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KOMATSU BR550JG-1 SERVICE REPAIR MANUAL (SN:1001 & UP) KOMATSU BR550JG 1 – PDF DOWNLOAD

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  • KOMATSU BR550JG-1 SERVICE REPAIR MANUAL
  • SERIAL NUMBER:1001 & UP
  • PUBLICATION NUMBER:SEBM022504
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Description

KOMATSU BR550JG-1 SERVICE REPAIR MANUAL (SN:1001 & UP) KOMATSU BR550JG 1

KOMATSU BR550JG-1 SERVICE REPAIR MANUAL (SN:1001 & UP) KOMATSU BR550JG 1 – PDF DOWNLOAD:

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DESCRIPTION:

KOMATSU BR550JG-1 SERVICE REPAIR MANUAL (SN:1001 & UP) KOMATSU BR550JG 1

  • 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 chapters; these chapters are further divided into the each main group of components.
  • 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. In addition, this section may contain hydraulic circuit diagrams, electric circuit diagrams, and maintenance standards.
  • 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” with “Causes” are also included in this section.
  • DISASSEMBLY AND ASSEMBLY
    This section explains the procedures for removing, installing, disassembling and assembling each component, as well as precautions for them.
  • MAINTENANCE STANDARD
    This section gives the judgment standards for inspection of disassembled parts. The contents of this section may be described in STRUCTURE AND FUNCTION.
  • OTHERS
    This section mainly gives hydraulic circuit diagrams and electric circuit diagrams. In addition, this section may give the specifications of attachments and options together.

TABLE OF CONTENTS:

