HYUNDAI PDF OPERATING & SERVICE MANUALS
http://vk.od.ua/manuals The operator manual contains a number of instructions and safety recommendations regarding driving, handing, lubrication, maintenance, inspection and adjustment of the equipments. The manual is to promote safety maintenance and enhance machine performance. The service manual has been prepared as an aid to improve the quality of repairs by giving the serviceman an accurate understanding of the product and showing him the correct way to perform repairs and make judgments. Make sure you understand the contents of this manual and use it to full effect at every opportunity. This service manual mainly contents the necessary technical information for operation performed in a service workshop. Ask manuals
[email protected]. Specify machine and model what you need. Example: Crawler Excavator R210LC-7. See sample contents and sample pages for R210LC-7 Crawler Excavator below.
Operating Manual Crawler Excavator R210LC-7 http://vk.od.ua CONTENTS Foreword - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 0-1
6. Traveling of the machine - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-15
Before servicing this machine - - - - - - - - - - - - - - - - - - - - - - - - - - 0-2
7. Efficient working method - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-18
EC regulation approved - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 0-3
8. Operation in the special work sites - - - - - - - - - - - - - 4-23
Table to enter S/No and distribution - - - - - - - - - - - - - - - - - - - - - - 0-4
9. Normal operation of excavator - - - - - - - - - - - - - - - - - - - 4-24
Safety labels - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 0-5
10. Attachment lowering - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-25
Guide(Direction, S/No, Symbol) - - - - - - - - - - - - - - - - - - - - - - - - 0-15
11. Storage - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-26 12. RCV lever operating pattern - - - - - - - - - - - - - - - - - - - - - - - 4-28
SAFETY HINTS
13. Switching hydraulic attachment circuit - - - - - - - - 4-29
1. Before operating the machine - - - - - - - - - - - - - - - - - - - - 1-1 2. During operating the machine - - - - - - - - - - - - - - - - - - - - 1-6
TRANSPOTATION
3. During maintenance - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-13
1. Preparation for transportation - - - - - - - - - - - - - - - - - - - - 5-1
4. Parking - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-16
2. Dimension and weight - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-2 3. Loading the machine - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-4
SPECIFICATIONS 1. Major components - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-1
4. Fixing the machine - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-6 5. Loading and unloading by crane - - - - - - - - - - - - - - - - 5-7
2. Specifications - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-2 3. Working range - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-5
MAINTENANCE
4. Weight - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-8
1. Instruction - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-1
5. Lifting capacities - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-11
2. Tightening torque - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-6
6. Bucket selection guide - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-18
3. Fuel, coolant and lubricants - - - - - - - - - - - - - - - - - - - - - - - 6-9
7. Undercarriage - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-20
4. Maintenance check list - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-11
8. Specification for major components - - - - - - - - - - - 2-22
5. Maintenance chart - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-16
9. Recommended oils - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-26
6. Service instruction - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-18 7. Electrical system - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-40
CONTROL DEVICES
8. Air conditioner and heater - - - - - - - - - - - - - - - - - - - - - - - - - - 6-43
1. Cab devices - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-1 2. Cluster - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-2
TROUBLESHOOTING GUIDE
3. Switches - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-9
1. Engine - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-1
4. Levers and pedals - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-14
2. Electrical system - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-2
5. Air conditioner and heater - - - - - - - - - - - - - - - - - - - - - - - - - - 3-17
3. Others - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-3
6. Others - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-20
HYDRAULIC BREAKER AND QUICK CLAMP OPERATION
1. Selecting hydraulic breaker - - - - - - - - - - - - - - - - - - - - - - - - 8-1
1. Suggestion for new machine - - - - - - - - - - - - - - - - - - - - - - 4-1
2. Circuit configuration - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8-2
