Komatsu Wheel Loaders WA900 avance Repair Service Manual
Complete service repair manual with Electrical Wiring Diagrams for Komatsu Wheel Loaders WA900-1, WA900-3 avance, with all the technical information to maintain, diagnose, repair, rebuild like professional mechanics.
Komatsu Wheel Loaders WA900-1, WA900-3 avance workshop service repair manual includes:
* Numbered table of contents easy to use so that you can find the information you need fast.
* Detailed sub-steps expand on repair procedure information
* Numbered instructions guide you through every repair procedure step by step.
* Troubleshooting and electrical service procedures are combined with detailed wiring diagrams for ease of use.
* Notes, cautions and warnings throughout each chapter pinpoint critical information.
* Bold figure number help you quickly match illustrations with instructions.
* Detailed illustrations, drawings and photos guide you through every procedure.
* Enlarged inset helps you identify and examine parts in detail.
PRODUCT DETAILS:
Total Pages: 7,041 pages
File Format: PDF (Internal Links, Bookmarked, Table of Contents, Searchable, Printable, high quality)
Language: English
CEAM002600 - Wheel Loader WA900-1 Operation & Maintenance Manual.pdf
CEBM002300 - Wheel Loader WA900-1 Shop Manual.pdf
GEN00019-00 - Wheel Loader WA900-3 Field Assembly Manual.pdf
GEN00019-01 - Wheel Loader WA900-3 Field Assembly Manual.pdf
GEN00019 (Replaces SEAW001400) - Wheel Loader WA900-3 Field Assembly Manual.pdf
PEN00073-02 - Wheel Loader WA900-3 avance Operation & Maintenance Manual.pdf
PEN00073 - Avance Loader WA900-3 Operation & Maintenance Manual.pdf
SEAM018701 - Wheel Loader WA900-3 avance Operation & Maintenance Manual.pdf
SEBM008002 - Wheel Loader WA900-1 Shop Manual.pdf
SEBM013512 - Avance Loader WA900-3 Shop Manual.pdf
SEBM013512 - Wheel Loader WA900-3 avance Shop Manual.pdf
SEBM013516 - Wheel Loader WA900-3 avance Shop Manual.pdf
TEN00068-00 - Wheel Loader WA900-3 avance Operation & Maintenance Manual.pdf
MAIN SECTIONS
COVER....1
CONTENTS....2
01 GENERAL....31
GENERAL ASSEMBLY DRAWING....32
SPECIFICATIONS....33
WEIGHT TABLE....36
LIST OF LUBRICANT AND WATER....38
10 STRUCTURE AND FUNCTION....40
POWER TRAIN....41
POWER TRAIN SYSTEM....42
ENGINE CONTROL....44
SERVO CYLINDER....45
RADIATOR AND COOLER....49
DAMPER....52
TORQUE CONVERTER AND TRANSMISSION PIPING....53
TRANSMISSION HYDRAULIC SYSTEM DIAGRAM....54
TRANSMISSION HYDRAULIC CIRCUIT DIAGRAM....55
TORQUE CONVERTER....56
TRANSMISSION....61
TRANSFER....71
TRANSMISSION CONTROL VALVE....72
TORQUE CONVERTOR OIL COOLER....89
DRIVE SHAFT....90
CENTER SUPPORT....91
AXLE....92
FINAL DRIVE....97
AXLE MOUNT....98
CENTER HINGE PIN....100
TIRE AND WHEEL....101
STEERING PIPING DIAGRAM....102
STEERING COLUMN....105
JOYSTICK LINKAGE....106
STEERING PUMP....107
SWITCH PUMP....113
STEERING DEMAND VALVE....124
STEERING UNIT (ORBIT-ROLL VALVE)....135
PROPORTIONAL SOLENOID VALVE....138
EPC VALVE....139
ROTARY VALVE....140
TOW-WAY RESTRICTOR VALVE....143
DIVERTER VALVE....144
BRAKE PIPING....148
BRAKE CIRCUIT DIAGRAM....150
BRAKE VALVE....154
CHARGE VALVE....164
ACCUMULATOR (FOR BRAKE)....168
SLACK ADJUSTER....169
BRAKE....172
PARKING BRAKE....173
SPRING CYLINDER....176
PARKING BRAKE SOLENOID VALVE....177
HYDRAULIC PIPING....178
WORK EQUIPMENT HYDRAULIC CIRCUIT DIAGRAM....181
WORK EQUIPMENT LEVER LINKAGE....193
HYDRAULIC TANK....194
MAIN PISTON PUMP....197
ES VALVE (ENGINE SENSING VALVE)....208
SERVO VALVE....210
PPC VALVE (PROPORTIONAL PRESSURE VALVE)....213
PPC RELIEF VALVE....217
ACCUMULATOR (FOR PPC VALVE)....218
MAIN CONTROL VALVE....219
COOLING FAN HYDRAULIC PIPING....243
COOLING FAN HYDRAULIC CIRCUIT DIAGRAM....244
PRIORITY VALVE....245
COOLING FAN MOTOR....246
LUBRICATION OF WORK EQUIPMENT....250
WORK EQUIPMENT LINKAGE....252
BUCKET POSITIONER AND BOOM KICK-OUT....254
OPERATION OF PROXIMITY SWITCH....256
CAB....260
ROPS CANOPY....261
AIR CONDITIONER....262
ELECTRIC CIRCUIT DIAGRAM....265
MACHINE MONITOR SYSTEM....266
MAIN MONITOR....268
MAINTENANCE MONITOR....274
MULTI MONITOR SYSTEM (IF EQUIPPED)....276
ENGINE STARTING CIRCUIT....298
ENGINE STOP CIRCUIT....301
PREHEATING CIRCUIT....302
ELECTRICAL TRANSMISSION CONTROL....303
KICK-DOWN, HOLD SWITCH....306
JOYSTICK STEERING SYSTEM....307
TRANSMISSION AND JOYSTICK STEERING CONTROLLER....309
AJSS (ADVANCED JOYSTICK STEERING SYSTEM)....311