KOMATSU BR550JG-1 SERVICE REPAIR MANUAL (SN:1001 & UP) KOMATSU BR550JG 1

COVER.............................................................................................................................................................................................  1
CONTENTS..........................................................................................................................................................................................  2
01 GENERAL........................................................................................................................................................................................ 27
	SPECIFICATION DRAWINGS........................................................................................................................................................................ 28
	SPECIFICATIONS................................................................................................................................................................................ 29
	WEIGHT TABLE.................................................................................................................................................................................. 32
	TABLE OF FUEL, COOLANT, AND LUBRICANTS........................................................................................................................................................ 33
10 STRUCTURE, FUNCTION AND MAINTENANCE STANDARD................................................................................................................................................... 35
	ENGINE MOUNT AND DAMPER....................................................................................................................................................................... 36
	RADIATOR, OIL, AND AFTERCOOLER................................................................................................................................................................ 38
	POWER TRAIN................................................................................................................................................................................... 39
	FINAL DRIVE................................................................................................................................................................................... 41
	TRACK FRAME AND RECOIL SPRING................................................................................................................................................................. 43
	IDLER......................................................................................................................................................................................... 44
	CARRIER ROLLER................................................................................................................................................................................ 45
	TRACK ROLLER.................................................................................................................................................................................. 46
	TRACK SHOE.................................................................................................................................................................................... 47
	HYDRAULIC PIPING DIAGRAM...................................................................................................................................................................... 50
	HYDRAULIC TANK AND FILTER..................................................................................................................................................................... 51
	HYDRAULIC PUMP................................................................................................................................................................................ 52
	MAIN PUMP..................................................................................................................................................................................... 53
	TCV, LC VALVE................................................................................................................................................................................. 58
		FUNCTION.................................................................................................................................................................................. 60
		OPERATION-LS VALVE........................................................................................................................................................................ 61
		OPERATION-TVC VALVE....................................................................................................................................................................... 65
	CONTROL VALVE................................................................................................................................................................................. 72
	SELF-REDUCING PRESSURE VALVE.................................................................................................................................................................. 78
	CLASS......................................................................................................................................................................................... 83
		OUTLINE OF CLASS.......................................................................................................................................................................... 83
		BASIC PRINCIPLE........................................................................................................................................................................... 84
		HYDRAULIC CIRCUIT DIAGRAM................................................................................................................................................................. 86
		WHEN UPLOAD VALVE IS ACTUATED............................................................................................................................................................. 89
		INTRODUCTION OF LS PRESSURE............................................................................................................................................................... 91
		LS BYPASS VALVE........................................................................................................................................................................... 92
		PRESSURE COMPENSATION VALVE............................................................................................................................................................... 93
		SHUTTLE VALVE INSIDE PRESSURE COMPENSATION VALVE.......................................................................................................................................... 95
		MERGE FLOW DIVIDER VALVE.................................................................................................................................................................. 98
	CRUSHER MOTOR.................................................................................................................................................................................100
	GRIZZLY FEEDER MOTOR..........................................................................................................................................................................102
	TRAVEL MOTOR (FIXED SWASH PLATE)..............................................................................................................................................................103
		OPERATION OF PARKING BRAKE................................................................................................................................................................105
		COUNTERBALANCE AND CHECK VALVE............................................................................................................................................................106
		SAFETY VALVE..............................................................................................................................................................................107
	TRAVEL PPC VALVE..............................................................................................................................................................................110
	TRAVEL JUNCTION VALVE.........................................................................................................................................................................114
	4-SPOOL SOLENOLD VALVE........................................................................................................................................................................117
	8-SPOOL EPC VALVE.............................................................................................................................................................................119
	EPC VALVE.....................................................................................................................................................................................120
	LS-EPC VALVE..................................................................................................................................................................................123
	ELECTROMAGNETIC SELECTOR VALVE................................................................................................................................................................126
	ENGINE CONTROL SYSTEM.........................................................................................................................................................................128
		OPERATION OF SYSTEM ......................................................................................................................................................................129
		COMPONENTS OF SYSTEM......................................................................................................................................................................130
	ENGINE THROTTLE - PUMP CONTROLLER.............................................................................................................................................................132
		INPUT AND OUTPUT SIGNALS..................................................................................................................................................................133
	LX CONTROLLER.................................................................................................................................................................................134
		INPUT AND OUTPUT SIGNALS..................................................................................................................................................................135
		TROUBLESHOOTING DISPLAY OF LX CONTROLLER..................................................................................................................................................137
		ERROR CODES...............................................................................................................................................................................139
	MACHINE MONITOR SYSTEM........................................................................................................................................................................141
		MACHINE MONITOR...........................................................................................................................................................................142
