrotate otate the Sifter and ensure that the Sifter turns freely freely and that ther there e are no obstruct obstructions. ions. The Removing, Re moving, A djustin g, and Maintaining t he Tie-Bar  Tie-Bar  section  section of this manual includes instructions on how to perform and troubleshoot this procedure.

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Sieve Removal

SRM (TBB) 1 of 3

  The nested sieves are stacked on top of each other in the Tru-Balance Box-Type Box-Type Sifter box. The sieves are numbered in order, with the number “1” at the top of the stack. The highest numbered sieve is calle called d the bottom sieve. The bottom sieve is tailored tto o fit the outlets of the Sifter. The Sifter box door and box ribs (located at the interior interior corners of the box) properly align the sieves. A press-top frame (located above sieve number “1”) is used to compress the sieve stack and prevent the product from leaking during operation.   Remove the front front and back m machine achine guards guards as shown in the Tru-Balance Guards section Guards  section of this manual.

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Pneumatic Pneuma tic Clamping Clamping System The press-top is raised and lowered through the use of pneumatic cylinders.   Remove the door rod (if applicable).

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  Turn the pneumatic control key to the unclamped position position as shown in Photo 1.

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Photo 1: Initial Pneumatic Clamping System Sieve Removal Removal Proc edure

 

Sieve Removal

SRM (TBB) 2 of 3

    Loosen the door tail nuts unt untilil the door bar clamps can be turned p parallel arallel to the the edge of the the door frame.

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  Remove the Sifter door.

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Pull the door out evenly side-to-side side-to-side and from the top. The door wedge can be damaged damage d if the door is pulled fro m one side only.

  Remove the si sieves eves from tthe he Sifter box beginning with with the sieve at the top (number “1”) of the sieve stack as shown in Photo 2.

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Rack Ra ck and Pinion Clamping System The press-top is raised and lowered through the use of hold-down posts or shafts.   Remove the door rod (if applicable).

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  Turn the press-top shafts shafts clockwise to raise the rack and pinion press-top assembly assembly and loosen the sieve stack.

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Do not loosen one side of the rack and pinion press-top system all of the way; loosen one side part way and then the other side, or both sides simultaneously. This action prevents the rack rack and pinion p ress-top assembly assembly from bi nding.

Use a 1/2” 1/2” female female,, press-top ratchet wrench to operate the mechanisms. Do not use slip join t pliers or an adjustable wrench.

  Loosen the door tail nuts unt untilil the door bar clamps can be turned p parallel arallel to the the edge of the the door frame.

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  Remove the Sifter door.

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Pull the door out evenly side-to-side side-to-side and from the top. The door wedge can be damaged damage d if the door is pulled fro m one side only.

 

Sieve Removal

SRM (TBB) 3 of 3

    Remove the si sieves eves from tthe he Sifter box beginning with with the sieve at the top (number “1”) of the sieve stack as shown in Photo 2.

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Photo 2: Intermediate Sieve Removal Procedure

When removing sieve frames, minimize the tendency to drag the sieve frame on the screen below. below. This action will help to prolong t he life of the screens. 

 

Sieve Replacement

SRP (TBB) 1 of 3

 

Ensure that all trays are inserted in the sieve frames before beginning the sieve replacement replaceme nt procedure. 

The sieves should be placed in the box against the ribs with the number of the sieve facing facing th e door.  door. 

  Install the bottom (highest numbered) sieve first.

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  Stack the remaining sieves in the box with the numbers from hi highest ghest to lowest.

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Photo 1: Intermedi ate S Sieve ieve Replacement Procedure

The sieves sieves sh ould align fron t-to-ba t-to-back ck and s ide-toide-to-side side as they are stacked. stacked.  

 

Sieve Replacement

SRP (TBB) 2 of 3

    Install the Tru-Balance Box-Type Sifter Sifter door bottom-first and push tthe he top into position. position.

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Photo 2: Door Bar Clamp and Door Tail Nut

  Turn the door bar clamps at at a right angle to the door and hand-tighten the door tail nuts to help snug the door into

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position. the door several ttimes imes handtighteningGo thearound door tail nuts evenly.

Pneumatic Pne umatic Cla Clamping mping System   Turn the pneumatic control key to the clamped position.

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  Replace the door rod (if applicable).

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Only tighten the door rod nut ti ght enough to begin cl osing the gaps betwee between n the door frames and and openings. Do not overtighten as as this will distor t the frame frame a and nd potentially damage the frame posts.

Rack Ra ck and Pinion Clamping System   Turn the press-top shafts shafts counterclockw counterclockwise ise to lower the rack and pinion press-top press-top assembly and compress the sieve stack. It is recommended that the press-top assembly be tightened to 25 ft-lbf and/or until the sieve stack is securely compressed.