TRANSMISSION AND JOYSTICK STEERING CONTROLLER....315
ELECTRIC PARKING BRAKE CONTROL....317
BRAKE COOLING SYSTEM (IF EQUIPPED)....326
55? SPECIFICATION....335
EMERGENCY ENGINE STOP (FOR RIO TINTO)....339
HYDRAULIC OIL LEVEL SENSOR (FOR RIO TINTO)....342
BATTERY AND STARTER ISOLATOR, BATTERY JUMP START (FOR RIO TINTO)....345
20 TESTING AND ADJUSTING....348
STANDARD VALUE TABLE FOR ENGINE....349
STANDARD VALUE TABLE FOR CHASSIS....350
STANDARD VALUE TABLE FOR ELECTRICAL PARTS....356
TESTING AND ADJUSTING....374
TABLE OF TOOLS FOR TESTING, ADJUSTING, AND TROUBLESHOOTING....375
MEASURING ENGINE SPEED....376
MEASURING EXHAUST GAS COLOR....378
ADJUSTING VALVE CLEARANCE....379
MEASURING COMPRESSION PRESSURE....380
MEASURING BLOW-BY PRESSURE....381
TESTING AND ADJUSTING FUEL INJECTION TIMING....382
MEASURING ENGINE OIL PRESSURE....384
MEASURING EXHAUST TEMPERATURE....385
MEASURING AIR SUPPLY PRESSURE (BOOST PRESSURE)....386
TESTING AND ADJUSTING ALTERNATOR BELT TENSION....387
TESTING AND ADJUSTING BELT TENSION FOR AIR CONDITIONER COMPRESSOR....388
MEASURING ACCELERATOR PEDAL OPERATING EFFORT....389
MEASURING ACCELERATOR PEDAL OPERATING ANGLE....390
ADJUSTING FUEL CONTROL CABLE, LINKAGE, AND SERVO CYLINDER....391
ADJUSTING ENGINE STOPPING MOTOR CABLE....393
TESTING AND ADJUSTING TORQUE CONVERTER AND TRANSMISSION OIL PRESSURE....395
PROCEDURE FOR OPERATING EMERGENCY STEERING SPOOL WHEN TRANSMISSION VALVE FAILS....398
TESTING AND ADJUSTING STEERING OIL PRESSURE....400
TESTING AND ADJUSTING EMERGENCY STEERING OIL PRESSURE....401
BLEEDING AIR FROM STEERING CIRCUIT....403
TESTING AND ADJUSTING STEERING STOP VALVE....404
TESTING AND ADJUSTING STEERING STOPPER BOLT....405
TESTING AND ADJUSTING STEERING LEVER ANGLE SENSOR AND FRAME ANGLE SENSOR....406
TESTING WHEEL BRAKE PERFORMANCE....407
TESTING WHEEL BRAKE OIL PRESSURE DROP....408
MEASURING WEAR OF WHEEL BRAKE DISC....410
TESTING AND ADJUSTING ACCUMULATOR CHARGE CUT-IN AND CUT-OUT PRESSURE....411
BLEEDING AIR FROM WHEEL BRAKE CIRCUIT....413
TESTING PARKING BRAKE PERFORMANCE....414
MEASURING PARKING BRAKE SOLENOID OUTPUT PRESSURE....415
CHECKING AND ADJUSTING PARKING BRAKE PAD ....416
TESTING AND ADJUSTING PPC PRESSURE....418
ADJUSTING PPC VALVE LINKAGE....420
TESTING AND ADJUSTING WORK EQUIPMENT HYDRAULIC PRESSURE....421
BLEEDING AIR FROM PISTON PUMP....423
BLEEDING AIR FROM WORK EQUIPMENT CIRCUIT....424
ADJUSTING WORK EQUIPMENT LEVER LINKAGE....425
RELEASING REMAINING PRESSURE IN HYDRAULIC CIRCUIT....427
TESTING AND ADJUSTING BUCKET PROXIMITY SWITCH....428
TESTING AND ADJUSTING BOOM PROXIMITY SWITCH....429
TESTING PROXIMITY ACTUATION PILOT LAMP....430
ADJUSTING SPEEDOMETER MODULE OF MAIN MONITOR....431
ADJUSTING JOYSTICK LEVER POTENTIOMETER....432
ADJUSTING JOYSTICK LEVER NEUTRAL DETECTION SWITCH....433
TROUBLESHOOTING....434
POINTS TO REMEMBER WHEN TROUBLESHOOTING....435
SEQUENCE OF EVENTS IN TROUBLESHOOTING....436
POINTS TO REMEMBER WHEN CARRYING OUT MAINTENANCE....437
CHECKS BEFORE TROUBLESHOOTING....445
TYPES AND LOCATIONS OF CONNECTORS....446
CONNECTOR ARRANGEMENT DIAGRAM....453
WIRING TABLE FOR CONNECTOR PIN NUMBERS....459
T-ADAPTER BOX AND T-ADAPTER TABLE....492
EXPLANATION OF FUNCTIONS OF ELECTRIC CONTROL MECHANISM....495
METHOD OF DISPLAYING ACTION CODE AND FAILURE CODE....500
CHART OF ACTION CODES AND FAILURE CODES, AND RE-ENACTION....502
TRANSMISSION CONTROLLER LED DISPLAY....507
METHOD OF USING JUDGEMENT TABLE....508
METHOD OF USING TROUBLESHOOTING CHARTS....509
METHOD OF USING MATRIX TROUBLESHOOTING TABLES....511
TROUBLESHOOTING OF ENGINE SYSTEM (S MODE)....513
METHOD OF USING TROUBLESHOOTING CHARTS....514
S-1 STARTING PERFORMANCE IS POOR (STARTING ALWAYS TAKES TIME)....518
S-2 ENGINE DOES NOT START....519
? ENGINE DOES NOT TURN....519
? ENGINE TURNS BUT NO EXHAUST GAS COMES OUT (FUEL IS NOT BEING INJECTED)....520
? EXHAUST GAS COMES OUT BUT ENGINE DOES NOT START (FUEL IS BEING INJECTED)....521
S-3 ENGINE DOES NOT PICK UP SMOOTHLY (FOLLOW-UP IS POOR)....522
S-4 ENGINE STOPS DURING OPERATIONS....523
S-5 ENGINE DOES NOT ROTATE SMOOTHLY (HUNTING)....524
S-6 ENGINE LACKS UOTPUT (NO POWER)....525
S-7 EXHAUST GAS IS BLACK (INCOMPLETE COMBUSTION)....526
S-8 OIL CONSUMPTION IS EXCESSIVE (OR EXHAUST GAS IS BLUE)....527
S-9 OIL BECOMES CONTAMINATED QUICKLY....528
S-10 FUEL CONSUMPTION IS EXCESSIVE....529
S-11 OIL IS IN COOLING WATER, OR WATER SPURTS BACK, OR WATER LEVEL GOES DOWN....530