		MONITOR DISPLAY...........................................................................................................................................................................143
		CONTENT OF DISPLAY........................................................................................................................................................................144
		OIL MAINTENANCE FUNCTION..................................................................................................................................................................145
		SENSORS...................................................................................................................................................................................147
	ELECTRONIC CONTROL SYSTEM.....................................................................................................................................................................150
		PUMP PRESSURE SENSOR......................................................................................................................................................................150
		EMERGENCY PUMP DRIVE RESISTOR.............................................................................................................................................................151
		ENGINE SPEED SENSOR.......................................................................................................................................................................152
	GRIZZLY FEEDER SEMI-AUTO SYSTEM...............................................................................................................................................................153
		SYSTEM DRAWING............................................................................................................................................................................154
	ABNORMAL LOAD STOP SYSTEM.....................................................................................................................................................................155
	CRUSHER LOAD SETTING DIAL.....................................................................................................................................................................156
	PRIMARY CONVEYOR MACHINERY....................................................................................................................................................................158
		PRIMARY CONVEYOR MOTOR....................................................................................................................................................................159
		PRIMARY BELT CONVEYOR.....................................................................................................................................................................160
		GRIZZLY FEEDER............................................................................................................................................................................161
	CRUSHER.......................................................................................................................................................................................164
		PRINCIPLE OF CRUSHING.....................................................................................................................................................................166
		METHOD OF USING JAW CRUSHER...............................................................................................................................................................167
20 TESTING AND ADJUSTING..........................................................................................................................................................................170
	STANDARD VALUE TABLE FOR ENGINE...............................................................................................................................................................171
	STANDARD VALUE TABLE FOR CHASSIS..............................................................................................................................................................172
	STANDARD VALUE TABLE FOR ELECTRICAL PARTS.....................................................................................................................................................177
	TESTING AND ADJUSTING.........................................................................................................................................................................181
		SERVICE TOOLS TABLE.......................................................................................................................................................................182
		MEASURING ENGINE SPEED....................................................................................................................................................................183
		MEASURING EXHAUST COLOR...................................................................................................................................................................184
		ADJUSTING VALVE CLEARANCE.................................................................................................................................................................185
		MEASURING COMPRESSION PRESSURE............................................................................................................................................................186
		MEASURING BLOW-BY PRESSURE................................................................................................................................................................187
		FUEL INJECTION TIMING.....................................................................................................................................................................188
		MEASURING ENGINE OIL PRESSURE.............................................................................................................................................................190
		TESTING AND ADJUSTING FAN BELT TENSION....................................................................................................................................................191
		ADJUSTING ENGINE SPEED SENSOR.............................................................................................................................................................192
		MEASURING AIR SUPPLY PRESSURE (BOOST PRESSURE)............................................................................................................................................193
		GOVERNOR MOTOR LEVER STROKE...............................................................................................................................................................194
		WORK EQUIPMENT AND TRAVEL CIRCUIT.........................................................................................................................................................195
		TVC VALVE OUTPUT PRESSURE.................................................................................................................................................................197
		LS VALVE OUTPUT AND DIFFERENTIAL PRESSURE.................................................................................................................................................199
		CONTROL CIRCUIT OIL PRESSURE..............................................................................................................................................................203
		SOLENOID VALVE OUTPUT PRESSURE............................................................................................................................................................204
		TRAVEL DEVIATION..........................................................................................................................................................................205
		MEASURING OIL LEAKAGE.....................................................................................................................................................................206
		TESTING WEAR OF SPROCKET..................................................................................................................................................................207
		TRACK SHOE TENSION........................................................................................................................................................................208
		BLEEDING AIR..............................................................................................................................................................................209
		JAW CRUSHER...............................................................................................................................................................................212
		TENSION OF CRUSHER DRIVE BELT.............................................................................................................................................................218
		PRIMARY BELT CONVEYOR.....................................................................................................................................................................219
		REFERENCE (RADIO CONTROLLER SUPPORT POINT)................................................................................................................................................220
	TROUBLESHOOTING...............................................................................................................................................................................221
		POINTS TO REMEMBER WHEN TROUBLESHOOTING...................................................................................................................................................222
		SEQUENCE OF EVENTS IN TROUBLESHOOTING.....................................................................................................................................................224
		PRECAUTIONS WHEN CARRYING OUT MAINTENANCE.................................................................................................................................................225
		CHECKS BEFORE TROUBLESHOOTING.............................................................................................................................................................233
		CONNECTOR TYPES AND MOUNTING LOCATIONS....................................................................................................................................................234
		CONNECTION TABLE FOR CONNECTOR PIN NUMBERS................................................................................................................................................250
		EXPLANATION OF CONTROL MECHANISM FOR ELECTRICAL SYSTEM....................................................................................................................................267
		DISPLAY METHOD AND SPECIAL FUNCTION OF MONITORING PANEL...................................................................................................................................270
		METHOD OF USING JUDGEMENT TABLE...........................................................................................................................................................278
		METHOD OF USING TROUBLESHOOTING CHARTS....................................................................................................................................................280
		DETAILS OF TROUBLESHOOTING AND TROUBLESHOOTING PROCEDURE..................................................................................................................................282
		SERVICE CODE TABLE........................................................................................................................................................................285