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Do not tighten one side of the rack and pinion press-top system all of the way; tighten one side part way and then the other side, or both sides simultaneously. This action prevents the rack rack and pinion p ress-top assembly assembly from bi nding.

 

Sieve Replacement

SRP (TBB) 3 of 3

 

Use a 1/2” 1/2” female female,, press-top ratchet wrench to operate the mechanisms. Do not use slip join t pliers or an adjustable wrench.

  Replace the door rod (if applicable).

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Only tighten the door rod nut tig ht enough to begin clo sing the gaps betwee between n the door frames and and openings. Do not overtighten as as this will distor t the frame frame a and nd potentially damage the frame posts.

Pneumatic Clamping  Clamping   or Rack and Pinion Clamping) Clamping ) section of If clamping issues exist, see the appropriate ((Pneumatic this manual for detailed instructions.

 

Pneumatic Clamping

PC (TBB) 1 of 5

  The sieve stack is clamped by a pneumatic clamping system. The system keeps constant pressure on the sieve stack and prevents product leakage through proper gasket compression. The configuration and number of assemblies differs slightly in Tru-Balance Box-Type Series Sifters; however, the function is identical for all Sifters. The Tru-Balance Box-Type 100 Series Sifter has two assemblies that extend through the top carr carrier. ier. The isometri isometric c view of this assembly is depicted in Figure 1.

Figure 1: Tru -Balance Box-Type 100 Se Series ries Sifter Pneumatic Press-Top Assembly

Figure Number

Great Western Item Number

Descript ion

N/A 1 2 3 4 5 6 7 8

000-005-300 000-001-007 000-001-084 000-001-797 000-001-787 See Pneuma Pneumatic tic Connections  Connections   400-141-210 400-071-000 400-022-003

Pneumatic Press-Top Assembly (TBB-100) Cylinder Mounting Plate Take-Down Shaft Press-Top Bracket Washer Plate Cylinder Flat Head Machine Screw Flat Washer Lock Nut

 

Pneumatic Clamping

PC (TBB) 2 of 5

  The Tru-Balance Box-Type 200 Series Sifter has two assemblies that extend through the to top p carrier. The isometric view of this assembly is depicted in Figure 2.

Figure 2: Tru -Balance Box-Type 200 Se Series ries Sifter Pneumatic Press-Top Assembly

Figure Number

Great Western Item Number

Descript ion

N/A 1 2 3 4 5 6 7

000-005-299 000-001-816 000-003-059 000-001-084 000-001-797 000-005-286 See Pneuma Pneumatic tic Connections  Connections   400-141-210

Pneumatic Press-Top Assembly (TBB-200) Cylinder Mounting Plate Cylinder Spacer Take-Down Shaft Press-Top Bracket Washer Plate Cylinder Flat Head Machine Screw

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400-071-000 400-022-003

Flat Washer Lock Nut

 

Pneumatic Clamping

PC (TBB) 3 of 5

  Tru-Balance Box-Type 300/400 Series Sifters have four assemblies that extend through the top of the wooden box. The isometric view of this this assembly is depicted in Figure 3.

Figure 3: Tru-Balance B ox-Type 300/4 300/400 00 Series Sifter Pneumatic Press-Top Assembly

Figure Number

Great Western Item Number

Descript ion

N/A 1 2 3 4 5 6 7

000-005-302 000-003-106 000-001-534 000-001-797 000-001-787 See Pneuma Pneumatic tic Connections  Connections   400-141-210 400-071-000

Pneumatic Press-Top Assembly (TBB-300/400) Cylinder Mounting Plate Take-Down Shaft Press-Top Bracket Washer Plate Cylinder Flat Head Machine Screw Flat Washer

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400-022-003

Lock Nut

 

Pneumatic Clamping

PC (TBB) 4 of 5

  Though rarely built, the Tru-Balance Box-Type X21 Series Sifter with 28-3/4”x28-3/4” sieves has two assemblies that extend through the top carrier. The isometric view of tthis his assembly is depicted in Figure 4.

Figure 4: Tru-Balance Box -Type X2 X21, 1, 28-3/ 28-3/4” 4” Series Sifter Pneumatic Press-Top Assembly

Figure Number

Great Western Item Number

Descript ion

N/A 1 2 3 4 5 6 7

000-005-303 000-005-274 000-005-355 000-001-797 000-005-286 See Pneuma Pneumatic tic Connections  Connections   400-141-210 400-071-000

Pneumatic Press-Top Assembly (TBB-X21, 28-3/4”) Cylinder Mounting Plate Take-Down Shaft Press-Top Bracket Washer Plate Cylinder Flat Head Machine Screw Flat Washer

8

400-022-003

Lock Nut

 

Pneumatic Clamping

PC (TBB) 5 of 5

 

Ensure 100 to 120 psi of dry, oil-free compressed air is available at the Sifter.