2. Check before starting the engine - - - - - - - - - - - - - - - 4-2
3. Maintenance - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8-3
3. Starting and stop the engine - - - - - - - - - - - - - - - - - - - - - - 4-3
4. Precaution while operating the breaker - - - - - - 8-4
4. Mode selection system - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-7
5. Quick clamp - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8-6
5. Operation of the working device - - - - - - - - - - - - - - - - - 4-14
INDEX - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 9-1
Sample pages
Operating Manual Crawler Excavator R210LC-7
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8. SPECIFICATIONS FOR MAJOR COMPONENTS 1) ENGINE Specification
Item Model
Cummins B5.9-C
Type
4-cycle turbocharged diesel engine, low emission
Cooling method
Water cooling
Number of cylinders and arrangement
6 cylinders, in-line
Firing order
1-5-3-6-2-4
Combustion chamber type
Direct injection type
Cylinder boreÝstroke
102Ý120mm(4.02"Ý4.72")
Piston displacement
5880cc(359cu in)
Compression ratio
17.4 : 1
Rated gross horse power(SAE J1995
*Cummins 6BTAA
*17.3 : 1
155Hp at 2100rpm(116kW at 2100rpm) *150Hp at 1950rpm(112kW at 1950rpm)
Maximum torque at 1600rpm
*at 1500rpm
62.1kgfÂm(450lbfÂft) *62.6kgfÂm(453lbfÂft)
Engine oil quantity
24˶(6.3U.S. gal)
Dry weight
400kg(882lb)
*496kg(1094lb)
High idling speed
2250 50rpm
*2180 50rpm
Low idling speed
950Ü100rpm
*1050Ü100rpm
Rated fuel consumption
171.5g/HpÂhr at 2100rpm
*164.8g/HpÂhr at 1950rpm
Starting motor
Nippon denso(24V-5.5kW)
*(24V-4.5kW)
Alternator
Delco Remy (24V-50A)
Battery
2Ý12VÝ100Ah
* : TIER II
2) MAIN PUMP Item
[
Specification
Type
Variable displacement tandem axis piston pumps
Capacity
2Ý105cc/rev
Maximum pressure
330kgf/cm2 (4694psi) [360kgf/cm2 (5120psi)]
Rated oil flow
2Ý220˶/min (58.1U.S. gpm/ 48.4U.K. gpm)
Rated speed
2100rpm
] : Power boost
* : TIER II
2-22
*2Ý113cc/rev
*1950rpm
Sample pages
Operating Manual Crawler Excavator R210LC-7
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3) GEAR PUMP Item
Specification
Type
Fixed displacement gear pump single stage
Capacity
15cc/rev
Maximum pressure
35kgf/cm2(500psi)
Rated oil flow
29.3˶/min(7.7U.S. gpm/6.4U.K. gpm)
4) MAIN CONTROL VALVE Item
Specification
Type
9 spools mono-block
Operating method
Hydraulic pilot system
Main relief valve pressure
330kgf/cm2(4695psi)[360kgf/cm2(5120psi)]
Overload relief valve pressure
390kgf/cm2(5550psi)
[ ]: Pooer boost
5) SWING MOTOR Item
Specification
Type
Two fixed displacement axial piston motor
Capacity
151cc/rev
Relief pressure
240kgf/cm2(3414psi)
Braking system
Automatic, spring applied hydraulic released
Braking torque
59kgfÂm(427lbfÂft)
Brake release pressure
33~50kgf/cm2(470~711psi)
Reduction gear type
2 - stage planetary
Swing speed
12.5rpm
6) TRAVEL MOTOR (1) TRAVEL MOTOR(GM35VL, up to #2078) Item
Specification
Type
Variable displacement axial piston motor
Relief pressure
330kgf/cm2(4695psi)
Reduction gear type
3-stage planetary
Braking system
Automatic, spring applied hydraulic released
Brake release pressure
6kgf/cm2(85psi)
Braking torque
40.6kgfÂm(294lbfÂft)
2-23
Sample pages
Operating Manual Crawler Excavator R210LC-7
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(2) TRAVEL MOTOR(RMV147, #2079 and up) Item
ø
Specification
Type
Variable displacement axial piston motor
Relief pressure
330kgf/cm2(4695psi)
Reduction gear type
2-stage planetary
Braking system
Automatic, spring applied hydraulic released
Brake release pressure
11kgf/cm2(156psi)
ø
Braking torque
49.3kgfÂm(357lbfÂft)
ø
ø
325kgf/cm2(4625psi)
11kgf/cm2(157psi) 49.3kgfÂm(357lbfÂft)
: HIGH WALKER
7) REMOTE CONTROL VALVE Item
Specification
Type
Pressure reducing type
Operating pressure
Single operation stroke
Minimum
6.5kgf/cm2(92psi)
Maximum
26kgf/cm2(370psi)
Lever
61mm(2.4in)
Pedal
123mm(4.84in)
8) CYLINDER Specification
Item Boom cylinder
Arm cylinder
Bucket cylinder
Bore diaÝRod diaÝStroke
͚120Ý͚85Ý1290mm
Cushion
Extend only
Bore diaÝRod diaÝStroke
͚140Ý͚100Ý1510mm
Cushion
Extend and retract
Bore diaÝRod diaÝStroke
͚125Ý͚85Ý1055mm
Cushion
Extend only
#͚140Ý͚95Ý1460mm #͚100Ý͚70Ý870mm
ö Discoloration of cylinder rod can occur when the friction reduction additive of lubrication oil spreads on the rod surface. ö Discoloration does not cause any harmful effect on the cylinder performance. # : LONG REACH
2-24
Sample pages
Operating Manual Crawler Excavator R210LC-7
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9) SHOE Item
Width
Ground pressure
Link quantity
Overall width
600mm(24")
0.46kgf/cm2(6.54psi)
49
2990mm(9' 10")
700mm(28")
0.40kgf/cm2(5.69psi)
49
3090mm(10' 2")
800mm(32")
0.35kgf/cm2(4.98psi)
49
3190mm(10' 6")
Standard
800mm(32")
0.42kgf/cm2(5.97psi)
49
3190mm(10' 6")
Standard
600mm(24")
0.49kgf/cm2(6.97psi)
49
3395mm(11' 2")
700mm(28")
0.43kgf/cm2(6.12psi)
49
3495mm(11' 6")
800mm(32")
0.38kgf/cm (5.40psi)
49
3595mm(11' 10")
ö710mm(28")
0.43kgf/cm2(6.12psi)
49
3505mm(11' 6")
Standard R210LC-7 R210LC-7 LONG REACH
Option
R210LC-7 HIGH WALKER
Option
2
ö : Double grouser.