S-12 OIL PRESSURE LAMP LIGHTS UP (DROP IN OIL PRESSURE)....531
S-13 OIL LEVEL RISES....532
S-14 WATER TEMPERATURE BECOMES TOO HIGH (OVERHEATING)....533
S-15 ABNORMAL NOISE IS MADE....534
S-16 VIBRATION IS EXCESSIVE....535
TROUBLESHOOTING OF TRANSMISSION CONTROL SYSTEM (T MODE)....536
JUDGEMENT TABLE FOR TRANSMISSION CONTROL SYSTEM RELATED PARTS....537
ACTION TAKEN BY CONTROLLER WHEN ABNORMALITY OCCURS AND PROBLEMS ON MACHINE....539
ELECTRICAL CIRCUIT DIAGRAM FOR TRANSMISSION CONTROL SYSTEM....547
T-1 FAILURE CODE [10] (SHORT CIRCUIT, DISCONNECTION, SHORT CIRCUIT WITH POWER SOURCE IN BACKUP LAMP RELAY) IS DISPLAYED....551
STEERING WHEEL SPECIFICATION, STEERING WHEEL AND JOYSTICK STEERING SPECIFICATION....551
T-2 FAILURE CODE [10] (SHORT CIRCUIT, DISCONNECTION, SHORT CIRCUIT WITH POWER SOURCE IN BACKUP LAMP RELAY) IS DISPLAYED....552
AJSS (ADVANCED JOYSTICK STEERING SYSTEM) SPECIFICATION....552
T-3 FAILURE CODE [12] (SHORT CIRCUIT, DISCONNECTION, SHORT CIRCUIT WITH POWER SOURCE IN F SOLENOID) IS DISPLAYED....553
T-4 FAILURE CODE [13] (SHORT CIRCUIT, DISCONNECTION, SHORT CIRCUIT WITH POWER SOURCE IN R SOLENOID) IS DISPLAYED....554
T-5 FAILURE CODE [14] (SHORT CIRCUIT, DISCONNECTION, SHORT CIRCUIT WITH POWER SOURCE IN 1ST SOLENOID) IS DISPLAYED....555
T-6 FAILURE CODE [15] (SHORT CIRCUIT, DISCONNECTION, SHORT CIRCUIT WITH POWER SOURCE IN 2ND SOLENOID) IS DISPLAYED....556
T-7 FAILURE CODE [16] (SHORT CIRCUIT, DISCONNECTION, SHORT CIRCUIT WITH POWER SOURCE IN 3RD SOLENOID) IS DISPLAYEED....557
T-8 FAILURE CODE [19] (SHORT CIRCUIT, DISCONNECTION IN JOYSTICK DIRECTIONAL SWITCH SYSTEM) IS DISPLAYED....558
T-9 FAILURE CODE [20] (SHORT CIRCUIT, DISCONNECTION IN DIRECTIONAL SWITCH SYSTEM) IS DISPLAYED....559
STEERING WHEEL SPECIFICATION, STEERING WHEEL AND JOYSTICK STEERING SPECIFICATION....559
T-10 FAILURE CODE [20] (SHORT CIRCUIT OR DISCONNECTION IN JOYSTICK DIRECTIONAL SWITCH SYSTEM) IS DISPLAYED....562
AJSS (ADVANCED JOYSTICK STEERING SYSTEM) SPECIFICATION....562
T-11 FAILURE CODE [21] (SHORT CIRCUIT, DISCONNECTION IN RANGE SWITCH SYSTEM) IS DISPLAYED....563
STEERING WHEEL SPECIFICATION, STEERING WHEEL AND JOYSTICK STEERING SPECIFICATION....563
T-12 FAILURE CODE [21] (SHORT CIRCUIT OR DISCONNECTION IN JOYSTICK SHIFT-UP/SHIFT-DOWN SWITCH SYSTEM) IS DISPLAYED....566
T-13 FAILURE CODE [22] (DISCONNECTION IN TRAVEL SPEED SENSOR) IS DISPLAYED....567
T-14 FAILURE CODE [23] (SHORT CIRCUIT, DISCONNECTION IN ENGINE SPEED SENSOR SYSTEM) IS DISPLAYED....568
T-15 KICKDOWN SWITCH SIGNAL SYSTEM AND HOLD SWITCH SIGNAL SYSTEM....569
T-16 SHIFT-DOWN SWITCH SIGNAL SYSTEM AND SHIFT-UP SWITCH SIGNAL SYSTEM....570
T-17 TRANSMISSION CUT-OFF SIGNAL SYSTEM....571
T-18 NEUTRALIZER SIGNAL SYSTEM....572
T-19 BUZZER SIGNAL SYSTEM....573
T-20 NETWORK SYSTEM....574
T-21 TRANSMISSION CONTROLLER POWER SOURCE SYSTEM....575
T-22 SHORT CIRCUIT IN TRAVEL SPEED SENSOR SYSTEM....576
T-23 ABNORMALITY IN MACHINE SELECTION WIRING HARNESS....577
TROUBLESHOOTING OF MAIN MONITOR SYSTEM (M MODE)....578
TROUBLE DATA DISPLAY....580
ELECTRICAL CIRCUIT DIAGRAM FOR MAIN MONITOR SYSTEM....582
M-1 MAIN MONITOR DOES NOT WORK....584
M-2 WHEN STARTING SWITCH IS TURNED ON (WITHIN 3 SECONDS) AND ENGINE IS STARTED IMMEDIATELY, ALL LAMPS STAY LIGHTED UP....585
M-3 SPEEDOMETER DISPLAY DOES NOT WORK PROPERLY....586
M-4 ABNORMALITY IN SHIFT INDICATOR....587
a) DISPLAYS N EVEN WHEN DIRECTIONAL LEVER IS AT F....587
b) DISPLAYS N EVEN WHEN DIRECTIONAL LEVER IS AT R....587
c) DOES NOT DISPLAY N EVEN WHEN DIRECTIONAL LEVER IS AT N (DISPLAY 1ST-3RD)....588
d) DOES NOT DISPLAY 1ST EVEN WHEN GEAR SHIFT LEVER IS AT 1ST POSITION (DIRECTIONAL LEVER IS AT F OR R POSITION)....588
e) DOES NOT DISPLAY 2ND EVEN WHEN GEAR SHIFT IS AT 2ND POSITION (DIRECTION LEVER IS AT F OR R POSITION)....588
f) DOES NOT DISPLAY 3RD EVEN WHEN THE GEAR SHIFT IS AT 3RD POSITION (DIRECTION LEVER IS AT F OR R POSITION)....589
M-5 HIGH BEAM DISPLAY DOES NOT LIGHT UP....590
M-6 TURN SIGNAL DISPLAY DOES NOT LIGHT UP....591
a) L.H. TURN SIGNAL DISPLAY DOES NOT LIGHT UP....591
b) R.H. TURN SIGNAL DISPLAY DOES NOT LIGHT UP....591
M-7 ABNORMALITY IN PARKING DISPLAY....592
a) PARKING LAMP DISPLAY DOES NOT LIGHT UP....592
b) PARKING LAMP DISPLAY STAYS LIGHTED UP....592
M-8 ABNORMALITY IN PREHEATING SYSTEM....593
a) DOES NOT CARRY OUT PREHEATING....593