Once the pneumatic clamping is complete, the Sifter is ready for operation.

The pneumatic control key should be removed to prevent operation of the pneumatics while the machine is i n operation.

 

Rack and Pinion Clamping  

  This mechanical (rack and pinion) press-top assembly is used in compress and seal the sieve stack.

Great Western’ Western’ s  wooden

RPC (TBB) 1 of 2 

box Sifters to

The configuration and number of assemblies differs slightly in Tru-Balance Box-Type 100/200 and 300/400 Series Sifters; however, the function is identical in both. Tru-Balance Box-Type 100/200 Series Sifters have two assemblies that extend through the top carrier. TruBalance Box-Type 300/400 Series Sifters have four assemblies that extend through the top of the wooden box. The isometric view of this assembly is depicted in Figure 1.

Figure 1: Tru-Balance Box-Type Sifter Rack Ra ck and Pinion Pre Press-T ss-Top op A ssembly

It should also be noted that the pinion assemblies (Figure 1, Item 4) are of differing lengths for the Tru-Balance Box-Type 100/200 and 300/400 Series Sifters.

 

Rack and Pinion Clamping  

 

RPC (TBB) 2 of 2 

 A component list for Figure 1 is provided in the tabl table e below.

Figure Number

Great Western Item Number

Descript ion

N/A N/A 1 2 3 4 4 5 5 6 7 8

000-005-304 000-005-305 000-002-079 000-001-381 000-002-080 000-002-092 000-001-184 000-002-085 000-003-467 000-001-734 400-394-000 400-141-210

Rack and Pinion Press-Top Assy (TBB-100/200) Rack and Pinion Press-Top Assy (TBB-300/400) Lock Plate Collar Kit Washer Plate Pinion Assy (TBB-100/200) Pinion Assy (TBB-300/400) Gear Rack with Tab Assy (St Steel) Gear Rack with Tab Assy (Steel) Spring Ball Flat Head Machine Screw

Turning the shaft counterclockwise lowers the rack and pinion press-top assembly and compresses the sieve stack. Tighten the presspress-top top assembly to 25 ft ft-lb -lbf and/or until the sieve stack is securely compressed.

Use a 1/2” 1/2” female female,, press-top ratche ratchett wrench to o perate the mechanisms. Do not use slip join t pliers or an adjustable wrench.

Photo 1: Press-Top Ratchet Wrench (Great (Great Western Pro duc t Numb er 400-390 400-390-00 -000) 0)

 

Inspection Checklist Checklist

IC (TBB) 1 of 1

  The Tru-Balance Box-Type Sifter is intended intended to serve as a quality assurance tool. Inspect the entire Sifter regularly in accordance with your maintenance and quality control program.

Disconnect and lock o ut Sifter motor.

Inspection

  Check for evidence of leaks or dusting out.

□

  Check condition of inlet and discharge socks.

□

  Check conditi condition on of all gaskets (sieve to sieve and sieve to tray) in accordance wit with h plant policy.

□

  Check screen condition for wear and/or holes on all trays trays in accordance with plant policy.

□

  Check scre screens ens for blinding (plugging) of product in accordance with pl plant ant policy.

□

  Ensure screen cleaners are in good condition (must be ≥ Ø3/8”).

□

  Check sieve pans (they should be free of product accumulation).

□

  Lubricate in accordance with the Lubrication Schedule section of this manual.

□

 

Screen Replacement

SR (TBB) 1 of 5

  The trays used in the Tru-Balance Box-Type Sifter have screens that are attached using one of three methods. The stapled-on attachment method stretches and bonds the sieving media to the sieve frame through the use of staples or tacks. The glued-on attachment method stretches and bonds bonds the sieving media to tthe he sieve frame through the use of an adhesive. A third method of attachment is comprised of a system of looped edges sewn in the perimeter of the sieving media and secured by rods, clamps, and set screws. When it is necessary to replace the screen cleaners or the screen itself due to wear or damage, two alternatives exist:  

Return the sieves and/or trays to Great Western   for replacement.  replacement.  Great Western   will remove the old screens and cleaners, clean and inspect the tray frame, and replace the screens and cleaners, if necessary.

 

Replace the screens and c leaners Replace leaners in your facility. With respect to the stapled-on and looped-edge screen attachment methods, this consists of either purchasing the screen and cleaners from Great Western   or another provider of these materials. materials. On-site glued-on attachment requires requires the purchase of a pneumatic or mechanical screen stretcher. Provided that you own the proper equipment to perfo perform rm glued-on screen attachments, the procedure is quick and simple. Great Western  can provide the equipment and supplies for this option.

•

•

Instructions for stapled-on and looped-edge screen attachment methods are provided in this manual section. When ordering replacement screen for the Sifter, give the supplier the frame size, number of side channels, the throat width, the type of screen fabric, and the mesh size of the screen. The supplier will make allowances for the proper amount of stretch in the screen.