10) BUCKET Capacity
Item
SAE heaped
CECE heaped
0.92m (1.20yd )
0.80m3(1.05yd3)
5
1150mm(45.3")
1270mm(50.0")
0.51m3(0.67yd3)
0.45m3(0.59yd3)
3
700mm(27.6")
820mm(32.3")
0.80m (1.05yd )
0.70m (0.92yd )
5
1000mm(39.4")
1120mm(44.1")
1.10m3(1.44yd3)
0.96m3(1.26yd3)
5
1320mm(52.0")
1440mm(56.7")
1.20m (1.57yd )
1.00m (1.31yd )
6
1400mm(55.1")
1520mm(59.8")
1.34m3(1.75yd3)
1.15m3(1.50yd3)
6
1550mm(61.0")
1670mm(65.7")
ľ0.74m (0.97yd )
0.65m (0.85yd )
5
985mm(38.8")
ľ0.90m3(1.18yd3)
0.80m3(1.05yd3)
5
1070mm(42.0")
ľ1.05m (1.37yd )
0.92m (1.20yd )
5
1290mm(50.8")
Ľ0.87m3(1.14yd3)
0.75m3(0.98yd3)
5
1140mm(44.9")
Ľ1.20m (1.57yd )
1.00m (1.31yd )
5
1410mm(55.5")
Ŀ0.75m3(0.98yd3)
0.65m3(0.85yd3)
-
1790mm(70.5")
3
STD
3
3
3
3
R210LC-7
Width Tooth quantity Without side cutter With side cutter
OPT
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
ľ : Heavy duty bucket Ľ : Rock bucket(Heavy) Ŀ : Slope finishing bucket
2-25
Sample pages
Operating Manual Crawler Excavator R210LC-7
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4. MAINTENANCE CHECK LIST 1) DAILY SERVICE BEFORE STARTING Check items
Service
Page
Fuel tank
Check, Refill
6-25
Hydraulic oil level
Check, Add
6-30
Engine oil level
Check, Add
6-18
Coolant level
Check, Add
6-20
Control panel & pilot lamp
Check, Clean
6-40
Water separator(~#3341)
Check, Drain
6-26
Prefilter(#3342~)
Check, Clean
6-26
Fan belt tension
Check, Adjust
6-24
Service
Page
Drain
6-25
Check, Adjust
6-35
Lubricate
6-33
Swing reduction gear oil
Check, Add
6-33
Swing reduction gear grease
Check, Add
6-33
Lubricate
6-39
Visual check
2) EVERY 50 HOURS SERVICE Check items Fuel tank(Water sediment) Track tension Swing bearing grease
Lubricate pin and bushing ÂBoom cylinder tube end ÂBoom foot ÂBoom cylinder rod end ÂArm cylinder tube end ÂArm cylinder rod end ÂBoom + Arm connecting ÂBucket cylinder tube end ÂBucket cylinder rod end ÂArm + Bucket connecting ÂArm + Link, Bucket control ÂBucket control rod
6-11
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3) INITIAL 50 HOURS SERVICE Check items
Service
Page
Engine oil
Change
6-18, 19
Engine oil filter
Replace
6-18, 19
Prefilter(#3342~)
Replace
6-26-1
Pilot line filter
Replace
6-32
Hydraulic return filter
Replace
6-31
Drain filter cartridge
Replace
6-32
Fuel filter element
Replace
6-26-1
Check, Tight
6-8
Bolts & Nuts ÂSprocket mounting bolts ÂTravel motor mounting bolts ÂSwing motor mounting bolts ÂSwing bearing mounting bolts ÂEngine mounting bolts ÂCounterweight mounting bolts ÂTurning joint locating bolts ÂTrack shoe mounting bolts and nuts ÂHydraulic pump mounting bolts
Service the above items only for the new machine, and thereafter keep the normal service interval.
4) EVERY 100 HOURS SERVICE Check items
Service
Page
ø Return filter
Replace
6-31
ø Pilot line filter
Replace
6-32
ø Air breather element
Replace
6-32
ø Drain cartridge filter
Replace
6-32
ø Replace 4 filters for continuous hydraulic breaker operation only.
5) INITIAL 250 HOURS SERVICE Check items Swing reduction gear oil
6-12
Service
Page
Change
6-33
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6) EVERY 250 HOURS SERVICE Check items
Service
Page
Check, Add
6-40
Hydraulic oil return filter
Replace
6-31
Drain filter cartridge
Replace
6-32
Pilot line filter
Replace
6-32
Check
6-44
Replace
6-32
Check, Tight
6-8
Service
Page
Change
6-34
Service
Page
øEngine oil
Change
6-18, 19
øEngine oil filter
Replace
6-18, 19
Radiator, cooler fin and charge air cooler
Check, Clean
6-23
÷Air cleaner element(Primary)
Check, Clean
6-25
Fuel filter element
Replace
6-26-1
Prefilter(#3342~)
Change
6-26
Battery electrolyte
Aircon & heater flesh filter Air breather element Bolts & Nuts ÂSprocket mounting bolts ÂTravel motor mounting bolts ÂSwing motor mounting bolts ÂSwing bearing mounting bolts ÂEngine mounting bolts ÂCounterweight mounting bolts ÂTurning joint locating bolts ÂTrack shoe mounting bolts and nuts ÂHydraulic pump mounting bolts
7) INITIAL 500 HOURS SERVICE Check items Travel reduction gear oil
8) EVERY 500 HOURS SERVICE Check items
ø If you use high sulfur containing fuel above than 0.5% or use low grade of engine oil reduce change interval. ÷ Clean the primary element only after 500 hours operation or when the air cleaner warning lamp blinks. Replace primary element and safety element after 4 times cleanings of primary element.
6-13
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9) EVERY 1000 HOURS SERVICE Check items
Service
Page
Travel motor reduction gear oil
Change
6-34
Swing reduction gear oil
Change
6-33
Grease in swing gear and pinion
Change
6-33
Service
Page
Change
6-31
Check, Clean
6-31
Change
6-20, 21, 22, 23
10) EVERY 2000 HOURS SERVICE Check items Hydraulic tank øÂOil ÂSuction strainer Coolant
øChange oil every 600 hours of continuous hydraulic breaker operation.
6-14
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11) WHEN REQUIRED Whenever you have trouble in the machine, you must perform the service of related items, system by system. Service
Page
Drain or Clean
6-25
ÂWater separator(~#3341)
Drain or Replace
6-26
ÂPrefilter(#3342~)
Clean or Replace
6-26
ÂFuel filter element
Replace
6-26-1
ÂEngine oil
Change
6-18, 19
ÂEngine oil filter
Replace
6-18, 19
ÂCoolant
Add or Change
6-20, 21, 22, 23
ÂRadiator
Clean or Flush
6-20, 21, 22, 23
Check
6-23
Replace
6-25
ÂHydraulic oil
Add or Change
6-30
ÂReturn filter
Replace
6-31
ÂDrain line filter
Replace
6-32
ÂPilot line filter
Replace
6-32
ÂElement of breather
Replace
6-32
Clean
6-31
Check, Adjust
6-35
ÂTooth
Replace
6-37
ÂSide cutter
Replace
6-37
Adjust
6-36
Replace
6-36
Clean, Replace
6-43
Clean
6-44
Check items Fuel system ÂFuel tank
Engine lubrication system
Engine cooling system
ÂCharge air cooler Engine air system ÂAir cleaner element Hydraulic system
ÂSuction strainer Under carriage ÂTrack tension Bucket
ÂLinkage ÂBucket assy Air conditioner and heater ÂFresh filter ÂRecirculation filter
6-15
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7. ELECTRICAL SYSTEM 1) WIRING, GAUGES Check regularly and repair loose or malfunctioning gauges when found.