		TROUBLESHOOTING OF COMMUNICATION ABNORMALITY (N MODE).....................................................................................................................................286
			N-1 [E218] COMMUNICATION ABNORMALITY..................................................................................................................................................287
		TROUBLESHOOTING OF ENGINE THROTTLE AND PUMP CONTROLLER (GOVERNOR CONTROL SYSTEM) (E MODE).................................................................................................289
			POINTS TO REMEMBER WHEN CARRYING OUT TROUBLESHOOTING OF ENGINE THROTTLE AND PUMP CONTROLLER SYSTEM....................................................................................290
			ACTIONS TAKEN BY CONTROLLER WHEN ABNORMALITY OCCURS AND PROBLEMS ON MACHINE...........................................................................................................291
			JUDGEMENT TABLE FOR ENGINE THROTTLE AND PUMP CONTROLLER (GOVERNOR CONTROL SYSTEM) AND ENGINE RELATED PARTS............................................................................295
			ELECTRICAL CIRCUIT DIAGRAM FOR E-MODE.................................................................................................................................................297
			E-1 ABNORMALITY IN ENGINE THROTTLE AND PUMP CONTROLLER POWER SUPPLY- (CONTROLLER LED IS OFF)..........................................................................................299
			E-2 [E308](ABNORMALITY IN INPUT VALUE FROM FUEL CONTROL DIAL) IS DISPLAYED............................................................................................................300
			E-3 [E317](DISCONNECTION IN MOTOR DRIVE SYSTEM) IS DISPLAYED..........................................................................................................................301
			E-4 [E318](SHORT CIRCUIT IN MOTOR DRIVE SYSTEM) IS DISPLAYED..........................................................................................................................302
			E-5 [E306](ABNORMALITY IN FEEDBACK POTENTIOMETER SYSTEM) IS DISPLAYED.................................................................................................................303
			E-6 [E315](SHORT CIRCUIT IN OUTPUT SYSTEM TO BATTERY RELAY) IS DISPLAYED..............................................................................................................304
			E-7 [E316](STEP-OUT IN MOTOR) IS DISPLAYED............................................................................................................................................305
			E-8 ENGINE DOES NOT START.............................................................................................................................................................306
			E-9 ENGINE SPEED IS IRREGULAR.........................................................................................................................................................309
			E-10 LACK OF OUTPUT-ENGINE HIGH IDLING, SPEED IS TOO LOW..............................................................................................................................313
			E-11 ENGINE DOES NOT STOP.............................................................................................................................................................315
			E-12 DEFECTIVE OPERATION OF BATTERY RELAY SYSTEM, ENGINE DOES NOT STOP................................................................................................................317
		TROUBLESHOOTING OF ENGINE THROTTLE AND PUMP CONTROLLER (PUMP CONTROLLER SYSTEM)(C MODE)...................................................................................................319
			POINTS TO REMEMBER WHEN TROUBLESHOOTING CONTROLLER SYSTEM.............................................................................................................................320
			ACTION TAKEN BY CONTROLLER WHEN ABNORMALITY OCCURS AND PROBLEMS ON MACHINE............................................................................................................321
			JUDGEMENT TABLE FOR ENGINE THROTTLE, PUMP CONTROLLER(PUMP CONTROL SYSTEM) AND HYDRAULIC RELATED PARTS.................................................................................329
			ELECTRICAL CIRCUIT DIAGRAM FOR C MODE.................................................................................................................................................331
			C-1 ABNORMALITY IN CONTROLLER POWER SOURCE SYSTEM (CONTROLLER LED IS OFF).............................................................................................................333
			C-2 [E232] (SHORT CIRCUIT IN FRONT PUMP TVC SOLENOID SYSTEM) IS DISPLAYED.............................................................................................................334
			C-3 [E233] (DISCONNECTION IN FRONT PUMP TVC SOLENOID SYSTEM) IS DISPLAYED.............................................................................................................336
			C-4 [E236] (SHORT CIRCUIT IN REAR PUMP TVC SOLENOID SYSTEM) IS DISPLAYED..............................................................................................................338
			C-5 [E237] (DISCONNECTION IN REAR PUMP TVC SOLENOID SYSTEM) IS DISPLAYED .............................................................................................................340
			C-6 [E207] (SHORT CIRCUIT IN DUMMY RESISTOR) IS DISPLAYED.............................................................................................................................342
			C-7 [E208] (DISCONNECTION IN DUMMY RESISTOR) IS DISPLAYED.............................................................................................................................343
			C-8 [E203] (SHORT CIRCUIT IN DUMMY RESISTOR) IS DISPLAYED.............................................................................................................................344
			C-9 [E213] (DISCONNECTION IN DUMMY RESISTOR) IS DISPLAYED.............................................................................................................................345
			C-10 [E204] (SHORT CIRCUIT IN DUMMY RESISTOR) IS DISPLAYED............................................................................................................................346
			C-11 [E214] (DISCONNECTION DUMMY RESISTOR) IS DISPLAYED...............................................................................................................................347
			C-12 [E206] (SHORT CIRCUIT IN DUMMY RESISTOR) IS DISPLAYED............................................................................................................................348
			C-13 [E216] (DISCONNECTION IN DUMMY RESISTOR) IS DISPLAYED............................................................................................................................349
			C-14 [E217] (SHORT CIRCUIT IN DUMMY RESISTOR) IS DISPLAYED............................................................................................................................350
			C-15 [E235] (DISCONNECTION IN DUMMY RESISTOR) IS DISPLAYED............................................................................................................................351
			C-16 [E217] (MODEL SELECTION INPUT ERROR) IS DISPLAYED................................................................................................................................352
			C-17 [E222] (SHORT CIRCUIT IN LS-EPC SOLENOID SYSTEM) IS DISPLAYED (DUMMY RESISTOR CIRCUIT)...........................................................................................353
			C-18 [E223] (DISCONNECTION IN LS-EPC SOLENOID SYSTEM) IS DISPLAYED (DUMMY RESISTOR CIRCUIT)...........................................................................................354
			C-19 [E224] (ABNORMALITY IN FRONT PUMP PRESSURE SENSOR SYSTEM) IS DISPLAYED...........................................................................................................355
			C-20 [E225] (ABNORMALITY IN REAR PUMP PRESSURE SENSOR SYSTEM) IS DISPLAYED............................................................................................................356
			C-21 [E226] (ABNORMALITY IN PRESSURE SENSOR POWER SUPPLY SYSTEM) IS DISPLAYED.........................................................................................................357
			C-22 [E227] (ABNORMALITY IN ENGINE SPEED SENSOR SYSTEM) IS DISPLAYED..................................................................................................................358
		TROUBLESHOOTING OF ENGINE THROTTLE AND PUMP CONTROLLER(INPUT SIGNAL SYSTEM) (F MODE)......................................................................................................359
			ELECTRICAL CIRCUIT DIAGRAM FOR F MODE.................................................................................................................................................360
			F-1 BIT PATTERN 20-[2] (TRAVEL OIL PRESSURE SWITCH) DOES NOT LIGHT UP.................................................................................................................362
			F-2 BIT PATTERN 22-[5] (KEROSENE MODE CONNECTION) DOES NOT LIGHT UP...................................................................................................................363
		TROUBLESHOOTING OF HYDRAULIC, MECHANICAL SYSTEM (H MODE)..................................................................................................................................364
			SOLENOID VALVE OPERATION..............................................................................................................................................................365
			TABLE OF FAILURE MODES AND CAUSES (1/2)...............................................................................................................................................366
			TABLE OF FAILURE MODES AND CAUSES (2/2)...............................................................................................................................................368
			H-1 SPEED OF ALL WORK EQUIPMENT, TRAVEL ARE SLOW OR LACK POWER........................................................................................................................370
			H-2 THERE IS EXCESSIVE DROP IN ENGINE SPEED, OR ENGINE STALLS.........................................................................................................................372
			H-3 NEITHER WORK EQUIPMENT, NOR TRAVEL MOVE...........................................................................................................................................372
			H-4 ABNORMAL NOISE GENERATED AROUND PUMP..............................................................................................................................................373
			H-5 FINE CONTROL ABILITY IS POOR OR RESPONSE IS POOR..................................................................................................................................373
			H-6 CONVEYOR DOES NOT OPERATE.........................................................................................................................................................374
			H-7 CONVEYOR SPEED IS LOW OR ITS POWER IS INSUFFICIENT................................................................................................................................375
			H-8 CRUSHER DOES NOT OPERATE..........................................................................................................................................................376
			H-9 CRUSHER SPEED IS LOW OR ITS POWER IS INSUFFICIENT.................................................................................................................................377