b) ALWAYS CARRIES OUT PREHEATING FOR 45 SECONDS ....594
c) PREHEATING STAYS ON....594
d) PREHEATING TIME BECOMES SHORTER, OR THERE IS VARIATION....595
M-9 NIGHT LIGHTING DOES NOT LIGHT UP....597
M-10 ABNORMALITY IN FRONT WORKING LAMP....598
a) NEITHER MONITOR DISPLAY NOR FRONT WORKING LAMP LIGHT UP....598
b) WORKING LAMP LIGHTS UP BUT MONITOR DISPLAY DOES NOT LIGHT UP....598
c) MONITOR DISPLAY LIGHTS UP BUT FRONT WORKING LAMP DOES NOT LIGHT UP....598
M-11 ABNORMALITY IN REAR WORKING LAMP....600
a) NEITHER MONITOR DISPLAY NOR REAR WORKING LAMP LIGHT UP ....600
b) REAR WORKING LAMP LIGHTS UP BUT MONITOR DISPLAY DOES NOT LIGHT UP ....600
c) MONITOR DISPLAY LIGHTS UP BUT REAR WORKING LAMP DOES NOT LIGHT UP....600
M-12 ABNORMALITY IN TRANSMISSION CUT-OFF....602
a) WHEN MONITOR SWITCH (TRANSMISSION CUT-OFF SWITCH) IS PRESSED, CUT-OFF FUNCTION IS NOT SWITCHED AND DISPLAY DOES NOT CHANGE....602
b) WHEN MONITOR SWITCH (TRANSMISSION CUT-OFF SWITCH) IS OFF, MONITOR DISPLAY GOES OUT BUT CUT-OFF FUNCTION IS ACTUATED WHEN PEDAL IS DEPRESSED....602
c) WHEN MONITOR DISPLAY IS TURNED OFF (TRANSMISSION CUT-OFF SWITCH TURNED OFF), CUT-OFF FUNCTION IS ALWAYS ACTUATED....602
d) CUT-OFF FUNCTION IS ALWAYS ACTUATED REGARDLESS OF MONITOR DISPLAY (TRANSMISSION CUT-OFF SWITCH ON OR OFF)....602
e) MONITOR DISPLAY LIGHTS UP (TRANSMISSION CUT-OFF SWITCH TURNED ON), BUT CUT-OFF FUNCTION IS NOT ACTUATED....603
M-13 ABNORMALITY IN LOW IDLING SELECTION....604
a) WHEN MONITOR SWITCH (LOW IDLE SELECTOR SWITCH) IS TURNED ON, THE LOW IDLING SPEED DOES NOT RISE AND DISPLAY DOES NOT CHANGE ....604
b) WHEN THE MONITOR SWITCH (LOW IDLE SELECTOR SWITCH) IS TURNED ON, THE MONITOR LIGHTS UP BUT THE LOW IDLING SPEED DOES NOT RISE....604
c) WHEN THE MONITOR SWITCH (LOW IDLE SELECTOR SWITCH) IS TURNED OFF, THE MONITOR GOES OFF BUT THE LOW IDLING SPEED DOES NOT LOWER....605
M-14 ABNORMALITY IN EMERGENCY STEERING NORMAL DISPLAY....606
EMERGENCY STEERING NORMAL DISPLAY DOES NOT LIGHT UP....606
M-15 ABNORMALITY IN EMERGENCY STEERING ACTUATION DISPLAY....607
a) EMERGENCY STEERING ACTUATION DISPLAY DOES NOT LIGHT UP....607
b) EMERGENCY STEERING ACTUATION DISPLAY STAYS LIGHTED UP....607
M-16 ABNORMALITY IN PARKING BRAKE DRAGGING WARNING....608
a) WHEN PARKING BRAKE IS APPLIED, BUZZER SOUNDS (INTERMITTENTLY) AND CAUTION LAMP FLASHES EVEN WHEN DIRECTIONAL LEVER IS AT N....608
b) WHEN PARKING BRAKE IS APPLIED, BUZZER DOES NOT SOUND AND CAUTION LAMP DOES NOT LIGHT UP EVEN WHEN DIRECTIONAL LEVER IS AT POSITION OTHER THAN N....608
M-17 ABNORMALITY IN PARKING BRAKE DRAGGING WARNING (WHEN JOYSTICK STEERING MODE (OP))....610
a) WHEN PARKING BRAKE IS APPLIED, BUZZER SOUNDS (INTERMITTENTLY) AND CAUTION LAMP FLASHES EVEN WHEN DIRECTIONAL LEVER IS AT N....610
b) WHEN PARKING BRAKE IS APPLIED, BUZZER DOES NOT SOUND AND CAUTION LAMP DOES NOT LIGHT UP EVEN WHEN DIRECTIONAL LEVER IS AT POSITION OTHER THAN N....610
M-18 WHEN PARKING BRAKE DRAGGING WARNING IS GIVEN, BUZZER AND CAUTION LAMP ARE ACTUATED CONTINUOUSLY, OR THEY ARE NOT ACTUATED....612
a) ACTUATED CONTINUOUSLY....612
b) NOT ACTUATED....612
M-19 ABNORMALITY IN BUZZER....613
a) BUZZER DOES NOT SOUND WHEN STARTING SWITCH IS AT ON (FOR 3 SECONDS) (DURING SELF-CHECK)....613
b) BUZZER ALWAYS SOUNDS....613
M-20 CONDITION OF MONITOR SWITCHES IS NOT STORED IN MEMORY....614
M-21 ABNORMALITY IN FAILURE DISPLAY MODE....615
a) DOES NOT ENTER FAILURE DISPLAY MODE....615
b) COUNT FOR TIME ELAPSED SINCE FAILURE DISPLAY MODE DOES NOT ADVANCE....615
M-22 BUZZER IS NOT MADE TO SOUND BY TRANSMISSION & JOYSTICK STEERING CONTROLLER....616
M-23 ABNORMALITY IN AUTO-GREASING SYSTEM (OP)....617
a) FORCED GREASING CANNOT BE CARRIED OUT....617
b) MONITOR DISPLAY FLASHES RAPIDLY (2 TIMES/SEC)....617
c) WHEN NO MORE GREASE REMAINS, MONITOR DISPLAY FLASHES RAPIDLY (2 TIMES/SEC)....617
d) MONITOR DISPLAY FLASHES SLOWLY (1 TIME/SEC) CONFIRM THAT GREASE IS NOT EMPTY....618
e) MONITOR DISPLAY GOES OUT....618
M-24 FAILURE CODE IS NOT SENT TO MAIN MONITOR (ABNORMALITY IN NETWORK) (OP)....619
TROUBLESHOOTING OF MAINTENANCE MONITOR SYSTEM (K MODE)....620
ELECTRICAL CIRCUIT DIAGRAM FOR MAINTENANCE MONITOR SYSTEM....621
K-1 WHEN STARTING SWITCH IS TURNED ON, ALL LAMPS ON MAINTENANCE MONITOR DO NOT LIGHT UP FOR 3 SECONDS, MAINTENANCE MONITOR DOES NOT WORK....623
a) NO LAMPS ON MAINTENANCE MONITOR LIGHT UP....623
b) SOME LAMPS DO NOT LIGHT UP....623