Stapled-O Sta pled-On n At tachment Instructio ns

Read Re ad all instructio ns before beginning this process.

Tools and Materials Required:  

Light-Duty Hammer

 

Awl/Staple Remover

 

Duckbill Jaw Screen Stretching Pliers

 

Staple Gun

 

Diagonal-Cutting Pliers

•

•

•

•

•

Photo 1: Screen Replacement Using the Stapled-On Attachment Method

 

Screen Replacement

SR (TBB) 2 of 5

 

 Al th ou gh tac tacks ks can be us ed fo r sc reen att ach ment, men t, Great West ern recom rec om men ds using a good pneumatic or mechanical staple staple gun. Sta Staples ples should have a 1/2” 1/2” wide crown with a 3/8” 3/8” leg length. Staples Staples shou ld be installed at a 45 45°° angle. angle.

  When removi removing ng or replacing screens, use a clean, flat, stable work work surface.

□

  Remove all old screen and staples, using an awl or staple remover, from the tacking fr frame. ame. Ensure that the backwire is tightly stapled to the frame frame and cross pieces. Also, check the sieve compartment liners liners for areas that are missing or loose. All cleaners that are badly worn should be replaced. replaced.

□

  Place the screen on the tacki tacking ng frame frame so it is square against the head-end and the right-side. Staple that that corner with 2 or 3 staples, 1/2” to 1” apart. apart. See Figure 1, Position A.

□

Great Western

screen.

  recommends using a crossed staple pattern on the corners of the

Figure 1: Stapled-On Attachment Diagram   Using screen pliers, pull the screen across the right-side as tightly as possible and staple at the right-side, throat-end corner. corner. See Figure Figure 1, Position B. Staples are tthen hen installed across the right side, 1/2” to 1” apart, and at a 45° angle. See Figure 1, P Position osition C.

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  The head-end of the screen is stretched to the left-side using the pliers until tight, and then stapled at the left-side, headend corner. See Figure 1, Position D. Staple the head-end with staples 1/2” to 1” apart and at a 45° angl angle. e. See Figure 1, Position E.

□

  Using the pliers, stretch the left-hand side of the screen to the throat, placing staples at the left-side, throat-end corner. See Figure 1, Position Position F. Pull with the the awl or pliers (Great Western   recommends the use of an awl with wire screen, and the pliers with synthetic screen) to stretch the screen toward the

□

left-side. Begin at the head working to the thr throat, oat, stapling at 1/2” to 1” intervals and at a 45° angle. See Figure 1, Position G.

 

Screen Replacement

SR (TBB) 3 of 5

 

If the screen pu ckers at t he end, remove the staple(s) a and nd restretch the end.

  With the awl or pliers (Great Western  recommends the use of an awl with wire screen, and the pliers with synthetic screen), tightly tightly stretch the throat side of the screen. Work from the left-side to the right-side right-side with the staples 1/2” to 1” apart and at a 45° angle. See Figure 1, Position H.

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The screen, when pressed down firmly with one finger, should depress no more than 1/2” 1/2” .

Looped-Edge Attachment Attachment Instruction s

Read Re ad all instructions before beginning this process.

Tools and Materials Required:   Smooth, Flat, Clean Plywood (or equivalent) •

 

Large Slotted Screwdriver (blade should have rounded edges)

 

Large P Pair air of Slip-Joint Slip-Joint Pliers (teeth ground tto o match contour of rod rods) s)

 

1/8” Allen Wrench

 

Light-Duty Hammer

•

•

•

•

  When removing or replacing screens, use a clean, flat work surface. Place a piece of plywood on the work surface. The plywood must be cut to the size of the tray or up to 1” greater than the sides of the tray.

□

  When removing sc screens, reens, place the tray, with backwire side up, on the plywood. Loosen all set screws. Remove loops (containing rods) from the grooves of the tray. Lift tray off of screen. Remove cleaners and remove rods from loops.

□

 

Screen Replacement

SR (TBB) 4 of 5

    When replacing screens, put the screen, looped edge up, on the plyw plywood. ood. Slide the appropriate size rod into each loop.

□

  Place cleaners on the screen, ensuring all are in compartment compartment areas, and not strips. With setboth screws partially tightened, place tray over cleaners, backwire side up and centered onon thewear screen (centering the rods and tray is extremely important).

□

  Beginning with the corner of sides AD, br bring ing rods of sides A and D up and over over the edge of the tray until seated in the groove of the tray. Tighten only the corner set screws, just enough to hold rod in groove. Do not tighten securely. Repeat this procedure in this order: Corners AB, BC, and CD (Note: If you cannot tighten the remaining corners by hand, use the rounded-tip screwdriver. Place tip of screwdriver between rod and edge of tray. Using the tray edge as a leverage point, pry out and up on the rod).

