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KOMATSU PC200Z-6LE HYDRAULIC EXCAVATOR SERVICE REPAIR MANUAL (SN:A83001 & UP) KOMATSU PC200Z-6LE – PDF DOWNLOAD

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  • KOMATSU PC200Z-6LE HYDRAULIC EXCAVATOR SERVICE REPAIR MANUAL
  • SERIAL NUMBER:A83001 & UP
  • PUBLICATION NUMBER:CEBM001700
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Description

KOMATSU PC200Z-6LE HYDRAULIC EXCAVATOR SERVICE REPAIR MANUAL (SN:A83001 & UP) KOMATSU PC200Z-6LE

KOMATSU PC200Z-6LE HYDRAULIC EXCAVATOR SERVICE REPAIR MANUAL (SN:A83001 & UP) KOMATSU PC200Z-6LE – PDF DOWNLOAD:

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KOMATSU PC200Z-6LE HYDRAULIC EXCAVATOR SERVICE REPAIR MANUAL (SN:A83001 & UP) KOMATSU PC200Z-6LE

  • This shop manual has been prepared as an aid to improve the quality of repairs by giving the serviceman an accurate understanding of the product and by showing him the correct way to perform repairs and make judgements. Make sure you understand the contents of this manual and use it to full effect at every opportunity.
  • This shop manual mainly contains the necessary technical information for operations performed in a service workshop. For ease of understanding, the manual is divided into the following sections. These sections are further divided into each main group of components.
  • GENERAL
    This section lists the general machine dimensions, performance specifications, component weights, and fuel, coolant and lubricant specification charts.
  • STRUCTURE AND FUNCTION
    This section explains the structure and function of each component. It serves not only to give an understanding of the structure, but also serves as reference material for troubleshooting.
  • TESTING AND ADJUSTING
    This section explains checks to be made before and after performing repairs, as well as adjustments to be made at completion of the checks and repairs. Troubleshooting charts correlating “Problems” to “Causes” are also included in this section.
  • DISASSEMBLY AND ASSEMBLY
    This section explains the order to be followed when removing, installing, disassembling or assembling each component, as well as precautions to be taken for these operations.
  • MAINTENANCE STANDARD
    This section gives the judgement standards when inspecting disassembled parts.

TABLE OF CONTENTS:

KOMATSU PC200Z-6LE HYDRAULIC EXCAVATOR SERVICE REPAIR MANUAL (SN:A83001 & UP) KOMATSU PC200Z-6LE

MAIN MENU.................................................................................................................  0
COVER.....................................................................................................................  1
CONTENTS..................................................................................................................  2
01 GENERAL................................................................................................................ 20
	GENERAL ASSEMBLY DRAWING.............................................................................................. 21
	SPECIFICATIONS........................................................................................................ 23
	WEIGHT TABLE.......................................................................................................... 25
	FUEL, COOLANT AND LUBRICANTS.......................................................................................... 27
	ENGINE OIL SPECIFICATION.............................................................................................. 28
		NORMAL OPERATION.................................................................................................. 28
		ARCTIC OPERATION.................................................................................................. 28
	COOLANT............................................................................................................... 29
10 STRUCTURE AND FUNCTION................................................................................................. 30
	ENGINE RELATED PARTS.................................................................................................. 33
		SPECIFICATIONS.................................................................................................... 33
	RADIATOR - OIL COOLER................................................................................................. 34
		SPECIFICATIONS.................................................................................................... 34
	ENGINE CONTROL SYSTEM................................................................................................. 35
	POWER TRAIN........................................................................................................... 36
	FINAL DRIVE........................................................................................................... 37
		SPECIFICATIONS.................................................................................................... 37
	SWING CIRCLE.......................................................................................................... 38
		SPECIFICATIONS.................................................................................................... 38
	SWING MACHINERY....................................................................................................... 39
		SPECIFICATIONS.................................................................................................... 39
	TRACK FRAME - RECOIL SPRING........................................................................................... 40
		SPECIFICATIONS.................................................................................................... 40
	TRACK SHOE............................................................................................................ 41
		STANDARD SHOE..................................................................................................... 41
		SELECTION OF TRACK SHOE........................................................................................... 41
	HYDRAULIC PIPING DRAWING.............................................................................................. 42
	HYDRAULIC CIRCUIT DIAGRAM............................................................................................. 43
	HYDRAULIC TANK........................................................................................................ 44
	HYDRAULIC PUMP........................................................................................................ 45
		BASIC PUMP........................................................................................................ 45
			Outline....................................................................................................... 45
			Function...................................................................................................... 48
			Structure..................................................................................................... 48
			Operation..................................................................................................... 49
		LS and PC valve................................................................................................... 51
			Function...................................................................................................... 52
			PC valve...................................................................................................... 52
	IN-LINE OIL FILTER.................................................................................................... 63
		Outline........................................................................................................... 63
	CONTROL VALVE......................................................................................................... 64
		Outline........................................................................................................... 64
		6-spool valve (standard).......................................................................................... 65
			Main structure................................................................................................ 66
	SAFETY-SUCTION VALVE FOR SERVICE VALVE................................................................................ 70
	SELF-REDUCING PRESSURE VALVE.......................................................................................... 71
		Function.......................................................................................................... 73
		Operation......................................................................................................... 73
	CLSS.................................................................................................................. 76
		Outline of CLSS................................................................................................... 76
			Features...................................................................................................... 76
			Structure..................................................................................................... 76
			Basic principle............................................................................................... 77
		Operation for each function and valve............................................................................. 79