K-2 WHEN STARTING SWITCH IS TURNED ON, ALL LAMPS ON MAINTENANCE MONITOR LIGHT UP BUT DO NOT GO OUT (EVEN AFTER 3 SECONDS)....624
K-3 WHEN ENGINE IS STARTED IMMEDIATELY AFTER STARTING SWITCH IS TURNED ON (WITHIN 3 SECONDS), NO LAMPS ON MAINTENANCE MONITOR GO OUT....625
K-4 WHEN STARTING SWITCH IS TURNED ON (ENGINE STOPPED), CHECK ITEMS FLASH....626
a) ENGINE OIL LEVEL DISPLAY FLASHES....626
b) ENGINE WATER LEVEL DISPLAY FLASHES....627
K-5 WHEN STARTING SWITCH IS TURNED ON (ENGINE STARTED), CAUTION ITEMS FLASH....628
a) ENGINE OIL PRESSURE DISPLAY FLASHES....628
b) BATTERY CHARGE LEVEL DISPLAY FLASHES....629
c) BRAKE OIL PRESSURE DISPLAY FLASHES....630
d) AIR CLEANER (R.H.) CLOGGING DISPLAY FLASHES....632
e) AIR CLEANER (L.H.) CLOGGING DISPLAY FLASHES....633
f) TRANSMISSION OIL FILTER DISPLAY FLASHES....634
K-6 CAUTION ITEMS ARE FLASHING BUT BUZZER DOES NOT SOUND....635
K-7 THERE IS NO ABNORMALITY IN MONITOR DISPLAY BUT CAUTION BUZZER SOUNDS....636
K-8 CAUTION ITEMS ARE FLASHING BUT NEITHER CHECK LAMP NOR CAUTION LAMP FLASHES....637
a) CHECK LAMP....637
b) CAUTION LAMP....637
K-9 THERE IS NO ABNORMALITY IN MAINTENANCE MONITOR DISPLAY BUT CHECK LAMP OR CAUTION LAMP LIGHTS UP ....638
a) CHECK LAMP....638
b) CAUTION LAMP....638
K-10 ONLY NIGHT LIGHTING OF MAINTENANCE MONITOR DOES NOT LIGHT UP WHEN LIGHTING SWITCH IS TURNED ON....639
K-11 NIGHT LIGHTING LIGHTS UP EVEN WHEN LIGHTING SWITCH IS TURNED OFF....640
K-12 SERVICE METER DOES NOT WORK....641
K-13 SERVICE METER IS RUNNING EVEN WHEN ENGINE IS STOPPED....641
K-14 ABNORMALITY IN GAUGE DISPLAY....642
a) ABNORMALITY IN FUEL GAUGE....642
b) ABNORMALITY IN ENGINE WATER TEMPERATURE GAUGE....643
c) ABNORMALITY IN TORQUE CONVERTER OIL TEMPERATURE GAUGE....644
TROUBLESHOOTING OF ELECTRICAL SYSTEM (E MODE)....645
ELECTRICAL CIRCUIT DIAGRAM FOR POWER SUPPLY, ENGINE STARTING, ENGINE STOPPING AND PREHEATING....646
ELECTRICAL CIRCUIT DIAGRAM FOR PARKING BRAKE....648
ELECTRICAL CIRCUIT DIAGRAM FOR BOOM KICK-OUT AND BUCKET POSITIONER....649
E-1 ENGINE DOES NOT START....650
a) STARTING MOTOR DOES NOT TURN....650
b) STARTING MOTOR TURNS (STD SPEC.)....654
E-2 ENGINE DOES NOT STOP (STD SPEC.)....656
E-3 ENGINE STOPS WHEN MACHINE IS TRAVELING (STD SPEC.)....657
E-4 ABNORMALITY IN PREHEATING SYSTEM....659
a) DOES NOT CARRY OUT PREHEATING....659
b) ALWAYS CARRIES OUT PREHEATING FOR 45 SECONDS....660
c) PREHEATING STAYS ON....660
d) PREHEATING TIME BECOMES SHORTER, OR THERE IS FLUCTUATION....661
E-5 PARKING BRAKE DOES NOT HAVE EFFECT....663
a) PARKING BRAKE HAS NO EFFECT WHEN PARKING BRAKE SWITCH IS TURNED ON....663
b) PARKING BRAKE HAS NO EFFECT WHEN BRAKE PRESSURE (ACCUMULATOR PRESSURE) DROPS (DOES NOT WORK AS EMERGENCY BRAKE)....663
E-6 PARKING BRAKE IS APPLIED WHEN MACHINE IS TRAVELING....664
E-7 PARKING BRAKE IS RELEASED WHEN STARTING SWITCH IS TURNDED ON....666
E-8 TRANSMISSION DOES NOT CHANGE TO NEUTRAL WHEN PARKING BRAKE IS APPLIED (BUT PARKING BRAKE WORKS NORMALLY)....666
E-9 KICK-DOWN SWITCH DOES NOT WORK....668
a) KICK-DOWN SWITCH DOES NOT WORK EVEN THOUGH GEAR SHIFT WORKS NORMALLY....668
b) KICK-DOWN CANNOT BE CANCELED....669
E-10 BOOM KICK-OUT DOES NOT WORK....670
E-11 ABNORMALITY IN BUCKET POSITIONER FUNCTION....673
E-12 ABNORMALITY IN LIGHTING UP OF FRONT WORKING LAMP....676
E-13 ABNORMALITY IN LIGHTING UP OF REAR WORKING LAMP....676
E-14 ABNORMALITY IN TRANSMISSION CUT-OFF....676
E-15 ABNORMALITY IN LOW IDLING SELECTION....676
E-16 ABNORMALITY IN PARKING BRAKE DRAGGING WARNING ....676
E-17 ABNORMALITY IN BUZZER ....676
TROUBLESHOOTING OF HYDRAULIC AND MECHANICAL SYSTEM (H MODE)....677
H-1 MACHINE DOES NOT MOVE....678
H-2 MACHINE LACKS POWER OR SPEED (EVERY SPEED RANGE)....679
H-3 EXCESSIVE TIME LAG WHEN STARTING MACHINE OR SHIFTING GEAR....680
H-4 TORQUE CONVERTER OIL TEMPERATURE IS HIGH....681
H-5 STEERING DOES NOT TURN....682
STEERING WHEEL SPECIFICATION....682
H-6 STEERING DOES NOT TURN....683
STEERING WHEEL AND JOYSTICK STEERING SPECIFICATION....683
H-7 STEERING DOES NOT TURN....684
AJSS (ADVANCED JOYSTICK STEERING SYSTEM) SPECIFICATION....684
H-8 TURNING, RESPONSE OF STEERING IS POOR....685
STEERING WHEEL SPECIFICATION....685
H-9 TURNING, RESPONSE OF STEERING IS POOR....686
STEERING WHEEL AND JOYSTICK STEERING SPECIFICATION....686
H-10 TURNING, RESPONSE OF STEERING IS POOR....687
AJSS (ADVANCED JOYSTICK STEERING SYSTEM) SPECIFICATION....687
H-11 STEERING IS HEAVY....688