□

Figure 2: Loo ped-Edge Tray Diagram Diagram

  While prying, keep pressure agai against nst the rod with the thumb thumb of opposite opposite hand. B Bring ring the loop loop out and up far enough to clear the edge of the tray. Be careful not to pry too hard: this may cause damage to the screen.

□

  Push the ro rod d into the groove of tthe he tray, tapping lightly with with a hammer, hammer, if needed. While partially ttightening ightening set screws, use slip-joint pliers to squeeze and hold ho ld the rod into the groove of the tray. (Ensure pliers are gripping the plywood, not the screen.)

□

  After partiall partially y tightening al alll corner set screws, partially partially tighten s side ide set screws. Finally, secur securely ely tighten all all corner and side set screws. Return the tray to the Sifter.

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Screen Replacement  

Photo 2: Screen Replacement Using the Looped-Edge Attachment Method

SR (TBB) 5 of 5

 

Lubrication Schedule

LBS (TBB) 1 of 2

 

 Al  Alway way s l oc k o ut the th e electr elec tr ic al pow p ow er befo b efore re l ub ri cat in ing g t he Tru-B Tr u-B alan alance ce B ox-Typ ox -Type e Sifter.

Under Normal Operating Operating Conditi ons The following should be lubricated with Mobilux® EP2 grade grease or a proven, compatible equivalent every 60 days:    

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•

8 Pillow-Block Bearings 2 Tie-Bar Bearings

Photo 1: Pillow-Block Bearing

Photo 2: Tie-Bar Bearing

 

Lubrication Schedule

LBS (TBB) 2 of 2

  The following should be lubricated with an anti-seize lubricant (Grea Greatt Western  recommends the use of Loctite Food Grade Anti-Seize, Part Number 51168) or a proven, compatible equivalent every 60 days:    

• •

2 Shafts of Pinion Assembly (Rack and Pinion Clamping System) 2 Upper Eccentrics (Pneumatic Clamping System)

Photo 3: Pinion Assembly (Rack and Pinion System)

Photo 4: Upper Eccentric (Pneumatic Clamping System)

Under Severe Severe Condition s When operating in an extremely dusty environment, lubricate all bearings and lube points more frequently.

 

Removing, Re moving, Installing, Ad justing , and Maint Ma int aining the Tie-Bar Tie-Bar

 

MTB (TBB) 1 of 3

The Tru-Balance Box-Type Sifter is provided with a tie-bar assembly to synchronize the Sifter’s two counterweights.

Do not attempt to operate the Sifter with the tie-bar assembly loose or disconnected.

  When removing, installing, or adjusting the tie-bar, begin by positioning the Sifter’s counterweights so that both are parallel and facing the rear of the machine as shown in Photo Photo 1. Both throw bl blocks ocks should be positioned in the same direction, facing to the right of the Sifter.

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Photo 1: Counterwe Counterweight ight Pla Placement cement

Removing t he Tie-Bar Tie-Bar   Loosen the throw throw block clamping bolts with a 9/16” 9/16” wrench as shown in Photo 2.

□

  Remove the tie-bar and throw blocks as one unit.

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Photo 2: Throw Throw Bloc k Clamping Bolt

 

Removing, Re moving, Installing, Ad justing , and Maint Ma int aining the Tie-Bar Tie-Bar

 

MTB (TBB) 2 of 3

The original tie-bar equipped on a new Sifter will arrive from the factory preadjusted; h owever, repla replacement cement tie-ba tie-bars rs w ill need adjustment.

Installing the Tie-Bar   Loosen the set collar.

□

  Position the tie-bar (wit (with h the throw blocks attached) under the Sifter Sifter and lilift ft towards the Sifter from both ends.

□

  Slide the throw blocks on to their respective shafts; shafts; ensuring that the key slot located in the throw block aligns with the key located in the shaft.

□

  Continue to slide the throw throw blocks up the shafts unt untilil the bottom of each shaft and the bottom of each throw

□

block are flush.   Securely tighten both throw block clam clamping ping bolts bolts as shown in Photo 2. 2.  

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 Adju  Ad ju st in g t he Tie-B ar The preferred method for adjusting the tie-bar consists of aligning and adjusting the length of the tie-bar.   Adjust the ti tie-bar e-bar using tthe he counterweights to rotate the Sifter to top dead center position, allowing the tie-bar to adjust itself to the proper length. Tighten the set collar and rotate the Sifter by hand. The machine should freely rotate.

□

□

  If ti tight ght spots the rotation are detected, first in inspect the tie-bar assembly for for possible possible problem problems. s. If no apparent physical problems exist, perform the following alternate tie-bar adjustment procedure:   With the counterweights properly positioned parallel towards the rear of the Sifter and the throw blocks pointing to the right, place a straight edge that is long enough to span the width of the Sifter across both of the throw blocks. This straight edge placement is depicted in Photo 3.  3. 