13036MI29
2) BATTERY (1) Check and repair Η Check the electrolyte level and fill with distilled water to the prescribed level as necessary. Θ Wash the terminal with hot water if it is contaminated, and apply grease to the terminals after washing. Do not stain clothes or skin with electrolyte as it is acid. Be careful not to get the electrolyte in eyes. Wash with clean water and go to the doctor if it enters the eyes. ö Remove the fire and spark around battery.
Plug
Upper level Lower level 10 ~15mm
13036MI30
(2) Specific gravity of battery Judge the charging rate of battery by the specific gravity. The specific gravity changes by the ambient temperature. Check the charging rate by referring to the chart below. Temperature
20Á C (68Á F)
10Á C (50Á F)
-10Á C (14Á F)
100%
1.26
1.27
1.28
90%
1.24
1.25
1.26
80%
1.22
1.23
1.24
75%
1.21
1.22
1.23
Charging rate
(3) Method of removing the battery cable Remove the cable from the ground connection first( terminal side) and reconnect it last when reassembling.
Specific gravity meter Height of sight Battery
13036MI31
Ground
Battery relay 13036MI32
6-40
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3) STARTING THE ENGINE WITH A BOOSTER CABLE Keep following order when you are going to start engine using booster cable. (1) Connection of booster cable ö Use the same capacity of battery for starting. Η Make sure that the starting switches of the normal machine and trouble machine are both at the OFF position. Θ Connect the red terminal of booster cable to the battery (+) terminal between exhausted and new battery. Ι Connect the black terminal of the booster cable between new battery (-) terminal and chassis of trouble machine. ö Keep firmly all connection, the spark will be caused when connecting finally.
Connection of booster cable Red Ι
Η
Θ
Trouble(Exhausted) Normal(New) machine machine Black Κ To chassis of trouble machine
Connection order : ΗĄΘĄΙĄΚ 13036MI33
(2) Starting the engine Η Starting the engine of the normal machine and keep it to run at high idle. Θ Start engine of the trouble machine with starting switch. Ι If you can not start it by one time, restart the engine after 2 minutes.
(3) Taking off the booster cable Η Take off the booster cable(black). Θ Take off the booster cable(red) connected to the (+) terminal. Ι Run engine with high idle until charging the exhausted battery by alternator, fully. Explosive gas is generated while using the battery or charging it. Keep away flame and be careful not to cause the spark. ö Charge the battery in the well ventilated place. ö Place the machine on the earth or concrete. Avoid charging the machine on the steel plate. ö Do not connect (+) terminal and (-) terminal when connecting booster cable because it will be shorted.
6-41
START ON OFF
21076MA29
Disconnection of booster cable
Red Ι
Θ
Η
Trouble(Exhausted) Normal(New) machine machine Black Κ To chassis of trouble machine
Disconnection order : ΚĄΙĄΘĄΗ
13036MI33
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Operating Manual Crawler Excavator R210LC-7
(4) Welding repair Before start to welding, follow the below procedure. Η Shut off the engine and remove the starting switch. Θ Disconnect ground cable from battery by master switch. Ι Before carrying out any electric welding on the machine, the battery cables should be disconnected and the connectors pulled out of the electronic control units(CPU, cluster etc). Κ Connect the earth(ground) lead of the welding equipment as close to the welding point as possible. ö Do not weld or flame cut on pipes or tubes that contain flammable fluids. Clean them thoroughly with nonflammable solvent before welding or flame cutting on them. Do not attempt to welding work before carry out the above. If not, it will caused serious damage at electric CAPO system.
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Y
R
G
7
C0L 45 10 EX 21 OB -3 L:R NB DE :21 MORT NO PA
-51
CN -50
CN
CPU Controller
OFF
Master switch DA
Cluster
I
UN
HY
de
r Mo
we
Po
rk Wo
Tra
de Mo
er
Us
d ee Sp
t lec Se
cel
to Au
Battery
vel
de Mo De
CN-56
21076MI35
6-42
SERVICE MANUAL CRAWLER EXCAVATOR R210LC-7 Content FOREWORD INDEX SECTION 1 GENERAL Group 1 Safety Hints Group 2 Specifications SECTION 2 STRUCTUREND FUNCTION Group 1 Pump Device Group 2 Main Control Valve Group 3 Swing Device Group 4 Travel Device Group 5 RCV Lever Group 6 RCV Pedal SECTION 3 HYDRAULIC SYSTEM Group 1 Hydraulic Circuit Group 2 Main Circuit Group 3 Pilot Circuit Group 4 Single Operation Group 5 Combined Operation SECTION 4 ELECTRICAL SYSTEM Group 1 Component Location Group 2 Electrical Circuit(up to #1000) Group 3 Electrical Component Specification Group 4 Connectors Group 5 Electrical Circuit(#1001 and up, Tier 2) SECTION 5 MECHATROMICS SYSTEM Group 1 Outline(up to #1000) Group 2 Mode selection System(up to #1000) Group 3 Automatic Deceleration System Group 4 Power Boost System Group 5 Travel Speed Control System Group 6 Automatic Warming Up Function Group 7 Engine Overheat Prevention Function Group 8 Anti-Restart System Group 9 Self-Diagnostic System Group 10 Engine Control System Group 11 EPPR(Electro Proportional Pressure Reducing) Valve Group 12 Prolix Switch(up to #0179) Group 13 Monitoring System Group 14 Outline(#1001 and up, Tier 2) Group 15 Mode selection system (#1001 and up, Tier 2)