STEERING WHEEL SPECIFICATION....688
H-12 JOYSTICK LEVER IS HEAVY....688
STEERING WHEEL AND JOYSTICK STEERING SPECIFICATION....688
H-13 JOYSTICK LEVER IS HEAVY....689
AJSS (ADVANCED JOYSTICK STEERING SYSTEM) SPECIFICATION....689
H-14 STEERING WHEEL SHAKES OR JERKS....690
STEERING WHEEL SPECIFICATION....690
H-15 STEERING WHEEL SHAKES OR JERKS....691
STEERING WHEEL AND JOYSTICK STEERING SPECIFICATION....691
H-16 STEERING WHEEL SHAKES OR JERKS....692
AJSS (ADVANCED JOYSTICK STEERING SYSTEM) SPECIFICATION....692
H-17 MINIMUM TURNING RADII TO RIGHT AND LEFT ARE DIFFERENT....693
STEERING WHEEL SPECIFICATION, STEERING WHEEL AND JOYSTICK STEERING SPECIFICATION....693
H-18 MINIMUM TURNING RADII TO RIGHT AND LEFT ARE DIFFERENT....693
AJSS (ADVANCED JOYSTICK STEERING SYSTEM) SPECIFICATION....693
H-19 WHEEL BRAKES DO NOT WORK OR BRAKING EFFECT IS POOR....694
H-20 WHEEL BRAKES ARE NOT RELEASED OR BRAKES DRAG....695
H-21 BOOM DOES NOT RISE....696
H-22 BOOM MOVES SLOWLY OR DOES NOT HAVE SUFFICIENT LIFTING POWER....697
H-23 WHEN RAISING BOOM, BECOMES SLOW AT CERTAIN HEIGHT....698
H-24 BOOM CYLINDER CANNOT HOLD DOWN BUCKET....698
H-25 BOOM HAS LARGE AMOUNT OF HYDRAULIC DRIFT....698
H-26 BOOM FLUCTUATES WHILE WORKING....699
H-27 BOOM DROPS MOMENTARILY WHEN LEVER IS OPERATED FROM HOLD TO RAISE....699
H-28 BUCKET DOES NOT TILT BACK....700
H-29 BUCKET MOVES SLOWLY OR HAS INSUFFICIENT TILT BACK POWER....701
H-30 BUCKET MOVEMENT BECOMES SLOW DURING TILT BACK....702
H-31 BUCKET CYLINDER CANNOT HOLD DOWN BUCKET....702
H-32 BUCKET HAS LARGE AMOUNT OF HYDRAULIC DRIFT....702
H-33 BUCKET FLUCTUATES WHILE TRAVELING UNDER LOAD (WORK EQUIPMENT VALVE ?HOLD?)....703
H-34 BUCKET DUMPS MOMENTARILY WHEN LEVER IS OPERATED FROM HOLD TO TILT....703
H-35 BOOM AND BUCKET LEVERS DO NOT MOVE SMOOTHLY....704
TROUBLESHOOTING OF JOYSTICK STEERING CONTROL SYSTEM (J MODE)....705
JUDGEMENT TABLE FOR JOYSTICK STEERING CONTROL SYSTEM RELATED PARTS....706
ACTION TAKEN BY CONTROLLER WHEN ABNORMALITY OCCURS AND PROBLEMS ON MACHINE....707
ELECTRICAL CIRCUIT DIAGRAM FOR JOYSTICK STEERING CONTROL SYSTEM....711
J-1 FAILURE CODE [56] (SHORT CIRCUIT, DISCONNECTION IN CAUTION RELAY OUTPUT) IS DISPLAYED....713
J-2 FAILURE CODE [57] (SHORT CIRCUIT IN STEERING RIGHT SOLENOID (DETECTED WHEN SIGNAL IS OUTPUT)) IS DISPLAYED....714
J-3 FAILURE CODE [58] (SHORT CIRCUIT IN STEERING LEFT SOLENOID (DETECTED WHEN SIGNAL IS OUTPUT)) IS DISPLAYED....715
J-4 FAILURE CODE [59] (SHORT CIRCUIT IN STEERING RIGHT SOLENOID (POWER SUPPLY SIDE)) IS DISPLAYED....716
J-5 FAILURE CODE [60] (SHORT CIRCUIT IN STEERING LEFT SOLENOID (POWER SUPPLY SIDE)) IS DISPLAYED....717
J-6 FAILURE CODE [61] (SHORT CIRCUIT, DISCONNECTION IN STEERING SOLENOID CUT RELAY OUTPUT) IS DISPLAYED....718
J-7 FAILURE CODE [62] (SHORT CIRCUIT, DISCONNECTION IN JOYSTICK STEERING NEUTRAL CIRCUIT) IS DISPLAYED....719
J-8 FAILURE CODE [63] (SHORT CIRCUIT, DISCONNECTION IN JOYSTICK STEERING LEVER POTENTIOMETER) IS DISPLAYED....720
J-9 ABNORMALITY IN POWER SUPPLY, POWER SUPPLY VOLTAGE....721
J-10 ABNORMALITY IN JOYSTICK STEERING ON-OFF CIRCUIT....722
J-11 DISCONNECTION IN STEERING RIGHT SOLENOID....723
J-12 DISCONNECTION IN STEERING LEFT SOLENOID....724
TROUBLESHOOTING OF AJSS (ADVANCED JOYSTICK STEERING SYSTEM) CONTROL SYSTEM (A MODE)....725
JUDGEMENT TABLE FOR AJSS (ADVANCED JOYSTICK STEERING SYSTEM) CONTROL SYSTEM....726
OPERATIONS OF CONTROLLER AGAINST ABNORMALITY AND CONDITIONS OF MACHINE CAUSED BY ABNORMALITY....727
ELECTRIC CIRCUIT DIAGRAM RELATED TO AJSS (ADVANCED JOYSTICK STEERING SYSTEM) CONTROL....731
A-1 ERROR CODE [56] (DISCONNECTION OR SHORT CIRCUIT WITH CHASSIS GROUND IN CAUTION BUZZER RELAY SYSTEM) IS DISPLAYED....733
A-2 ERROR CODE [57] (DISCONNECTION OR SHORT CIRCUIT WITH CHASSIS GROUND IN STEERING LEVER ANGLE SENSOR SYSTEM) IS DISPLAYED....734
A-3 ERROR CODE [58] (DEVIATION OF STEERING LEVER ANGLE SENSOR AND FRAME ANGLE SENSOR SIGNALS) IS DISPLAYED....735
A-4 ERROR CODE [59] (DISCONNECTION OR SHORT CIRCUIT WITH CHASSIS GROUND IN FRAME ANGLE SENSOR SYSTEM) IS DISPLAYED....736
A-5 ERROR CODE [60] (DISCONNECTION OR SHORT CIRCUIT WITH CHASSIS GROUND IN STEERING LEVER LOCK PRESSURE SWITCH SYSTEM) IS DISPLAYED....737
A-6 ERROR CODE [62] (DISCONNECTION OR SHORT CIRCUIT WITH CHASSIS GROUND IN STEERING NEUTRAL INTERLOCK RELAY SYSTEM) IS DISPLAYED....738