□

Photo 3: Straight Edge Placement

 

Removing, Re moving, Installing, Ad justing , and Maint Ma int aining the Tie-Bar Tie-Bar

 

MTB (TBB) 3 of 3

The tie-bar is properly adjusted when the straight edge is flat against both throw block edges.

  Adjustment of the length of the tie-bar may be necessary to align the tie-bar. One end of the tie-bar iis s equipped with a split set collar. This is the side from which the lengt length h adjustment takes place.

□

  Loosen the socket head screw loc located ated in the set collar with a socket wrench. This will adjust adjust the length of the tie-bar.

□

  After perfor performing ming the tie-bar lengt length h adjustment, check the alignment wi with th a straight edge as described above.

□

  When the alignm alignment ent is corr correct, ect, retighten the socket head screw located in the set collar with a socket wrench.

□

  Check for freedom of rotation.  rotation. 

□

Maintenance Great Western   recommends

lubricating the bearings on the ends of the tie-bar a minimum of every 60 days and/or per plant maintenance schedule.

 

Tru-Balance Box-Type Guards Guards

JTG (TBB) 1 of 3

  The guard package on the Tru-Balance Box-Type Sifter has been designed to allow for easy access to its components. The Sifter’s guard package consists of front/back shields and end guards.

Proper installation installation of the guard package is necessary for safe operation. Do not attempt to run the Sifter when any component of the guard package is removed.

Proper lock-out, tag-out procedures must be followed when any component of the guard p ackage is removed.

Removing Re moving the Front/Back Shields   Lift the shield using the provided handles as shown in Photo 1. It is only necessary to lift the shield to the extent that it clears the bottom brackets.

□

  Angle the bottom of the shield away from the Sifter.

□

  Slide the shield down and out from

□

the Sifter.

Photo 1: Removing the Front/Back Front/Ba ck Shields

 

Tru-Balance Box-Type Guards Guards   Removing Re moving the End Guards   Loosen the top set of screws from the guard. The top screws are identified by the keyhole slot as shown in Photo 2.

□

  Remove the bottom set of screws from the guard.

□

  Lift and slide the guard up through the keyhole slot.

□

  Angle the top of tthe he guard out and away from the Sifter and remove as shown in Photo 3.

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Photo 2: Top Screw and Keyhole Slot

Photo 3: Removing t he Side Gua Guards rds

JTG (TBB) 2 of 3

 

Tru-Balance Box-Type Guards Guards

JTG (TBB) 3 of 3

  Replacing Re placing the Guards   Reverse the guard removal procedure for replacement.

□

The motor guard can be removed individually or kept attached to the larger end guard.

Smaller Sifters have two (2) end guards , one ((1) 1) on each end. Larger Sifters may have four (4) end guards , two (2) on each e end. nd. Regardless, the pro cedure for removing all end g uards is th e same.

Do not attach or weld items items to the guards. The These se actions interfere with the proper use of th e guards.

 

Sifter Balance

SB (TBB) 1 of 1

  The Tru-Balance Box-Type Sifter was assembled and tested at the factory before shipping. It has been balanced to minimize vibration vibration or movement. If after installat installation ion the Sifter does not run smoothly, review the Vibration Troubleshooting  section of this manual for a listing of the most common causes. Some of the typical problems that occur during installation and initial start up are:  

The m mounting ounting platform could be too weak for the Sifter Sifter and its load.

 

The S Sifter ifter is not securely securely fast fastened ened and leveled to the floor or ceiling.

•

 

The tie-bar is out of adjustment.

•

 

The screen frames (trays) are not in the Sifter.

•

 

The Sifter has become overloaded.

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•

 

Troubleshooting  

 Al  Alway way s l oc k out o ut moto mo to r.

Never Ne ver run the Tru-Bala Tru-Balance nce Box-Type Sifter without guards.

Never Ne ver run the Sifter without sieve frames and trays.

Don’t start the Sifter without notice.

Problems and Possible Causes:  Causes:    Leaking or Dusting-Out:   Sieve frames not tightened.   Connecting socks dam damaged aged or improperly installed.   Improper sieve alignment.   Sieve frame damaged.   No Overs: 

  Broken or damaged screen.

  Sieves turned wrong or iimproperly mproperly installed.

T (TBB) 1 of 2

 

Troubleshooting

T (TBB) 2 of 2

    Excessive Overs (Overs Contain Too Much Product):   Load to sifter or product changed.   Screens blinded.   Screens too loose.   Sieves turned wrong or iimproperly mproperly installed.   Sifter Backs Up and Chokes the System:   Sieves turned wrong or iimproperly mproperly installed.   Screens blinded.   Cleaners worn out.   Change in sifter load.   Failing system after the sifter.   Pne Pneumatic umatic Clamping System Not Functionin g (If (If Installed):   Inadequate air pressure.   Ruptured air line.   Faulty cylinder.