			Hydraulic circuit diagram for system.......................................................................... 79
			System diagram................................................................................................ 81
			Unload valve.................................................................................................. 82
			Introduction of LS pressure................................................................................... 83
			LS bypass valve............................................................................................... 84
			Pressure compensation valve................................................................................... 85
			Shuttle valve inside pressure compensation valve.............................................................. 88
			Boom regeneration circuit..................................................................................... 89
			Arm regeneration circuit...................................................................................... 91
			Pump merge-divider valve (junction valve)..................................................................... 93
			LS select valve............................................................................................... 95
			Spool stroke modulation....................................................................................... 96
			Timing valve..................................................................................................100
		Operation of CLSS system as a whole...............................................................................101
			When all work equipment is at neutral.........................................................................101
			One side actuated, other side neutral.........................................................................103
			Arm OUT, standard mode relief (cut-off control)...............................................................105
			Boom RAISE....................................................................................................107
			Swing operated independently..................................................................................109
			Travel operated independently.................................................................................111
			Compound operation............................................................................................113
	SWING MOTOR...........................................................................................................115
		BASIC MOTOR.......................................................................................................115
		Swing lock valve..................................................................................................117
			Operation.....................................................................................................117
		Reverse prevention valve (swing dampening)........................................................................118
			Operation diagram.............................................................................................118
			Explanation of effect.........................................................................................118
			Outline.......................................................................................................119
			Operation.....................................................................................................119
	CENTER SWIVEL JOINT...................................................................................................120
	TRAVEL MOTOR..........................................................................................................121
		Operation of parking brake........................................................................................123
		Operation of brake valve..........................................................................................124
	VALVE CONTROL.........................................................................................................127
	WORK EQUIPMENT - SWING PPC VALVE......................................................................................128
		Operation.........................................................................................................130
	TRAVEL PPC VALVE......................................................................................................132
		Operation.........................................................................................................134
	SERVICE PPC VALVE.....................................................................................................136
		Operation.........................................................................................................137
	ACCUMULATOR...........................................................................................................139
		Function..........................................................................................................139
		Operation.........................................................................................................139
	STRAIGHT-TRAVEL SYSTEM................................................................................................140
		Function..........................................................................................................140
	EPC SOLENOID VALVE....................................................................................................141
		Operation.........................................................................................................142
	BOOM LOCK VALVE.......................................................................................................143
		Operation.........................................................................................................144
	ADDITIONAL FILTER FOR BREAKER.........................................................................................146
	WORK EQUIPMENT........................................................................................................147
	AIR CONDITIONER.......................................................................................................148
	ELECTRICAL WIRING DIAGRAM.............................................................................................149
	ELECTRICAL CIRCUIT DIAGRAM............................................................................................151
		ELECTRICAL CIRCUIT DIAGRAM FOR AIR CONDITIONER....................................................................153
	ELECTRIC CONTROL SYSTEM...............................................................................................154
		TOTAL SYSTEM DIAGRAM..............................................................................................154
		PUMP CONTROL FUNCTION.............................................................................................155
			Function......................................................................................................155
			Pump controller...............................................................................................156
		SWING LOCK, PPC LOCK FUNCTION.....................................................................................157
			Operation.....................................................................................................158
	MACHINE MONITOR SYSTEM................................................................................................159
		FUNCTION..........................................................................................................159
		Monitor panel.....................................................................................................160
			Outline.......................................................................................................160
			Input/Output signals..........................................................................................160
	SENSORS...............................................................................................................162
		Engine oil pressure sensor........................................................................................162
		Coolant temperature sensor........................................................................................162
		Fuel level sensor.................................................................................................163
20 TESTING, ADJUSTING AND TROUBLESHOOTING.................................................................................164
	TESTING AND ADJUSTING.................................................................................................167
		STANDARD VALUE TABLE..............................................................................................168
			For engine....................................................................................................168
			For chassis...................................................................................................169
			For electrical system.........................................................................................177
		TOOLS FOR TESTING, ADJUSTING AND TROUBLESHOOTING..................................................................180
		MEASURING ENGINE SPEED............................................................................................181