SECTION 6 TROUBLESHOOTING Group 1 Before troubleshooting Group 2 Hydraulic and Mechanical System Group 3 Electrical System Group 4 Mechatronics System Mechatronics System(#1001 and up,Tier 2) Group 5 SECTION 7 MAINTENANCE STANDARD Group 1 Operational Performance Test Group 2 Major Components Group 3 Track and Work Equipment SECTION 8 DISASSEMBLY AND ASSEMBLY Group 1 Precaution Group 2 Tightening Torque Group 3 Pump Device Group 4 Main Control Valve Group 5 Swing Device Group 6 Travel Device Group 7 RCV Lever Group 8 Turning Joint Group 9 Boom, Arm and Bucket Cylinder Group 10 Undercarriage Group 11 Work Equipment SECTION 9 COMPONENT MOUNTING TORQUE Group 1 Introduction guide Group 2 Engine system Group 3 Electric system Group 4 Hydraulic system Group 5 Undercarriage Group 6 Structure Group 7 Work equipment
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GROUP 6 AUTOMATIC WARMING UP FUNCTION
Engine
Coolant temp sensor
Main pump Accel actuator
Fuel injection pump
Pilot pump
Max flow CO valve
P M
Motor drive signal
Potentiometer signal
Coolant temperature signal
EPPR valve
Drive signal Warming up lamp signal
CPU controller
21075MS08
1. CPU controller reads engine coolant temperature through the temperature sensor, and if the coolant C, it increases the engine speed from key start rpm to 1200rpm. At this temperature is less than 30° time the mode does not change. 2. In case of the coolant temperature increases up to 30° C,the engine speed is decreased to key start speed. And if an operator changes mode set during the warming up function, the CPU controller cancels the automatic warming up function. 3. LOGIC TABLE Description
Condition
Function
Actuated
- Coolant temperature : Less than 30° C(After engine run) - Accel dial position is under 3
- Mode : Default(S mode) - Warming up time : 10 minutes(Max) - Warming up lamp : ON - Default mode - Default mode - Changed mode
Canceled
- Coolant temperature : Above 30° C - Warming up time : Above 10 minutes - Changed mode set by operator - Increase engine speed by rotating accel dial clockwise ※ If any of the above conditions is applicable, the automatic warming up function is canceled - Coolant temperature : Above 30° C
- Warming up lamp : OFF
Warming up lamp
5-9
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GROUP 3 PUMP DEVICE 1. REMOVAL AND INSTALL 1) REMOVAL (1) Lower the work equipment to the ground and stop the engine. (2) Operate the control levers and pedals several times to release the remaining pressure in the hydraulic piping (3) Loosen the breather slowly to release the pressure inside the hydraulic tank. Escaping fluid under pressure can penetrate the skin causing serious injury.
13031GE18
9 74
2
A
(4) Loosen the drain plug under the hydraulic tank and drain the oil from the hydraulic tank. ・ Hydraulic tank quantity : 180ℓ
1
A
(5) Remove socket bolts(74) and disconnect pipe(9).
72
3
(6) Disconnect pilot line hoses(4, 5, 6, 7, 8, 9).
21078DA01
(7) Remove socket bolts(72) and disconnect pump suction tube(3). ※ When pump suction tube is disconnected, the oil inside the piping will flow out, so catch it in oil pan.
69
55
58
3
A
64 a4 1
i1
m
P
P
(8) Sling the pump assembly and remove the pump mounting bolts. ・ Weight : 120kg(265lb) ※ Pull out the pump assembly from housing. When removing the pump assembly, check that all the hoses have been disconnected.
r
D
v
Ps
71
3 B
49
P i2 2
m
P
48 78
8-7
21078DA02
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Service Manual Crawler Excavator R210LC-7
2) INSTALL (1) Carry out installation in the reverse order to removal. (2) Remove the suction strainer and clean it. (3) Replace return filter with new one. (4) Remove breather and clean it. (5) After adding oil to the hydraulic tank to the specified level. (6) Bleed the air from the hydraulic pump. ① Remove the air vent plug(2EA). ② Tighten plug lightly. ③ Start the engine, run at low idling, and check oil come out from plug. ④ Tighten plug. (7) Start the engine, run at low idling(3~5 minutes) to circulate the oil through the system. (8) Confirm the hydraulic oil level and check the hydraulic oil leak or not.
8-8
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2. MAIN PUMP(1/2) 1) STRUCTURE A 702 789, 732 532 214 548 531 724 792 534 901 808 954 717 151 152 211 113
04
535 806 953 886 717 406 261 774
111 824 127 710 123 251 212 490
04 111 113 114 123 124 127 141 151 152 153 156 157 158 211 212 214
153
156 158 157 468 313 124 312 114 466 728 725
Gear pump Drive shaft(F) Drive shaft(R) Spline coupling Roller bearing Needle bearing Bearing spacer Cylinder block Piston Shoe Set plate Bushing Cylinder spring Spacer Shoe plate Swash plate Bushing
251 261 271 312 313 314 401 406 466 468 490 531 532 534 535 548 702
885
Support Seal cover(F) Pump casing Valve block Valve plate(R) Valve plate(L) Hexagon socket bolt Hexagon socket bolt VP Plug VP Plug Plug Tilting pin Servo piston Stopper(L) Stopper(S) Pin O-ring
8-9
314
141
271
401 (210-7) 8-9
710 717 724 725 728 732 774 789 792 806 808 824 885 886 901 953 954
O-ring O-ring O-ring O-ring O-ring O-ring Oil seal Back up ring Back up ring Hexagon head nut Hexagon head nut Snap ring Pin Spring pin Eye bolt Set screw Set screw
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MAIN PUMP(2/2)
544
543 545 541
079
VIEW A
541 543
Seat Stopper 1
544 545
Stopper 2 Steel ball
8-10
(210-7) 8-10
079
Proportional reducing valve
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2) TOOLS AND TIGHTENING TORQUE (1) Tools The tools necessary to disassemble/reassemble the pump are shown in the follow list. Tool name & size
Part name
Name
B
Hexagon socket head bolt