A-7 ERROR CODE [63] (DISCONNECTION, SHORT CIRCUIT WITH CHASSIS GROUND, OR SHORT CIRCUIT WITH POWER SOURCE IN STEERING MAIN PRESSURE CONTROL EPC SOLENOID SYSTEM) IS DISPLAYED....739
A-8 STEERING SPEEDS IN BOTH DIRECTIONS ARE DIFFERENT....740
A-9 ABNORMALITY IN CONSOLE SWITCH (ADJUSTMENT OF STEERING LEVER ANGLE SENSOR AND FRAME ANGLE SENSOR IS IMPOSSIBLE)....741
A-10 ABNORMALITY IN POWER SOURCE AND VOLTAGE....742
30 DISASSEMBLY AND ASSEMBLY....743
HOW TO READ THIS MANUAL....745
STANDARD TIGHTENING TORQUE TABLE....747
PRECAUTIONS WHEN CARRYING OUT OPERATION....751
METHOD OF DISASSEMBLING AND CONNECTING PUSH-PULL TYPE COUPLER....754
COATING MATERIALS LIST....757
SPECIAL TOOL LIST....760
SKETCHES OF SPECIAL TOOLS....767
STARTING MOTOR....775
REMOVAL AND INSTALLATION....775
ALTERNATOR....776
REMOVAL AND INSTALLATION....776
ENGINE OIL COOLER....777
REMOVAL AND INSTALLATION....777
FUEL INJECTION PUMP FOR LEFT BANK....778
REMOVAL AND INSTALLATION (WITH GOVERNOR)....778
FUEL INJECTION PUMP FOR RIGHT BANK....779
REMOVAL AND INSTALLATION (WHTHOUT GOVERNOR)....779
WATER PUMP....780
REMOVAL AND INSTALLATION....780
NOZZLE HOLDER....781
REMOVAL AND INSTALLATION....781
TURBOCHARGER....782
REMOVAL AND INSTALLATION....782
ENGINE FRONT SEAL....783
REMOVAL AND INSTALLATION....783
ENGINE REAR SEAL....785
REMOVAL AND INSTALLATION....785
CYLINDER HEAD....787
REMOVAL....787
INSTALLATION....791
RADIATOR....794
REMOVAL....794
INSTALLATION....797
ENGINE....798
REMOVAL....798
INSTALLATION....804
DAMPER....805
REMOVAL AND INSTALLATION....805
DISASSEMBLY....806
ASSEMBLY....808
TORQUE CONVERTER AND TRANSMISSION ASSEMBLY....812
REMOVAL....812
INSTALLATION....819
TORQUE CONVERTER....821
DISASSEMBLY....821
ASSEMBLY....825
TORQUE CONVERTER VALVE....830
DISASSEMBLY AND ASSEMBLY....830
TRANSMISSION ....831
DISASSEMBLY....831
ASSEMBLY....847
TRANSMISSION VALVE....864
REMOVAL AND INSTALLATION....864
DISASSEMBLY AND ASSEMBLY....865
TRANSFER....869
DISASSEMBLY....869
ASSEMBLY....877
PTO....887
DISASSEMBLY....887
ASSEMBLY....889
CENTER SUPPORT....892
REMOVAL....892
INSTALLATION....893
DISASSEMBLY....894
ASSEMBLY....896
DRIVE SHAFT....899
DISASSEMBLY....899
ASSEMBLY....901
FRONT AXLE....903
REMOVAL....903
INSTALLATION....905
REAR AXLE....906
REMOVAL....906
INSTALLATION....912
DIFFERENTIAL....913
REMOVAL....913
INSTALLATION....915
DISASSEMBLY....916
ASSEMBLY....920
FINAL DRIVE....926
DISASSEMBLY....926
ASSEMBLY....929
ORBIT-ROLL....932
REMOVAL....932
INSTALLATION....933
EMERGENCY STEERING PUMP....934
REMOVAL AND INSTALLATION....934
DIVERTER VALVE....935
REMOVAL AND INSTALLATION....935
DISASSEMBLY....936
ASSEMBLY....937
ACCUMULATOR CHARGE VALVE....939
REMOVAL AND INSTALLATION....939
DISASSEMBLY....940
ASSEMBLY....941
STEERING STOP VALVE....943
REMOVAL AND INSTALLATION....943
STEERING CYLINDER....944
REMOVAL....944
INSTALLATION....945
STEERING VALVE....946
REMOVAL....946
INSTALLATION....947
BRAKE VALVE....948
REMOVAL AND INSTALLATION....948
SLACK ADJUSTER....949
REMOVAL AND INSTALLATION....949
DISASSEMBLY....950
ASSEMBLY....951
BRAKE....952
REMOVAL AND INSTALLATION....952
DISASSEMBLY....953
ASSEMBLY....956
PARKING BRAKE CALIPERS....960
REMOVAL AND INSTALLATION....960
DISASSEMBLY....961
ASSEMBLY....963
PARKING BRAKE PAD....965
REMOVAL AND INSTALLATION....965
PARKING BRAKE SPRING CYLINDER....966
REMOVAL AND INSTALLATION....966
BRAKE OIL TANK....967
REMOVAL AND INSTALLATION....967
HYDRAULIC PUMP....968
REMOVAL....968
INSTALLATION....970
SERVO CYLINDER....971
REMOVAL AND INSTALLATION....971
HYDRAULIC TANK AND FILTER CASE ASSEMBLY....972
REMOVAL....972
INSTALLATION....973
PPC VALVE....974
REMOVAL....974
INSTALLATION....975
DISASSEMBLY AND ASSEMBLY....976
WORK EQUIPMENT CONTROL VALVE....977
REMOVAL....977
INSTALLATION....978
DISASSEMBLY....979
ASSEMBLY....981
CAB....983
REMOVAL....983
INSTALLATION....985
FLOOR FRAME....986
REMOVAL....986
INSTALLATION....988
CENTER HINGE PIN....989
REMOVAL....989
INSTALLATION....995
WORK EQUIPMENT....999
REMOVAL....999
INSTALLATION....1004
BOOM FRONT END BUSH....1005
REPLACEMENT....1005
BUCKET CYLINDER....1006
REMOVAL AND INSTALLATION....1006
LIFT CYLINDER....1007
REMOVAL....1007
INSTALLATION....1008
HYDRAULIC CYLINDER....1009
DISASSEMBLY....1009
ASSEMBLY....1011
AIR CONDITIONER UNIT....1013
REMOVAL....1013
INSTALLATION....1014
AIR CONDITIONER COMPRESSOR....1015
REMOVAL AND INSTALLATION....1015
RECEIVER TANK....1016
REMOVAL AND INSTALLATION....1016