			H-10 FEEDER DOES NOT FEED WELL (VIBRATION FREQUENCY IS LOW)...........................................................................................................................378
			H-11 LOCK CYLINDER DOES NOT RETRACT OR DOES NOT EXTEND................................................................................................................................379
			H-12 MUCK DISCHARGE CONVEYOR SPEED IS LOW OR ITS POWER IS INSUFFICIENT................................................................................................................380
			H-13 MAGNETIC SEPARATOR BELT SPEED IS LOW.............................................................................................................................................381
			H-14 MUCK DISCHARGE CONVEYOR DOES NOT MOVE UP OR DOES NOT MOVE DOWN CONVEYOR DOES NOT MOVE UP OR DOES NOT MOVE DOWN OPENING/CLOSING HOPPER DOES NOT OPERATE...........................382
			H-15 MACHINE DOES NOT TRAVEL WHEN SWITCHES ON RADIO CONTROLLER ARE PRESSED(RIGHT REVERSE, RIGHT REVERSE, LEFT REVERSE, LEFT FORWARD)..................................................382
			H-16 TRAVEL SPEED IS LOW..............................................................................................................................................................383
			H-17 TRAVEL DEVIATION.................................................................................................................................................................385
			H-18 STEERING DOES NOT TURN EASILY OR LACKS POWER.....................................................................................................................................386
			H-19 TRAVEL DOES NOT MOVE ON ONE SIDE.................................................................................................................................................387
			H-20 MACHINE DOES NOT TRAVEL (WHEN TRAVEL LEVER IS OPERATED)..........................................................................................................................387
		TROUBLESHOOTING OF MONITOR SYSTEM (M MODE)................................................................................................................................................388
			ACTIONS TAKEN BY MONITOR PANEL WHEN ABNORMALITY OCCURS AND PROBLEMS ON MACHINE........................................................................................................389
			ELECTRICAL CIRCUIT DIAGRAM FOR M MODE.................................................................................................................................................391
			M-1 [E101] (ABNORMALITY IN ERROR DATA) IS DISPLAYED [E102] (ERROR IN CLOCK DATA) IS DISPLAYED.........................................................................................393
			M-2 [E103] (SHORT CIRCUIT IN BUZZER OUTPUT OR CONTACT OF 24 V WIRING HARNESS WITH BUZZER DRIVE) IS DISPLAYED..........................................................................394
			M-3 [E104] (AIR CLEANER CLOGGING DETECTED) IS DISPLAYED...............................................................................................................................395
			M-4 [E106] (DROP IN ENGINE OIL HI PRESSURE DETECTED) IS DISPLAYED.....................................................................................................................395
			M-5 [E108] (ENGINE WATER TEMPERATURE 105℃ DETECTED) IS DISPLAYED......................................................................................................................396
			M-6 WHEN STARTING SWITCH IS TURNED ON, NONE OF LAMPS ON MONITOR PANEL LIGHT UP FOR THREE SECONDS......................................................................................397
			M-7 WHEN STARTING SWITCH IS TURNED ON, MONITOR PANEL LAMPS ALL STAY LIGHTED UP AND DO NOT GO OUT......................................................................................399
			M-8 WHEN STARTING SWITCH IS TURNED ON, ITEMS LIGHTED UP ON MONITOR PANEL ARE DIFFERENT FROM ACTUAL MACHINE(MODEL).....................................................................399
			M-9 WHEN STARTING SWITCH IS TURNED ON, ENGINE STOPPED, BASIC CHECK ITEMS FLASH........................................................................................................400
			M-10 PREHEATING IS NOT BEING USED, BUT PREHEATING MONITOR LIGHTS UP...................................................................................................................403
			M-11 WHEN STARTING SWITCH IS TURNED ON AND ENGINE IS STARTED, BASIC CHECK ITEMS FLASH.................................................................................................404
			M-12 WHEN STARTING SWITCH IS TURNED ON, ENGINE STOPPED,CAUTION ITEMS AND EMERGENCY ITEMS FLASH(BATTERY AND ENGINE OIL PRESSURE LAMPS DO NOT LIGHT UP).................................406
			M-13 WHEN STARTING SWITCH IS TURNED ON AND ENGINE IS STARTED, CAUTION ITEMS,EMERGENCY ITEMS FLASH(WHEN THERE IS NO ABNORMALITY IN ENGINE OR ITEMS TO CHECK BEFORE TROUBLESHOOTING)....408
			M-14 WHEN STARTING SWITCH IS TURNED ON,ENGINE STOPPED, BUZZER DOES NOT SOUND FOR ONE SECOND CAUTION ITEM FLASHES BUT BUZZER DOES NOT SOUND ...........................................411
			M-15 NO ABNORMALITY IS DISPLAYED ON MONITOR BUT BUZZER SOUNDS.........................................................................................................................411
			M-16 NIGHT LIGHTING ON MONITOR PANEL DOES NOT LIGHT UP(LIQUID CRYSTAL DISPLAY IS NORMAL)..............................................................................................412
			M-17 COOLANT TEMPERATURE GAUGE DOES NOT RISE..........................................................................................................................................413
			M-18 COOLANT TEMPERATURE GAUGE DOES NOT GIVE ANY DISPLAY(NONE OF GAUGE LAMPS LIGHT UP DURING OPERATION)...............................................................................414
			M-19 FUEL LEVEL GAUGE ALWAYS DISPLAYS FULL............................................................................................................................................415
			M-20 FUEL LEVEL GAUGE DOES NOT GIVE DISPLAY...........................................................................................................................................416
			M-21 WHEN MODE SELECTOR SWITCH IS TURNED ON(WORK,MAINTENANCE),TRAVEL LOCK MONITOR DOES NOT LIGHT UP...................................................................................417
			M-22 SERVICE METER DOES NOT ADVANCE WHILE ENGINE IS RUNNING...........................................................................................................................419
			M-23 WHEN START SWITCH IS AT OFF AND TIME SWITCH IS PRESSED,TIME AND SERVICE METER ARE NOT DISPLAYED..................................................................................419
			M-24 FAULTY FUEL LEVEL SENSOR SYSTEM..................................................................................................................................................420
			M-25 FAULTY COOLANT TEMPERATURE SENSOR SYSTEM.........................................................................................................................................421
			M-26 FAULTY ENGINE OIL LEVEL SENSOR SYSTEM............................................................................................................................................422
			M-27 FAULTY COOLANT LEVEL SENSOR SYSTEM...............................................................................................................................................423
			M-28 FAULTY HYDRAULIC OIL LEVEL SENSOR SYSTEM.........................................................................................................................................424
		TROUBLESHOOTING OF WORK EQUIPMENT CONTROLLER SYSTEM (W MODE)..............................................................................................................................425
			PRECAUTIONS FOR TROUBLESHOOTING WORK EQUIPMENT CONTROLLER SYSTEM......................................................................................................................427
			ACTION TAKEN BY CONTROLLER WHEN ABNORMALITY OCCURS AND PROBLEMS ON MACHINE............................................................................................................429
			JUDGEMENT TABLE OF TROUBLES CONCERNED TO WORK EQUIPMENT CONTROL SYSTEM AND HYDRAULIC EQUIPMENT(1/2)...................................................................................443
			JUDGEMENT TABLE OF TROUBLES CONCERNED TO WORK EQUIPMENT CONTROL SYSTEM AND HYDRAULIC EQUIPMENT(2/2)...................................................................................445
			ELECTRICAL CIRCUIT DIAGRAM FOR W MODE.................................................................................................................................................447
			HOW TO READ YES/NO TROUBLESHOOTING....................................................................................................................................................451
			W-1 ABNORMALITY IN CONTROLLER POWER SUPPLY SYSTEM(CONTROLLER LED IS OFF)..............................................................................................................452
			W-2 [E-10] DISCONNECTION IN EMERGENCY STOP SWITCH SYSTEM..............................................................................................................................453
			W-3 [E-11] SHORT CIRCUIT IN CONVEYOR ON SWITCH SYSTEM.................................................................................................................................460
			W-4 [E-12] DISCONNECTION IN CONVEYOR OFF SWITCH SYSTEM................................................................................................................................461
			W-5 [E-13] SHORT CIRCUIT IN CRUSHER ON SWITCH SYSTEM..................................................................................................................................462
			W-6 [E-14] DISCONNECTION IN CRUSHER OFF SWITCH SYSTEM.................................................................................................................................464
			W-7 [E-15] SHORT CIRCUIT IN CRUSHER MANUAL FORWARD SWITCH SYSTEM......................................................................................................................466
			W-8 [E-16] SHORT CIRCUIT IN CRUSHER MANUAL REVERSE SWITCH SYSTEM......................................................................................................................467
			W-9 [E-17] SHORT CIRCUIT IN FEEDER ON SWITCH SYSTEM...................................................................................................................................468
			W-10 [E-18] DISCONNECTION IN FEEDER OFF SWITCH SYSTEM.................................................................................................................................470
			W-11 [E-19] SHORT CIRCUIT IN CRUSHER CLEARANCE EXTENSION SWITCH SYSTEM................................................................................................................472
			W-12 [E-1A] SHORT CIRCUIT IN CRUSHER CLEARANCE RETRACTION SWITCH SYSTEM...............................................................................................................473
			W-13 [E-1B] SHORT CIRCUIT IN MUCK CONVEYOR ON SWITCH SYSTEM...........................................................................................................................474
			W-14 [E-1C] SHORT CIRCUIT IN MUCK CONVEYOR OFF SWITCH SYSTEM..........................................................................................................................475