PT plug (PT thread)
PO plug (PF thread)
Hexagon socket head setscrew
Allen wrench
4
M 5
BP-1/16
-
M 8
5
M 6
BP-1/8
-
M10
6
M 8
BP-1/4
PO-1/4
M12, M14
8
M10
BP-3/8
PO-3/8
M16, M18
17
M20, M22
PO-1, 1 1/4, 1 1/2
-
B
Double ring spanner, socket wrench, double(Single) open end spanner B
BP-1
-
Hexagon socket head bolt
Henagon nut
VP plug (PF thread)
19
M12
M12
VP-1/4
24
M16
M16
-
27
M18
M18
VP-1/2
30
M20
M20
-
36
-
-
VP-3/4
Adjustable angle wrench
Medium size, 1 set
Screw driver
Minus type screw driver, Medium size, 2 sets
Hammer
Plastic hammer, 1 set
Pliers
For snap ring, TSR-160
Steel bar
Steel bar of key material approx. 10×8×200
Torque wrench
Capable of tightening with the specified torques
8-11
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(2) Tightening torque Part name Hexagon socket head bolt Material : SCM435)
PT Plug(Materal : S45C) ※Wind a seal tape 1 1/2 to 2 turns round the plug
PF Plug(Materal : S45C)
Bolt size
Torque
Wrench size
kgf・m
lbf・ft
in
mm
M 5
0.7
5.1
0.16
4
M 6
1.2
8.7
0.20
5
M 8
3.0
21.7
0.24
6
M10
5.8
42.0
0.31
8
M12
10.0
72.3
0.39
10
M14
16.0
116
0.47
12
M16
24.0
174
0.55
14
M18
34.0
246
0.55
14
M20
44.0
318
0.67
17
PT1/16
0.7
5.1
0.16
4
PT 1/8
1.05
7.59
0.20
5
PT 1/4
1.75
12.7
0.24
6
PT 3/8
3.5
25.3
0.31
8
PT 1/2
5.0
36.2
0.39
10
PF 1/4
3.0
21.7
0.24
6
PF 1/2
10.0
72.3
0.39
10
PF 3/4
15.0
109
0.55
14
PF 1
19.0
137
0.67
17
PF 1 1/4
27.0
195
0.67
17
PF 1 1/2
28.0
203
0.67
17
8-12
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3) DISASSEMBLY (1) Select place suitable to disassembling. ※ Select clean place. ※ Spread rubber sheet, cloth or so on on overhaul workbench top to prevent parts from being damaged. (2) Remove dust, rust, etc, from pump surfaces with cleaning oil or so on. (3) Remove drain port plug(468) and let oil out of pump casing(Front and rear pump). (4) Remove hexagon socket head bolts(412, 413) and remove regulator.
(210-7) MP01
(5) Loosen hexagon socket head bolts(401) which tighten swash plate support(251), pump casing(271) and valve block(312). ※ If gear pump and so on are fitted to rear face of pump, remove them before starting this work. (6) Place pump horizontally on workbench with its regulator-fitting surface down and separate pump casing(271) from valve block(312). ※ Before bringing this surface down, spread rubber sheet on workbench without fail to prevent this surface from being damaged.
(210-7) MP02
8-13
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(7) Pull cylinder block(141) out of pump casing(271) straightly over drive shaft(111). Pull out also pistons(151), set plate(153), spherical bush(156) and cylinder springs(157) simultaneously. ※ Take care not to damage sliding surfaces of cylinder, spherical bushing, shoes, swash plate, etc. (210-7) MP03
(8) Remove hexagon socket head bolts(406) and then seal cover(F, 261). ※ Fit bolt into pulling out tapped hole of seal cover(F), and cover can be removed easily. ※ Since oil seal is fitted on seal cover(F), take care not to damage it in removing cover. (9) Remove hexagon socket head bolts(408) and then seal cover(R, 262). In case fitting a gear pump, first, remove gear pump.
(210-7) MP04
(10) Tapping lightly fitting flange section of swash plate support(251) on its pump casing side, separate swash plate support from pump casing.
(210-7) MP05
(11) Remove shoe plate(211)and swash plate(212) from pump casing(271).
(210-7) MP06
8-14
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(12) Tapping lightly shaft ends of drive shafts (111, 113) with plastic hammer, take out drive shafts from swash plate supports.
(210-7) MP07
(13) Remove valve plates(313, 314) from valve block(312). ※ These may be removed in work(6).
(210-7) MP08
(14) If necessary, remove stopper(L, 534), stopper(S, 535), servo piston(532) and tilting pin(531) from pump casing(271), and needle bearing(124) and splined coupling(114) from valve block(312). ※ In removing tilting pin, use a protector to prevent pin head from being damaged. ※ Since loctite is applied to fitting areas of tilting pin and servo piston, take care not to damage servo piston. ※ Do not remove needle bearing as far as possible, except when it is considered to be out of its life span. ※ Do not loosen hexagon nuts of valve block and swash plate support. If loosened, flow setting will be changed.
8-15
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4) ASSEMBLY (1) For reassembling reverse the disassembling procedures, paying attention to the following items. ① Do not fail to repair the parts damaged during disassembling, and prepare replacement parts in advance. ② Clean each part fully with cleaning oil and dry it with compressed air. ③ Do not fail to apply clean working oil to sliding sections, bearings, etc. before assembling them. ④ In principle, replace seal parts, such as O-rings, oil seals, etc. ⑤ For fitting bolts, plug, etc., prepare a torque wrench or so on, and tighten them with torques shown in page 8-11, 12. ⑥ For the double-pump, take care not to mix up parts of the front pump with those of the rear pump. (2) Fit swash plate support(251) to pump casing(271), tapping the former lightly with a hammer. ※ After servo piston, tilting pin, stopper(L) and stopper(S) are removed, fit them soon to pump casing in advance for reassembling. ※ In tightening servo piston and tilting pin, use a protector to prevent tilting pin head and feedback pin from being damaged. In addition, apply loctite(Medium strength) to their threaded sections.