AIR CONDITIONER CONDENSER....1017
REMOVAL AND INSTALLATION....1017
TRANSMISSION AND STEERING CONTROLLER....1018
REMOVAL AND INSTALLATION....1018
MAIN MONITOR....1019
REMOVAL....1019
INSTALLATION....1020
FUEL TANK....1021
REMOVAL....1021
INSTALLATION....1022
COUNTERWEIGHT....1023
REMOVAL AND INSTALLATION....1023
40 MAINTENANCE STANDARD....1024
ENGINE MOUNT....1025
TRANSMISSION MOUNT....1026
DAMPER....1027
TORQUE CONVERTER CHARGING, PPC AND BRAKE PUMP....1029
TORQUE CONVERTER....1031
TORQUE CONVERTER REGULATOR VALVE....1032
TRANSMISSION....1033
TRANSFER....1036
TRANSMISSION CONTROL VALVE....1038
DRIVE SHAFT....1043
CENTER SUPPORT....1044
DIFFERENTIAL....1045
FINAL DRIVE....1048
AXLE MOUNT....1050
CENTER HINGE PIN....1052
STEERING COLUMN....1054
STEERING DEMAND VALVE....1055
DIVERTER VALVE....1057
STEERING CYLINDER MOUNT....1058
EMERGENCY STEERING PUMP....1059
BRAKE VALVE....1060
SLACK ADJUSTER....1063
BRAKE....1064
PARKING BRAKE....1066
PPC VALVE....1068
PPC RELIEF VALVE....1070
STEERING PUMP....1071
SWITCH PUMP....1073
MAIN PISTON PUMP....1075
CONTROL PUMP (BAR025)....1077
COOLING FAN MOTOR....1078
MAIN CONTROL VALVE....1079
HYDRAULIC CYLINDER....1083
BUCKET LINKAGE ....1084
BUCKET POSITIONER AND BOOM KICK-OUT....1086
BRAKE COOLING PUMP....1087
90 OTHERS....1088
ELECTRIC CIRCUIT DIAGRAM [1/16]....1089
ELECTRIC CIRCUIT DIAGRAM [2/16]....1090
ELECTRIC CIRCUIT DIAGRAM [3/16]....1091
ELECTRIC CIRCUIT DIAGRAM [4/16]....1092
ELECTRIC CIRCUIT DIAGRAM [5/16]....1093
ELECTRIC CIRCUIT DIAGRAM [6/16]....1094
ELECTRIC CIRCUIT DIAGRAM [7/16]....1095
ELECTRIC CIRCUIT DIAGRAM [8/16]....1096
ELECTRIC CIRCUIT DIAGRAM [9/16]....1097
ELECTRIC CIRCUIT DIAGRAM [10/16]....1098
ELECTRIC CIRCUIT DIAGRAM [11/16]....1099
ELECTRIC CIRCUIT DIAGRAM [12/16]....1100
ELECTRIC CIRCUIT DIAGRAM [13/16]....1101
ELECTRIC CIRCUIT DIAGRAM [14/16]....1102
ELECTRIC CIRCUIT DIAGRAM [15/16]....1103
ELECTRIC CIRCUIT DIAGRAM [16/16]....1104
WITH ELECTRONIC GOVERNOR....1105
TROUBLESHOOTING OF ELECTRONIC GOVERNOR SYSTEM (G MODE)....1106
JUDGEMENT TABLE FOR ENGINE CONTROLLER AND ENGINE RELATED PARTS....1107
ACTION TAKEN BY CONTROLLER AND CONDITION OF MACHINE WHEN ABNORMALITY OCCURS....1109
ACTION TAKEN BY CONTROLLER AND CONDITIONS FOR RESETTING WHEN ABNORMALITY OCCURS....1117
POINTS TO REMEMBER WHEN CARRYING OUT TROUBLESHOOTING OF ENGINE CONTROLLER SYSTEM....1118
JUDGEMENT TABLE FOR ENGINE CONTROLLER....1120
G-1 [90] [OFF OR 10] ABNORMALITY IN POWER SOURCE SYSTEM....1121
G-2 [90] [11] ABNORMALITY IN CONTROLLER SYSTEM....1121
G-3 [90] [21] MISTAKEN CONNECTION OF CONNECTOR....1122
G-4 [90] [56] ABNORMALITY IN RIGHT BANK SOLENOID POWER SOURCE SYSTEM....1122
G-5 [90] [57] ABNORMALITY IN LEFT BANK SOLENOID POWER SOURCE SYSTEM....1122
G-6 [90] [58] ABNORMALITY IN BACK-UP POWER SOURCE SYSTEM....1123
G-7 [90] [59] ABNORMALITY IN SWITCH POWER SOURCE SYSTEM....1124
G-8 [91] [14] ABNORMALITY IN RIGHT BANK GOVERNOR SOLENOID SYSTEM....1125
G-9 [91] [15] ABNORMALITY IN LEFT BANK GOVERNOR SOLENOID SYSTEM....1126
G-10 [91] [16] ABNORMALITY IN RIGHT BANK GOVERNOR CUT RELAY SYSTEM....1127
G-11 [91] [17] ABNORMALITY IN LEFT BANK GOVERNOR CUT RELAY SYSTEM....1128
G-12 [91] [19] ABNORMALITY IN RIGHT BANK GOVERNOR SERVO SYSTEM....1129
G-13 [91] [1A] ABNORMALITY IN LEFT BANK GOVERNOR SERVO SYSTEM....1130
G-14 [91] [1d] ABNORMALITY IN RIGHT BANK PRE-STROKE SOLENOID SYSTEM....1131
G-15 [91] [1E] ABNORMALITY IN LEFT BANK PRE-STROKE SOLENOID SYSTEM....1132
G-16 [92] [12] ABNORMALITY IN RIGHT BANK RACK SENSOR SYSTEM....1133
G-17 [92] [13] ABNORMALITY IN LEFT BANK RACK SENSOR SYSTEM....1134
G-18 [92] [18] ABNORMALITY IN RACK SENSOR POWER SOURCE SYSTEM....1135
G-19 [93] [1b] ABNORMALITY IN ENGINE SPEED SENSOR A SYSTEM....1136
G-20 [94] [1c] ABNORMALITY IN ENGINE SPEED SENSOR B SYSTEM....1137
G-21 [93, 94] [1b, 1c] ABNORMALITY IN ENGINE SPEED SENSOR A, B SYSTEM....1138
G-22 [95] [40] ABNORMALITY IN ENGINE WATER TEMPERATURE SENSOR SYSTEM....1138
G-23 [97] [31] ABNORMALITY IN ACCELERATOR SENSOR SYSTEM....1139
G-24 [98] [18] ABNORMALITY IN MODEL SELECTION....1141
G-25 [99] [22] ENGINE OVERRUN....1142
G-26 ENGINE DOES NOT START....1142
G-27 ENGINE DOES NOT STOP....1146
ELECTRICAL CIRCUIT DIAGRAM (1/5)....1147
ELECTRICAL CIRCUIT DIAGRAM (2/5)....1148
ELECTRICAL CIRCUIT DIAGRAM (3/5)....1149
ELECTRICAL CIRCUIT DIAGRAM (4/5)....1150
ELECTRICAL CIRCUIT DIAGRAM (5/5)....1151