		MEASURING EXHAUST GAS COLOR.......................................................................................182
		ADJUSTING VALVE CLEARANCE.........................................................................................183
		MEASURING COMPRESSION PRESSURE....................................................................................184
		MEASURING BLOW-BY PRESSURE........................................................................................184
		TESTING AND ADJUSTING FUEL INJECTION TIMING.......................................................................185
		MEASURE ENGINE OIL PRESSURE.......................................................................................186
		TESTING AND ADJUSTING FAN BELT TENSION............................................................................187
		TESTING AND ADJUSTING BELT TENSION FOR AIR CONDITIONER COMPRESSOR.................................................187
		ADJUSTING SPEED SENSOR............................................................................................188
		ADJUSTING FUEL CONTROL LEVER......................................................................................189
		TESTING AND ADJUSTING HYDRAULIC PRESSURE IN WORK EQUIPMENT, SWING, AND TRAVEL CIRCUIT.............................191
		TESTING AND ADJUSTING PC VALVE OUTPUT PRESSURE (SERVO PISTON INPUT PRESSURE)......................................194
		TESTING AND ADJUSTING LS VALVE OUTPUT PRESSURE (SERVO PISTON INPUT PRESSURE AND LS DIFFERENTIAL PRESSURE).........195
		TESTING AND ADJUSTING CONTROL CIRCUIT OIL PRESSURE................................................................198
		TESTING SOLENOID VALVE OUTPUT PRESSURE............................................................................199
		MEASURING PPC VALVE OUTPUT PRESSURE...............................................................................201
			Plug location diagram.........................................................................................202
		ADJUSTING WORK EQUIPMENT - SWING PPC VALVE........................................................................203
		TESTING TRAVEL DEVIATION..........................................................................................204
		TESTING LOCATIONS CAUSING HYDRAULIC DRIFT OF WORK EQUIPMENT.......................................................205
		MEASURING OIL LEAKAGE.............................................................................................207
		RELEASING REMAINING PRESSURE IN HYDRAULIC CIRCUIT.................................................................209
		TESTING CLEARANCE OF SWING CIRCLE BEARING.........................................................................209
		TESTING AND ADJUSTING TRACK SHOE TENSION..........................................................................210
		BLEEDING AIR......................................................................................................211
	TROUBLESHOOTING.......................................................................................................213
		POINTS TO REMEMBER WHEN TROUBLESHOOTING...........................................................................214
		SEQUENCE OF EVENTS IN TROUBLESHOOTING.............................................................................215
		POINTS TO REMEMBER WHEN CARRYING OUT MAINTENANCE..................................................................216
			Points to remember when handling electric equipment...........................................................216
			Points to remember when troubleshooting electric circuits.....................................................221
			Points to remember when handling hydraulic equipment..........................................................222
		CHECKS BEFORE TROUBLESHOOTING.....................................................................................224
		CONNECTOR TYPES AND MOUNTING LOCATIONS............................................................................225
		CONNECTION TABLE FOR CONNECTOR PIN NUMBERS........................................................................230
		METHOD OF USING TROUBLESHOOTING CHARTS............................................................................240
		TROUBLESHOOTING OF ENGINE SYSTEM (S MODE).........................................................................242
			METHOD OF USING TROUBLESHOOTING CHARTS........................................................................242
			S-1 Starting performance is poor (starting always takes time).................................................246
			S-2 Engine does not start.....................................................................................248
			S-3 Engine does not pick up smoothly (follow-up is poor)......................................................251
			S-4 Engine stops during operations............................................................................252
			S-5 Engine does not rotate smoothly (hunting).................................................................253
			S-6 Engine lacks output (no power)............................................................................254
			S-7 Exhaust smoke is black (incomplete combustion)............................................................255
			S-8 Oil consumption is excessive (or exhaust smoke is blue)...................................................256
			S-9 Oil becomes contaminated quickly..........................................................................257
			S-10 Fuel consumption is excessive............................................................................258
			S-11 Oil is in coolant, or coolant spurts back, or coolant level goes down....................................259
			S-12 Oil pressure caution lamp lights up (drop in oil pressure)...............................................260
			S-13 Oil level rises (coolant, fuel in oil)...................................................................261
			S-14 Coolant temperature becomes too high (overheating).......................................................262
			S-15 Abnormal noise is made...................................................................................263
			S-16 Vibration is excessive...................................................................................264
		TROUBLESHOOTING OF ELECTRICAL SYSTEM (E MODE).....................................................................265
			JUDGEMENT TABLE FOR ELECTRICAL, HYDRAULIC , AND MECHANICAL SYSTEMS............................................265
			ELECTRICAL CIRCUIT DIAGRAM FOR E MODE SYSTEM..................................................................267
			E-1 Abnormality in PC-EPC control system......................................................................268
			E-3 Abnormality in swing holding brake solenoid system........................................................271
			E-4 Abnormality in PPC oil pressure lock solenoid system......................................................273
			E-5 Abnormality in engine starting system (engine does not start).............................................275
		TROUBLESHOOTING OF HYDRAULIC AND MECHANICAL SYSTEM (H MODE).......................................................278
			TABLE OF FAILURE MODES AND CAUSES.............................................................................278
			H-1 Speeds of all work equipment, travel, swing are slow or lacks power.......................................282
			H-2 There is excessive drop in engine speed, or engine stalls.................................................284
			H-3 No work equipment, travel, swing move.....................................................................284
			H-4 Abnormal noise generated (around pump)....................................................................285
			H-5 Fine control ability is poor or response is poor..........................................................285
			H-6 Boom is slow or lacks power...............................................................................286
			H-7 Arm is slow or lacks power................................................................................288
			H-8 Bucket is slow or lacks power.............................................................................290
			H-9 Work equipment (boom, arm, bucket) does not move (but travel and swing are normal)........................290
			H-10 Excessive hydraulic drift (boom, arm, bucket)............................................................291
			H-11 Excessive time lag (engine at low idle)..................................................................292
			H-12 Other equipment moves when single circuit is relieved....................................................292
			H-13 In compound operations, work equipment with larger load is slow..........................................292
			H-14 In swing + boom RAISE, boom RAISE is slow................................................................293
			H-15 In swing + travel, travel speed drops excessively........................................................293
			H-16 Travel deviation (deviation is excessive in normal travel and when starting).............................294
			H-17 Travel speed is slow.....................................................................................295