(210-7) MP09
8-16
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(3) Place pump casing with its regulator fitting surface down, fit tilting bush of swash plate to tilting pin(531) and fit swash plate (212) to swash plate support(251) correctly. ※ Confirm with fingers of both hands that swash plate can be removed smoothly. ※ Apply grease to sliding sections of swash plate and swash plate support, and drive shaft can be fitted easily.
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(210-7) MP10
(4) To swash plate support(251), fit drive shaft(111) set with bearing(123), bearing spacer(127) and snap ring(824). ※ Do not tap drive shaft with hammer or so on. ※ Assemble them into support, tapping outer race of bearing lightly with plastic hammer. Fit them fully, using steel bar or so on.
(210-7) MP11
(5) Assemble seal cover(F, 261) to pump casing(271) and fix it with hexagon socket head bolts(406). ※ Apply grease lightly to oil seal in seal cover(F). ※ Assemble oil seal, taking full care not to damage it. ※ For tandem type pump, fit rear cover(263) and seal cover(262) similarly.
(210-7) MP12
(6) Assemble piston cylinder subassembly 〔cylinder block(141), piston subassembly (151, 152), set plate(153), spherical bush (156), spacer(158) and cylinder spring (157)〕. Fit spline phases of retainer and cylinder. Then, insert piston cylinder subassembly into pump casing. (210-7) MP13
8-17
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(7) Fit valve plate(313) to valve block(312), entering pin into pin hole. ※ Take care not to mistake suction / delivery directions of valve plate.
(210-7) MP14
(8) Fit valve block(312) to pump casing(271) and tighten hexagon socket head bolts (401). ※ At first assemble this at rear pump side, and this work will be easy. ※ Take care not to mistake direction of valve block. ※ Clockwise rotation(Viewed from input shaft side) - Fit block with regulator up and with delivery flange left, viewed from front side. ※ Counter clockwise rotation(Viewed from input shaft side) - Fit block with delivery flange right, viewed from front side.
(210-7) MP16
(9) Putting feedback pin of tilting pin into feedback lever of regulator, fit regulator and tighten hexagon socket head bolts (412, 413). ※ Take care not to mistake regulator of front pump for that of rear pump.
(210-7) MP17
(10) Fit drain port plug(468). This is the end of reassembling procedures.
8-18
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3. REGULATOR 1) STRUCTURE(1/2) 412
875
874
755 A
897
858
B
614
612
615 613 A
611
B
647 648
KR3G-9C32
A
P2 Pf
723 642
438 801
801
Pm Pi
924 641
730
643
708
644
645
646
728
B
SECTION B-B (210-7) 8-19
413
438
656
438 735 722
496
724
725
436
VIEW C
8-19
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REGULATOR(2/2) 734
653
654
836
651 652
601
624
629
630
628
655
641
801 C 925
814 898 631
627
732
733
732
622
621
623
625
626
887
763
756
SECTION A-A (210-7) 8-20
412 413 436 438 496 601 611 612 613 614 615 621 622 623 624 625 626 627 628 629
Hexagon socket screw Hexagon socket screw Hexagon socket screw Hexagon socket screw Plug Casing Feed back lever Lever(1) Lever(2) Fulcrum plug Adjust plug Compensator rod Piston case Compensator rod Spring seat(C) Outer spring Inner spring Adjust stem(C) Adjust screw(C) Cover(C)
630 631 641 642 643 644 645 646 647 648 651 652 653 654 655 656 708 722 724 725
Nut Sleeve Pilot cover Pilot cover(QMC) Pilot piston Spring seat(Q) Adjust stem(Q) Pilot spring Stopper Piston(QMC) Sleeve Spool Spring seat Return spring Set spring Block cover O-ring O-ring O-ring O-ring 8-20
728 730 732 733 734 735 755 756 763 801 814 836 858 874 875 887 897 898 924 925
O-ring O-ring O-ring O-ring O-ring O-ring O-ring O-ring O-ring Nut Snap ring Snap ring Snap ring Pin Pin Pin Pin Pin Set screw Adjust screw(Q)
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2) TOOLS AND TIGHTENING TORQUE (1) Tools The tools necessary to disassemble/reassemble the pump are shown in the follow list. Tool name & size Name Allen wrench B
Double ring spanner, socket wrench, double(Single) open end spanner
Part name B
Hexagon socket head bolt
PT plug (PT thread)
PO plug (PF thread)
Hexagon socket head setscrew
4
M 5
BP-1/16
-
M 8
5
M 6
BP-1/8
-
M10
6
M 8
BP-1/4
PO-1/4
M12, M14
-
Hexagon head bolt
Hexagon nut
VP plug (PF thread)
6
M 8
M 8
-
B
Adjustable angle wrench
Small size, Max 36mm
Screw driver
Minus type screw driver, Medium size, 2 sets
Hammer
Plastic hammer, 1 set
Pliers
For snap ring, TSR-160
Steel bar
4×100mm
Torque wrench
Capable of tightening with the specified torques
Pincers
-
Bolt
M4, Length : 50mm
8-21
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(2) Tightening torque Part name Hexagon socket head bolt Material : SCM435)
PT Plut(Materal : S45C) ※Wind a seal tape 1 1/2 to 2 turns round the plug
PF Plut(Materal : S35C)
Bolt size
Torque
Wrench size
kgf・m
lbf・ft
in
M 5
0.7
5.1
0.16
4
M 6
1.2
8.7
0.20
5
M 8
3.0
21.7
0.24
6
M10
5.8
42.0
0.31
8
M12
10.0
72.3
0.39
10
M14
16.0
116
0.47
12
M16
24.0
174
0.55
14
M18
34.0
246
0.55
14
M20
44.0
318
0.67
17
PT1/16
0.7
5.1
0.16
4
PT 1/8
1.05
7.59
0.20
5
PT 1/4
1.75
12.7
0.24
6
PT 3/8
3.5
25.3
0.31
8
PT 1/2
5.0
36.2
0.39
10
PF 1/4
3.0
21.7
0.24
6
PF 1/2
10.0
72.3
0.39
10
PF 3/4
15.0
109
0.55
14
PF 1
19.0
137
0.67
17
PF 1 1/4
27.0
195
0.67
17
PF 1 1/2
28.0
203
0.67
17
8-22
mm
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3) DISASSEMBLY Since the regulator consists of small precision finished parts, disassembly and assembly are rather complicated. For this reason, replacement of a regulator assembly is recommended, unless there is a special reason, but in case disassembly is necessary for an unavoidable reason, read through this manual to the end before starting disassembly. (1) Choose a place for disassembly. ※ Choose a clean place. ※ Spread rubber sheet, cloth, or so on on top of work-bench to prevent parts from being damaged. (2) Remove dust, rust, etc. from surfaces of regulator with clean oil. (3) Remove hexagon socket head screw (412, 413) and remove regulator main body from pump main body. ※ Take care not to lose O-ring.