			W-15 [E-1D] SHORT CIRCUIT IN MAGNETIC SEPARATOR ON SWITCH SYSTEM......................................................................................................................476
			W-16 [E-1E] SHORT CIRCUIT IN MAGNETIC SEPARATOR OFF SWITCH SYSTEM.....................................................................................................................477
			W-17 [E-20] ABNORMALITY IN CRUSHER LOAD SETTING DIAL SYSTEM...........................................................................................................................478
			W-18 [E-21] ABNORMALITY IN CRUSHER SPEED DIAL SYSTEM..................................................................................................................................479
			W-19 [E-22] ABNORMALITY IN FEEDER SPEED DIAL SYSTEM...................................................................................................................................480
			W-20 [E-23] SHORT CIRCUIT IN TRAVEL R.H. REVERSE SWITCH SYSTEM........................................................................................................................481
			W-21 [E-24] SHORT CIRCUIT IN TRAVEL R.H. FORWARD SWITCH SYSTEM........................................................................................................................482
			W-22 [E-25] SHORT CIRCUIT IN TRAVEL L.H. REVERSE SWITCH SYSTEM........................................................................................................................483
			W-23 [E-26] SHORT CIRCUIT IN TRAVEL L.H. FORWARD SWITCH SYSTEM........................................................................................................................484
			W-24 [E-27] SHORT CIRCUIT IN MUCK CONVEYOR RAISE OR LOWER SWITCH SYSTEM...............................................................................................................485
			W-25 [E-28] SHORT CIRCUIT IN CONVEYOR RAISE OR LOWER SWITCH SYSTEM....................................................................................................................486
			W-26 [E-2C] ABNORMALITY IN CONVEYOR PRESSURE SENSOR SYSTEM............................................................................................................................487
			W-27 [E-2D] ABNORMALITY IN MUCK CONVEYOR PRESSURE SENSOR SYSTEM.......................................................................................................................489
			W-28 [E-2E] ABNORMALITY IN CRUSHER PRESSURE SYSTEM....................................................................................................................................491
			W-29 [E-2F] ABNORMALITY IN S-NET SYSTEM...............................................................................................................................................493
			W-30a [E-30] Abnormality in model selection...........................................................................................................................................494
			W-30b [E-31] Abnormality in crusher pressure sensor system (reverse rotation side)....................................................................................................495
			W-31 [E-50] DISCONNECTION IN ACCESSORY EPC VALVE SYSTEM...............................................................................................................................497
			W-32 [E-51] SHORT CIRCUIT IN ACCESSORY EPC VALVE SYSTEM...............................................................................................................................498
			W-33 [E-52] DISCONNECTION IN FEEDER EPC VALVE SYSTEM..................................................................................................................................499
			W-34 [E-53] SHORT CIRCUIT IN FEEDER EPC VALVE SYSTEM..................................................................................................................................500
			W-35 [E-54] DISCONNECTION IN CONVEYOR EPC VALVE SYSTEM................................................................................................................................501
			W-36 [E-55] SHORT CIRCUIT IN CONVEYOR.................................................................................................................................................502
			W-37 [E-56] DISCONNECTION IN TRAVEL LOCK EPC VALVE SYSTEM.............................................................................................................................503
			W-38 SHORT CIRCUIT IN TRAVEL LOCK EPC VALVE SYSTEM....................................................................................................................................504
			W-39 [E-58] DISCONNECTION IN CRUSHER FORWARD EPC VALVE SYSTEM.........................................................................................................................505
			W-40 [E-59] SHORT CIRCUIT IN CRUSHER FORWARD EPC VALVE SYSTEM.........................................................................................................................506
			W-41 [E-5A] DISCONNECTION IN CRUSHER REVERSE EPC VALVE SYSTEM.........................................................................................................................507
			W-42 [E-5B] SHORT CIRCUIT IN CRUSHER REVERSE EPC VALVE SYSTEM.........................................................................................................................508
			W-43 [E-5C] DISCONNECTION IN LOCK CYLINDER RETRACTION SOLENOID SYSTEM.................................................................................................................509
			W-44 [E-5D] SHORT CIRCUIT IN LOCK CYLINDER RETRACTION SOLENOID SYSTEM.................................................................................................................510
			W-45 [E-5E] DISCONNECTION IN LOCK CYLINDER EXTENSION SOLENOID SYSTEM..................................................................................................................511
			W-46 [E-5F] SHORT CIRCUIT IN LOCK CYLINDER EXTENSION SOLENOID SYSTEM..................................................................................................................512
			W-47 [E-60] DISCONNECTION IN MUCK DISCHARGE CONVEYOR SOLENOID SYSTEM..................................................................................................................513
			W-48 [E-61] SHORT CIRCUIT IN MUCK DISCHARGE CONVEYER SOLENOID SYSTEM..................................................................................................................514
			W-49 [E-62] DISCONNECTION IN MAGNETIC SEPARATOR SOLENOID SYSTEM.......................................................................................................................515
			W-50 [E-63] SHORT CIRCUIT IN MAGNETIC SEPARATOR SOLENOID SYSTEM.......................................................................................................................516
			W-51 [E-64] DISCONNECTION IN TRAVEL R.H. REVERSE SOLENOID SYSTEM......................................................................................................................517
			W-52 [E-65] SHORT CIRCUIT IN TRAVEL R.H. REVERSE SOLENOID SYSTEM......................................................................................................................518
			W-53 [E-66] DISCONNECTION IN TRAVEL L.H. REVERSE SOLENOID SYSTEM......................................................................................................................519
			W-54 [E-67] SHORT CIRCUIT IN TRAVEL L.H. REVERSE SOLENOID SYSTEM......................................................................................................................520
			W-55 [E-68] DISCONNECTION IN TRAVEL L.H. FORWARD SOLENOID SYSTEM......................................................................................................................521
			W-56 [E-69] SHORT CIRCUIT IN TRAVEL L.H. FORWARD SOLENOID SYSTEM......................................................................................................................522
			W-57 [E-6A] DISCONNECTION IN TRAVEL R.H. FORWARD SOLENOID SYSTEM......................................................................................................................523
			W-58 [E-6B] SHORT CIRCUIT IN TRAVEL R.H. FORWARD SOLENOID SYSTEM......................................................................................................................524
			W-59 [E-6D] SHORT CIRCUIT IN HORN RELAY COIL SYSTEM...................................................................................................................................525
			W-60 [E-6E] SHORT CIRCUIT IN ROTARY LAMP RELAY SYSTEM.................................................................................................................................526
			W-61 [E-70] DISCONNECTION IN LS EPC VALVE SYSTEM......................................................................................................................................527
			W-62 [E-71] SHORT CIRCUIT IN LS EPC VALVE SYSTEM......................................................................................................................................528
30 DISASSEMBLY AND ASSEMBLY.......................................................................................................................................................................529
	METHOD OF USING MANUAL........................................................................................................................................................................530
	PRECAUTIONS WHEN CARRYING OUT OPERATION.......................................................................................................................................................532
	SPECIAL TOOL LIST.............................................................................................................................................................................535
	FUEL INJECTION PUMP...........................................................................................................................................................................540
		REMOVAL...................................................................................................................................................................................540
		INSTALLATION..............................................................................................................................................................................541
	NOZZLE HOLDER.................................................................................................................................................................................542
		REMOVAL AND INSTALLATION..................................................................................................................................................................542
	TURBOCHARGER..................................................................................................................................................................................543
		REMOVAL AND INSTALLATION..................................................................................................................................................................543
	CYLINDER HEAD.................................................................................................................................................................................544
		REMOVAL...................................................................................................................................................................................544
		INSTALLATION..............................................................................................................................................................................546