			H-18 Steering does not turn easily or lacks power.............................................................295
			H-19 Travel does not move (one side only).....................................................................296
			H-21 Does not swing...........................................................................................297
			H-22 Swing acceleration is poor or swing speed is slow........................................................298
			H-23 Excessive overrun when stopping swing....................................................................300
			H-24 Excessive shock when stopping swing (one direction only).................................................300
			H-25 Excessive abnormal noise when stopping swing.............................................................301
			H-26 Excessive hydraulic drift of swing.......................................................................301
		TROUBLESHOOTING OF MACHINE MONITOR SYSTEM (M MODE)................................................................303
			Monitor system electrical circuit diagram.....................................................................303
			M-1 When the starting switch is turned ON, no display is given (lamps do not light up for 3 seconds)..........304
			M-2 When starting switch is turned ON, lamps light up for 3 seconds, but then do not go out...................304
			M-3 When starting switch is turned ON, some lamps do not light up for 3 seconds...............................305
			M-4 When power is turned on (before engine is started), charge caution lamp does not light up.................306
			M-5 When power is turned on (before engine is started), engine oil pressure caution lamp does not light up....307
			M-6 During preheating, preheating pilot does not light up.....................................................307
			M-7 When switch is operated, swing lock lamp does not light up................................................308
			M-8 Engine oil pressure caution lamp lights up when engine is running (engine oil pressure is normal).........309
			M-9 Charge caution lamp lights up when engine is running......................................................310
			M-10 Abnormality in coolant temperature gauge.................................................................310
			M-11 Abnormality in fuel gauge................................................................................312
			M-12 Defective operation of alarm buzzer......................................................................314
			M-13 Engine is running, but service meter does not move.......................................................315
			M-14 Night lighting does not light up.........................................................................316
			M-15 Wiper does not move, or does not stop moving.............................................................317
			M-16 Heater does not work.....................................................................................319
30 DISASSEMBLY AND ASSEMBLY...............................................................................................321
	METHOD OF USING MANUAL................................................................................................325
		When removing or installing unit assemblies.......................................................................325
		General precautions...............................................................................................325
		Listing of special tools..........................................................................................325
	PRECAUTIONS WHEN CARRYING OUT OPERATION...............................................................................326
		Precautions when carrying out removal work........................................................................326
		Precautions when carrying out installation work...................................................................327
		Precautions when completing the operations........................................................................327
	SPECIAL TOOL LIST.....................................................................................................328
	SKETCHES OF SPECIAL TOOLS.............................................................................................332
	STARTING MOTOR........................................................................................................333
		Removal...........................................................................................................333
		Installation......................................................................................................333
	ALTERNATOR............................................................................................................334
		Removal...........................................................................................................334
		Installation......................................................................................................334
	AIR CONDITIONER COMPRESSOR............................................................................................335
		Removal...........................................................................................................335
		Installation......................................................................................................335
	CONDENSER.............................................................................................................336
		Removal...........................................................................................................336
		Installation......................................................................................................336
	FUEL INJECTION PUMP...................................................................................................337
		Removal...........................................................................................................337
		Installation......................................................................................................339
	WATER PUMP............................................................................................................340
		Removal...........................................................................................................340
		Installation......................................................................................................341
	NOZZLE HOLDER.........................................................................................................342
		Removal...........................................................................................................342
		Installation......................................................................................................342
	TURBOCHARGER..........................................................................................................343
		Removal...........................................................................................................343
		Installation......................................................................................................343
	THERMOSTAT............................................................................................................344
		Removal...........................................................................................................344
		Installation......................................................................................................345
	CYLINDER HEAD ASSEMBLY................................................................................................346
		Removal...........................................................................................................346
		Installation......................................................................................................349
	RADIATOR, HYDRAULIC OIL COOLER ASSEMBLY...............................................................................350
		Removal...........................................................................................................350
		Installation......................................................................................................352
	ENGINE, MAIN PUMP.....................................................................................................353
		Removal...........................................................................................................353
		Installation......................................................................................................356
	DAMPER................................................................................................................357
		Removal...........................................................................................................357
		Installation......................................................................................................357
	FUEL TANK.............................................................................................................358
		Removal...........................................................................................................358
		Installation......................................................................................................358