Rack ck and Pinion Clamping Clamping System Not Functioning (If (If Installed):   Ra popping ng noise). Can be caused by either a deformation of the   Excessive pinion slippage (often makes a poppi wooden press-top or a worn rack and/or pinion.   Collar digs into chrome plate. Spring and/or ball may need to be replaced.   Machine Will Not Run:   Front/back s shields hields not properly seated in the brackets.   Excessive Vibration:

Troubleshooting  section of this manual.   See the Vibration Troubleshooting section

For further questions concerning troubleshooting the Sifter, contact a

Great Western  representative.

 

Vibration Troubleshooting

VT (TBB) 1 of 2

  When the Tru-Balance Box-Type Sifter is producing excessive vibrations, first identify whether it is due to an imbalance or a mechanical problem; this this can normally be done by simply grabbing hold of the frame. If the frame has a shock or mechanical jolt with each revolution, revolution, it is probably not out of balance. If the frame feels solid but has a swaying or pulling feel, then it is out of balance.  A list of probable probable causes of excessive S Sifter ifter vibration, iin n the sequence generally found to be the cause, fol follows: lows:  

Faulty Bearings in Tie-Bar.  Tie-Bar.   If there is significant movement movement or play in the bearing, or if you can tell the bearing itself is loose, the bearing should be replaced.

 

Improperly Adju sted or Installed Tie Tie-Ba -Bar. r.   Follow the instructio instructions ns for the type of tie-bar installed on your Sifter. Throw blocks should al always ways be installed flush with the bot bottom tom of the shaft. Once the tie-bar is installed and tightened, the Sifter should be revolved revolved by hand. The movement should be uniform wit with h no tight spots or binding feeling. See the Re Removing, moving, Installing, Adjusti ng and Maintaining th e Tie-Bar  Tie-Bar  section  section of this manual.

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   Accu  Ac cu mu lat ion io n o f Mat Materi eri al iin n t he Sift Si ft er.  er.   The increased weight of product accumulated in in the Sifter will will cause it to be out of balance. This is checked and corrected by opening the Sifter and removing removing the sieves. Clean out and re-install the sieves.

•

 

Loose or Brok en Weight Weight Bu cket Keys. Keys.   A full-sized key is used to hold the the weight bucket in the the proper position on the drive shaft. Occasionally the key can wear the bucket knuckle, causi causing ng the bucket to shift slightly and cause the machine to vibrate. This is checked and corrected by loosening the weight buck bucket, et, prying it up, and observing the key; if the key is worn or broken, replace the key and securely tighten the bucket. If the knuckle is worn, the bucket should should be replaced.

 

Improper Leveling Leveling or Loose Mounting. The Sifter should be level on the floor or mounting platform. platform. On installation, shims should should be placed under legs. The anchor bolts should not be used to pull the legs down to the floor. Check for an out of level condition. Movement Movement can also occur if the bolts holding the Sifter Sifter to the floor or ceiling are loose or if the mounting pads have broken.

 

Mounting Platform Platform Too Wea Weak. k.   Occasionally, platforms platforms are designed and built which are not rigid enough to support the Sifter or adequately absorb absorb small vibrations that may occur. This is apparent when a Sifter Sifter runs smoothly without a load but causes the platform platform to shake when loaded. Consult a structural engineer regarding reinforcement of the platform or consult with Great Western  about adding bracing to the Sifter.

 

Bad Pillow-Block Bearings.  Bearings.  The Sifter uses eight (8) pillow-block bearings. Normally, even if the four attached to the Sifter frame go bad, little little can be detected from its operation. However, if any of the four bearings attached to the upper and lower carrier drive frames wear, to where they have significant play, the Sifter will shake excessively. excessively. Remove these bearings and replace them if excessi excessive ve play or wear is detected.

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Vibration Troubleshooting

VT (TBB) 2 of 2

   

Broken Drive Component.  Component.  If the upper or lower carrier driv drive e frames or any of the four bearing frame support arms have broken, a mechanical punch or vibration vibration will result when operating the Sifter. Due to the precision to which these Sifters are manufactured, it is not possible to weld the broken components; they must be replaced. Also verify that the knuckle has not broken loose from from the weight bucket. If it has, the entire bucket assembly should be replaced.

 

Out of Balance.  Balance.  Verify that tthe he lead weights and wooden spacers are in the bucket in the number and sequence shown by checking the weight weight chart on the weight buckets. Generally, if the housi housing, ng, sieves, and weights in the weight bucket have not changed, then the originally balanced Sifter will remain remain in balance.