(210-7) REG01
(4) Remove hexagon socket head screw (438) and remove cover(C,629) ※ Cover(C) is fitted with adjusting screw (C,QI) (628, 925), adjusting ring(C, 627), lock nut(630), hexagon nut(801) and adjusting screw(924). Do not loosen these screws and nuts. If they are loosened, adjusted pressureflow setting will vary.
(210-7) REG02
8-23
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(5) After removing cover(C, 629) subassembly, take out outer spring(625), inner spring (626) and spring seat(C, 624) from compensating section. Then draw out adjusting ring(Q, 645), pilot spring(646) and spring seat(644) from pilot section. ※ Adjusting ring(Q,645) can easily be drawn out with M4 bolt.
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(210-7) REG03
(6) Remove hexagon socket head screws (436, 438) and remove pilot cover(641). After removing pilot cover, take out set spring(655) from pilot section.
(210-7) REG04
(7) Remove snap ring(814) and take out spring seat(653), return spring(654) and sleeve(651). ※ Sleeve(651) is fitted with snap ring(836). ※ When removing snap ring(814), return spring(654) may pop out. Take care not to lose it.
(210-7) REG05
(8) Remove locking ring(858) and take out fulcrum plug(614) and adjusting plug (615). ※ Fulcrum plug(614) and adjusting plug (615) can easily be taken out with M6 bolt.
(210-7) REG06
8-24
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(210-7) REG07
(9) Remove lever(2, 613). Do not draw out pin(875). ※ Work will be promoted by using pincers or so on.
(210-7) REG08
(10) Draw out pin(874) and remove feedback lever(611). Push out pin(874, 4mm in dia.) from above with slender steel bar so that it may not interfere with lever(1, 612).
(210-7) REG09
(210-7) REG10
8-25
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(11) Remove lever(1, 612). pin(875).
Do not draw out
(12) Draw out pilot piston(643) and spool(652). (13) Draw out piston case(622), compensating piston(621) and compensating rod(623). ※ Piston case(622) can be taken out by pushing compensating rod(623) at opposite side of piston case. This completes disassembly.
8-26
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Service Manual Crawler Excavator R210LC-7
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4) ASSEMBLY (1) For assembly, reverse disassembly procedures, but pay attention to the following items. ① Always repair parts that were scored at disassembly. ② Get replacement parts ready beforehand. Mixing of foreign matter will cause malfunction. Therefore, wash parts well with cleaning oil, let them dry with jet air and handle them in clean place. ③ Always tighten bolts, plugs, etc. to their specified torques. ④ Do not fail to coat sliding surfaces with clean hydraulic oil before assembly. ⑤ Replace seals such as O-ring with new ones as a rule. (2) Put compensating rod(623) compensating hole of casing(601).
into
(3) Put pin force-fitted in lever(1, 612) into groove of compensating rod and fit lever (1) to pin force-fitted in casing.
(4) Fit spool(652) and sleeve(651) into hole in spool of casing. ※ Confirm that spool and sleeve slide smoothly in casing without binding. ※ Pay attention to orientation of spool. Spool Feedback lever (210-7) 8-27
8-27
Sample pages
Service Manual Crawler Excavator R210LC-7
(5) Fit feedback lever(611), matching its pin hole with pin hole in spool. Then insert pin(874). ※ Insert pin in feedback lever a little to ease operation. ※ Take care not to mistake direction of feedback lever.
Lever (1) side
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Lever (2) side (Fulcrum plug of adjusting plug side)
(210-7) 8-28
(6) Put pilot piston(643) into pilot hole of casing. ※ Confirm that pilot piston slides smoothly without binding. (7) Put pin force-fitted in lever(2, 613) into groove of pilot piston. Then fix lever(2). (210-7) REG11
(8) Fit fulcrum plug(614) so that pin forcefitted in fulcrum plug(614) can be put into pin hole of lever(2). Then fix locking ring(858). (9) Insert adjusting plug(615) and fit locking ring. ※ Take care not to mistake inserting holes for fulcrum plug and adjusting plug. At this point in time move feedback lever to confirm that it has no large play and is free from binding.
(210-7) REG12
(10) Fit return spring(654) and spring seat (653) into spool hole and attach snap ring (814).
(210-7) REG13
8-28
Sample pages
Service Manual Crawler Excavator R210LC-7
http://vk.od.ua/manuals
(11) Fit set spring(655) to spool hole and put compensating piston(621) and piston case(622) into compensating hole. Fit pilot cover(641) and tighten it with hexagonal socket head screws(436, 438).
(210-7) REG14
(12) Put spring seat(644), pilot spring(646) and adjusting ring(Q, 645) into pilot hole. Then fix spring seat(624), inner spring (626) and outer spring(625) into compensating hole. ※ When fitting spring seat, take care not to mistake direction of spring seat.
(210-7) REG15
(13) Install cover(C, 629) fitted with adjusting screws(628, 925), adjusting ring(C, 627), lock nut(630), hexagon nut(801) and adjusting screw(924). Then tighten them with hexagonal socket head screws(438).
This completes assembly.
(210-7) REG16
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