	CENTER SWIVEL JOINT...................................................................................................359
		Removal...........................................................................................................359
		Installation......................................................................................................360
		Disassembly.......................................................................................................361
		Assembly..........................................................................................................361
	FINAL DRIVE...........................................................................................................362
		Removal...........................................................................................................362
		Installation......................................................................................................362
		Disassembly.......................................................................................................363
		Assembly..........................................................................................................366
	SPROCKET..............................................................................................................371
		Removal...........................................................................................................371
		Installation......................................................................................................371
	SWING MOTOR...........................................................................................................372
		Removal...........................................................................................................372
		Installation......................................................................................................372
	SWING MACHINERY.......................................................................................................373
		Removal...........................................................................................................373
		Installation......................................................................................................373
		Disassembly.......................................................................................................374
		Assembly..........................................................................................................377
	REVOLVING FRAME.......................................................................................................381
		Removal...........................................................................................................381
		Installation......................................................................................................382
	SWING CIRCLE..........................................................................................................383
		Removal...........................................................................................................383
		Installation......................................................................................................383
	IDLER - RECOIL SPRING.................................................................................................384
		Removal...........................................................................................................384
		Installation......................................................................................................384
	RECOIL SPRING.........................................................................................................385
		Disassembly.......................................................................................................385
		Assembly..........................................................................................................386
	IDLER.................................................................................................................387
		Disassembly.......................................................................................................387
		Assembly..........................................................................................................388
	TRACK ROLLER..........................................................................................................390
		Removal...........................................................................................................390
		Installation......................................................................................................390
		Disassembly.......................................................................................................391
		Assembly..........................................................................................................392
	CARRIER ROLLER........................................................................................................394
		Removal...........................................................................................................394
		Installation......................................................................................................394
		Disassembly.......................................................................................................395
		Assembly..........................................................................................................396
	TRACK SHOE............................................................................................................398
		Removal...........................................................................................................398
		Installation......................................................................................................398
	HYDRAULIC TANK........................................................................................................399
		Removal...........................................................................................................399
		Installation......................................................................................................400
	MAIN PUMP.............................................................................................................401
		Removal...........................................................................................................401
		Installation......................................................................................................403
	MAIN PUMP INPUT SHAFT OIL SEAL........................................................................................404
		Removal...........................................................................................................404
		Installation......................................................................................................404
	CONTROL VALVE.........................................................................................................405
		Removal...........................................................................................................405
		Installation......................................................................................................406
		Disassembly.......................................................................................................407
		Assembly..........................................................................................................411
	PUMP MERGE-DIVIDER VALVE..............................................................................................413
		Disassembly.......................................................................................................413
		Assembly..........................................................................................................413
	MAIN RELIEF VALVE.....................................................................................................414
		Disassembly.......................................................................................................414
		Assembly..........................................................................................................414
	PC VALVE..............................................................................................................415
		Removal...........................................................................................................415
		Installation......................................................................................................415
	LS VALVE..............................................................................................................416
		Removal...........................................................................................................416
		Installation......................................................................................................416
	PC-EPC VALVE..........................................................................................................417
		Removal...........................................................................................................417
		Installation......................................................................................................417
	SOLENOID VALVE........................................................................................................418