	ENGINE FRONT SEAL.............................................................................................................................................................................549
		REMOVAL AND INSTALLATION..................................................................................................................................................................549
	ENGINE REAR SEAL..............................................................................................................................................................................550
		REMOVAL AND INSTALLATION..................................................................................................................................................................550
	ENGINE AFTERCOOLER............................................................................................................................................................................553
		REMOVAL AND INSTALLATION..................................................................................................................................................................553
	ENGINE, MAIN PUMP ............................................................................................................................................................................554
		REMOVAL...................................................................................................................................................................................554
		INSTALLATION..............................................................................................................................................................................556
	DAMPER .......................................................................................................................................................................................557
		REMOVAL AND INSTALLATION..................................................................................................................................................................557
	RADIATOR, HYDRAULIC COOLER....................................................................................................................................................................558
		REMOVAL...................................................................................................................................................................................558
		INSTALLATION..............................................................................................................................................................................559
	FUEL TANK.....................................................................................................................................................................................560
		REMOVAL AND INSTALLATION..................................................................................................................................................................560
	FINAL DRIVE ..................................................................................................................................................................................561
		REMOVAL AND INSTALLATION..................................................................................................................................................................561
	RECOIL SPRING.................................................................................................................................................................................569
		DISASSEMBLY AND ASSEMBLY..................................................................................................................................................................569
	IDLER.........................................................................................................................................................................................571
		DISASSEMBLY AND ASSEMBLY..................................................................................................................................................................571
	TRACK ROLLER..................................................................................................................................................................................574
		DISASSEMBLY...............................................................................................................................................................................574
		ASSEMBLY..................................................................................................................................................................................575
	CARRIER ROLLER................................................................................................................................................................................577
		DISASSEMBLY...............................................................................................................................................................................577
		ASSEMBLY..................................................................................................................................................................................578
	TRACK SHOE....................................................................................................................................................................................580
		REMOVAL AND INSTALLATION..................................................................................................................................................................580
	HYDRAULIC TANK................................................................................................................................................................................581
		REMOVAL...................................................................................................................................................................................581
		INSTALLATION..............................................................................................................................................................................582
	MAIN PUMP.....................................................................................................................................................................................583
		REMOVAL...................................................................................................................................................................................583
		INSTALLATION..............................................................................................................................................................................584
	PRESSURE REDUCING VALVE.......................................................................................................................................................................585
		DISASSEMBLY AND ASSEMBLY..................................................................................................................................................................585
	TRAVEL JUNCTION VALVE ........................................................................................................................................................................586
		DISASSEMBLY AND ASSEMBLY..................................................................................................................................................................586
	TRAVEL PPC VALVE..............................................................................................................................................................................587
		DISASSEMBLY...............................................................................................................................................................................587
		ASSEMBLY..................................................................................................................................................................................588
	CONTROL VALVE.................................................................................................................................................................................589
		REMOVAL...................................................................................................................................................................................589
		INSTALLATION..............................................................................................................................................................................590
		DISASSEMBLY AND ASSEMBLY..................................................................................................................................................................591
	PRESSURE COMPENSATION VALVE...................................................................................................................................................................592
		DISASSEMBLY AND ASSEMBLY..................................................................................................................................................................592
	PUMP MERGE/DIVIDER VALVE......................................................................................................................................................................593
		DISASSEMBLY AND ASSEMBLY..................................................................................................................................................................593
	UNLOAD VALVE..................................................................................................................................................................................594
		DISASSEMBLY AND ASSEMBLY..................................................................................................................................................................594
	SUCTION, SAFETY VALVE.........................................................................................................................................................................595
		DISASSEMBLY AND ASSEMBLY..................................................................................................................................................................595
	MAIN RELIEF VALVE.............................................................................................................................................................................596
		DISASSEMBLY AND ASSEMBLY..................................................................................................................................................................596
	CRUSHER MOTOR.................................................................................................................................................................................597
		REMOVAL AND INSTALLATION..................................................................................................................................................................597
	FEEDER MOTOR .................................................................................................................................................................................598
		REMOVAL AND INSTALLATION..................................................................................................................................................................598
	CONVEYOR MOTOR, MACHINERY MOTOR...............................................................................................................................................................599