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TD (TBB) 1 of 3

Technical Data Data  

TBB-100 Series

TBB-200 Series

TBB-300 Series

TBB-400 Series

Inch

67 x 39 x (43 to 75)

75 x 53 x (43 to 75)

78 x 63 x (43 to 75)

82 x 56 x (43 to 75)

Centimeter

170 x 100 x (109 to 191)

191 x 135 x (109 to 191)

199 x 160 x (109 to 191)

208 x 142 x (109 to 191)

Inch*

103 x 100 x (79 to 111)

111 x 120 x (79 to 111)

114x 143 x (79 to 111)

118 x 133 x (79 to 111)

Centimeter*

262 x 254 x (201 to 282)

282 x 305 x (201 to 282)

290 x 364 (201 to 282)

300 x 338 x (201 to 282)

Dimensions: (W x D x H) 

Space Demand: (W x D x H)

Total Weight:  Weight:   (with Crating) Pound Kilogram

≈

1900

≈

862

≈

≈

2150

≈

2600

≈

3200

975

≈

1180

≈

1452

Electrical Data: Voltage

230/460

230/460

230/460

230/460

Horsepower

1.5

1.5

1.5

1.5 (2 Count)

Space Demand: Demand: Ensure ade adequate quate space is in fr ont o f, behind, and on ea each ch sid e of the Tru-Balance Box-Type Sifter for proper safety, operation and maintenance. These dimensions dimensions reflect the space needed needed to remove the sieves plus an additional 18” all around the Sifter.

 

Technical Data Data

TD (TBB) 2 of 3

 

TBB-100 Series

TBB-200 Series

TBB-300 Series

TBB-400 Series

< 85 dB(A)

< 85 dB(A)

< 85 dB(A)

< 85 dB(A)

Minimum Pressure

100 psi 5.5 bar

100 psi 5.5 bar

100 psi 5.5 bar

100 psi 5.5 bar

Maximum Pressure

120 psi 8.3 bar

120 psi 8.3 bar

120 psi 8.3 bar

120 psi 8.3 bar

Quality

Dry, Oil Free

Dry, Oil Free

Dry, Oil Free

Dry, Oil Free

Inch

24-11/16 x 24-11/16

30-7/8 x 30-7/8

30-7/8 x 40-7/8

40-7/8 x 40-7/8

Centimeter

63 x 63

78 x 78

78 x 104

104 x 104

Inch

4 to 6

4 to 6

4 to 6

4 to 6

Centimeter

10 to 15

10 to 15

10 to 15

10 to 15

Noise Emission:

Pneumatic Data:

Sieve Dimension:   Dimension:

Spouting Diameter:   Diameter: 

 

TD (TBB) 3 of 3

Technical Data Data  

 Am bi ent Con  Ambi Condi di ti on s: (For All Models)

Transport Tra nsport and Storage  Storage 

Operation   Operation

Operating Temperature:

Normal Room Temperature

Normal Room Temperature

Humidity:

Dry, Roof Over

Dry, Roof Over

Installation Location:

Read Transport Instructions on Packing

Horizontal, Solid Foundation

 

PL (TBB) 1 of 6

Parts Pa rts L ist   Figure Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 33-A 33-B 33-C 34 35 35-A 35-B 36 37 38 39 40 41

Great Western Item Number

See Pneumatic Clamping  Clamping   000-001-048 400-004-100 400-386-000 000-003-512 000-003-514 400-030-000 400-070-003 000-003-510

300-020-200 000-001-616

Descript ion Inlet Inlet Support Stand Inlet Sock Clamp Pneumatic Press-Top Assy Top Carrier Joint Bolt Washer Joint Bolt Plate Door Bar Clamp Door Tail Nut Acorn Nut 3/8” Washer Door Rod Bracket Door Rod Door Assy Bottom Carrier Vertical Support Rod Lead Weight Wood Spacer Weight Bucket Assy Driven QD Bushing Driven Sheave V-Belt Pin-Type Throw Block Pillow Block Bearing Woodruff Key Bottom Eccentric Center Shaft Top Eccentric Driver Sheave Driver QD Bushing Tie-Bar Assy Shaft-End Bearing Steel Pipe Assy Adjuster Assy Motor Frame Assy Upper Bearing Arm Assy Lower Bearing Arm Assy Vibration Switch Vibration Switch Mounting Plate Pneumatic Control Box Assy End Guard (Motor Side) Front/ Back Shield End Guard (Opposite Motor Side)

 

PL (TBB) 2 of 6

Parts Pa rts L ist   Figure Number 42 43 44

Great Western Item Number

Descript ion Microswitch Microswitch Mounting Bracket Motor Guard

 

Parts Pa rts L ist  

PL (TBB) 3 of 6

 

Parts Pa rts L ist  

PL (TBB) 4 of 6

 

Parts Pa rts L ist  

PL (TBB) 5 of 6

 

Parts Pa rts L ist  

PL (TBB) 6 of 6