		Removal...........................................................................................................418
		Installation......................................................................................................418
	WORK EQUIPMENT - SWING PPC VALVE......................................................................................419
		Removal...........................................................................................................419
		Installation......................................................................................................419
		Disassembly.......................................................................................................420
		Assembly..........................................................................................................421
	TRAVEL PPC VALVE......................................................................................................422
		Removal...........................................................................................................422
		Installation......................................................................................................422
		Disassembly.......................................................................................................423
		Installation......................................................................................................423
	BOOM LOCK VALVE.......................................................................................................424
		Removal...........................................................................................................424
		Installation......................................................................................................424
	BOOM CYLINDER.........................................................................................................425
		Removal...........................................................................................................425
		Installation......................................................................................................426
	ARM CYLINDER..........................................................................................................427
		Removal...........................................................................................................427
		Installation......................................................................................................428
	BUCKET CYLINDER.......................................................................................................429
		Removal...........................................................................................................429
		Installation......................................................................................................430
	HYDRAULIC CYLINDER....................................................................................................431
		Disassembly.......................................................................................................431
		Assembly..........................................................................................................433
	WORK EQUIPMENT........................................................................................................437
		Removal...........................................................................................................437
		Installation......................................................................................................438
	BUCKET................................................................................................................439
		Removal...........................................................................................................439
		Installation......................................................................................................440
	ARM...................................................................................................................441
		Removal...........................................................................................................441
		Installation......................................................................................................442
	BUCKET - ARM..........................................................................................................443
		Removal...........................................................................................................443
		Installation......................................................................................................444
	BOOM..................................................................................................................445
		Removal...........................................................................................................445
		Installation......................................................................................................446
	OPERATOR’S CAB........................................................................................................447
		Removal...........................................................................................................447
		Installation......................................................................................................447
	COUNTERWEIGHT.........................................................................................................448
		Removal...........................................................................................................448
		Installation......................................................................................................448
	MONITOR...............................................................................................................449
		Removal...........................................................................................................449
		Installation......................................................................................................449
40 MAINTENANCE STANDARD...................................................................................................450
	SWING MACHINERY.......................................................................................................451
	SWING CIRCLE..........................................................................................................453
	FINAL DRIVE...........................................................................................................454
	TRACK FRAME - RECOIL SPRING...........................................................................................456
	IDLER.................................................................................................................457
	CARRIER ROLLER........................................................................................................459
	TRACK ROLLER..........................................................................................................460
	TRACK SHOE............................................................................................................461
	CONTROL VALVE.........................................................................................................463
	SAFETY-SUCTION VALVE FOR SERVICE VALVE................................................................................469
	SELF-REDUCING PRESSURE VALVE..........................................................................................470
	SWING MOTOR...........................................................................................................471
	TRAVEL MOTOR..........................................................................................................472
	WORK EQUIPMENT - SWING PPC VALVE......................................................................................473
	TRAVEL PPC VALVE......................................................................................................474
	SERVICE PPC VALVE.....................................................................................................475
	CENTER SWIVEL JOINT...................................................................................................476
	BOOM LOCK VALVE.......................................................................................................477
	HYDRAULIC CYLINDER....................................................................................................478
		Boom cylinder.....................................................................................................478
		Arm cylinder......................................................................................................478
		Bucket cylinder...................................................................................................478
	WORK EQUIPMENT........................................................................................................480
	DIMENSION OF WORK EQUIPMENT...........................................................................................482
		Arm portion.......................................................................................................482
		Bucket portion....................................................................................................484

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