		REMOVAL AND INSTALLATION..................................................................................................................................................................599
		DISASSEMBLY...............................................................................................................................................................................600
		ASSEMBLY..................................................................................................................................................................................602
	MUCK DISCHARGE CONVEYOR MOTOR.................................................................................................................................................................605
		REMOVAL AND INSTALLATION..................................................................................................................................................................605
	MAGNETIC SEPARATOR MOTOR......................................................................................................................................................................606
		REMOVAL AND INSTALLATION..................................................................................................................................................................606
	HYDRAULIC CYLINDER............................................................................................................................................................................607
		DISASSEMBLY...............................................................................................................................................................................607
		ASSEMBLY..................................................................................................................................................................................608
	CRUSHER.......................................................................................................................................................................................610
		DISASSEMBLY AND ASSEMBLY..................................................................................................................................................................610
	FLYWHEEL COVER ASSEMBLY.......................................................................................................................................................................611
		REMOVAL AND INSTALLATION..................................................................................................................................................................611
	V-SHEAVE COVER ASSEMBLY.......................................................................................................................................................................611
		REMOVAL AND INSTALLATION..................................................................................................................................................................611
	CHEEK PLATE...................................................................................................................................................................................612
	FIXED JAW PLATE...............................................................................................................................................................................613
	TOGGLE PLATE..................................................................................................................................................................................615
	TOGGLE SEAT...................................................................................................................................................................................619
	FLYWEEL AND V-SHEAVE..........................................................................................................................................................................621
		REMOVAL AND INSTALLATION..................................................................................................................................................................621
	SWING JAW ASSEMBLY............................................................................................................................................................................622
		REMOVAL AND INSTALLATION..................................................................................................................................................................622
	CRUSHER MAIN BEARING..........................................................................................................................................................................623
		REMOVAL...................................................................................................................................................................................623
		INSTALLATION..............................................................................................................................................................................626
	CRUSHER ASSEMBLY..............................................................................................................................................................................629
		REMOVAL...................................................................................................................................................................................629
		INSTALLATION..............................................................................................................................................................................631
	CRUSHER HOUSING...............................................................................................................................................................................632
	FEEDER ASSEMBLY...............................................................................................................................................................................649
		REMOVAL AND INSTALLATION..................................................................................................................................................................649
	CONVEYOR BELT.................................................................................................................................................................................650
		REMOVAL...................................................................................................................................................................................650
		INSTALLATION..............................................................................................................................................................................651
	CONVEYOR HEAD PULLEY..........................................................................................................................................................................652
		REMOVAL AND INSTALLATION..................................................................................................................................................................652
	CONVEYOR TAIL PULLEY..........................................................................................................................................................................653
		REMOVAL AND INSTALLATION..................................................................................................................................................................653
	MUCK DISCHARGE CONVERYOR BELT.................................................................................................................................................................654
		REMOVAL...................................................................................................................................................................................654
		INSTALLATION..............................................................................................................................................................................655
	MUCK DISCHARGE CONVERYOR HEAD PULLEY..........................................................................................................................................................656
		REMOVAL AND INSTALLATION..................................................................................................................................................................656
	MUCK DISCHARGE CONVERYOR TAIL PULLEY..........................................................................................................................................................657
		REMOVAL AND INSTALLATION..................................................................................................................................................................657
	MAGNETIC SEPARATOR ASSEMBLY...................................................................................................................................................................658
		REMOVAL...................................................................................................................................................................................658
		INSTALLATION..............................................................................................................................................................................659
90 OTHERS.........................................................................................................................................................................................660
	Electrical circuit diagram (1/3) Serial number 1001 - 1066....................................................................................................................................661
	Electrical circuit diagram (2/3) Serial number 1001 - 1066....................................................................................................................................662
	Electrical circuit diagram (3/3) Serial number 1001 - 1066....................................................................................................................................663
	Electrical circuit diagram (1/3) Serial number 1067 and up....................................................................................................................................664
	Electrical circuit diagram (2/3) Serial number 1067 and up....................................................................................................................................665
	Electrical circuit diagram (3/3) Serial number 1067 and up....................................................................................................................................666
	Hydraulic circuit diagram Serial number 1001 - 1066...........................................................................................................................................667
	Hydraulic circuit diagram Serial number 1067 and up...........................................................................................................................................668

PLEASE NOTE:

  • This is the SAME exact manual used by your dealers to fix your vehicle.
  • The same can be yours in the next 2-3 mins as you will be directed to the download page immediately after paying for the manual.
  • Any queries / doubts regarding your purchase, please feel free to contact [email protected]

1 review for KOMATSU BR550JG-1 SERVICE REPAIR MANUAL (SN:1001 & UP) KOMATSU BR550JG 1 – PDF DOWNLOAD

  1. 5 out of 5

    Zechariah Salvatore

    The books I ordered arrived in excellent condition and promptly.

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