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Komatsu WA900L-3 Avance Loader Wheel Loader Shop Manual 52001 and up – PDF DOWNLOAD
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Komatsu WA900L-3 Avance Loader Wheel Loader Shop Manual
Book Code: SEBM035704
MACHINE MODEL SERIAL NUMBER
WA900L-3 52001 and up
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Description
Komatsu WA900L-3 Avance Loader Wheel Loader Shop Manual
FILE DETAILS:
Komatsu WA900L-3 Avance Loader Wheel Loader Shop Manual
Brands: Komatsu
Equipment Type: Wheel Loader
Manuals Type: Shop Manual
Machine Model: WA900L-3 Avance Loader
Serial Number: 52001 and up
Book Code: SEBM035704
Language: English
Pages: 831
File Format: Portable Document Format (PDF)
DESCRIPTION:
Komatsu WA900L-3 Avance Loader Wheel Loader Shop Manual
FOREWORD:
GENERAL:
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 WA900L-3 Avance Loader Wheel Loader Shop Manual
COVER......................................................................................................................................................................................... 1 CONTENTS...................................................................................................................................................................................... 2 01 GENERAL.................................................................................................................................................................................... 29 GENERAL ASSEMBLY DRAWING.................................................................................................................................................................. 30 SPECIFICATIONS............................................................................................................................................................................ 31 WEIGHT TABLE.............................................................................................................................................................................. 34 LIST OF LUBRICANT AND WATER............................................................................................................................................................... 36 10 STRUCTURE AND FUNCTION .................................................................................................................................................................... 44 POWER TRAIN............................................................................................................................................................................... 45 POWER TRAIN SYSTEM........................................................................................................................................................................ 46 ENGINE CONTROL............................................................................................................................................................................ 47 RADIATOR AND COOLER....................................................................................................................................................................... 48 DAMPER.................................................................................................................................................................................... 50 TORQUE CONVERTER AND TRANSMISSION PIPING.................................................................................................................................................. 51 TRANSMISSION HYDRAULIC SYSTEM DIAGRAM..................................................................................................................................................... 52 TRANSMISSION HYDRAULIC CIRCUIT DIAGRAM.................................................................................................................................................... 53 TORQUE CONVERTER.......................................................................................................................................................................... 54 TRANSMISSION.............................................................................................................................................................................. 59 TRANSFER.................................................................................................................................................................................. 67 TRANSMISSION CONTROL VALVE................................................................................................................................................................ 68 TORQUE CONVERTER OIL COOLER............................................................................................................................................................... 84 DRIVE SHAFT............................................................................................................................................................................... 85 CENTER SUPPORT............................................................................................................................................................................ 86 AXLE...................................................................................................................................................................................... 87 DIFFERENTIAL.............................................................................................................................................................................. 89 FINAL DRIVE............................................................................................................................................................................... 92 CENTER HINGE PIN.......................................................................................................................................................................... 93 AXLE MOUNT................................................................................................................................................................................ 94 TIRE AND WHEEL............................................................................................................................................................................ 96 STEERING PIPING........................................................................................................................................................................... 97 JOYSTICK STEERING LINKAGE................................................................................................................................................................. 98 STEERING PUMP............................................................................................................................................................................. 99 SWITCH PUMP...............................................................................................................................................................................101 STEERING DEMAND VALVE.....................................................................................................................................................................109 EPC VALVE.................................................................................................................................................................................120 ROTARY VALVE..............................................................................................................................................................................121 TWO-WAY RESTRICTOR VALVE..................................................................................................................................................................123 DIVERTER VALVE............................................................................................................................................................................124 BRAKE PIPING..............................................................................................................................................................................128 BRAKE CIRCUIT DIAGRAM.....................................................................................................................................................................129 BRAKE VALVE...............................................................................................................................................................................131 CHARGE VALVE..............................................................................................................................................................................136 ACCUMULATOR (FOR BRAKE)...................................................................................................................................................................140 SLACK ADJUSTER............................................................................................................................................................................141 BRAKE.....................................................................................................................................................................................144 PARKING BRAKE.............................................................................................................................................................................145 SPRING CYLINDER...........................................................................................................................................................................147 PARKING BRAKE SOLENOID VALVE..............................................................................................................................................................148 HYDRAULIC PIPING..........................................................................................................................................................................149 WORK EQUIPMENT LEVER LINKAGE..............................................................................................................................................................152 HYDRAULIC TANK............................................................................................................................................................................153 MAIN PISTON PUMP..........................................................................................................................................................................156 ES VALVE (ENGINE SENSING VALVE)...........................................................................................................................................................164 SERVO VALVE...............................................................................................................................................................................166 PPC VALVE (PROPORTIONAL PRESSURE VALVE)...................................................................................................................................................169 PPC RELIEF VALVE..........................................................................................................................................................................173 ACCUMULATOR (FOR PPC VALVE)...............................................................................................................................................................174 MAIN CONTROL VALVE........................................................................................................................................................................175 LUBRICATION OF WORK EQUIPMENT.............................................................................................................................................................188 WORK EQUIPMENT LINKAGE....................................................................................................................................................................191 BUCKET POSITIONER AND BOOM KICK-OUT.......................................................................................................................................................193 OPERATION OF PROXIMITY SWITCH.............................................................................................................................................................195 CRB AND ROPS CANOPY.......................................................................................................................................................................199 AIR CONDITIONER...........................................................................................................................................................................200 MACHINE MONITOR SYSTEM....................................................................................................................................................................204 MAIN MONITOR..............................................................................................................................................................................205 MAINTENANCE MONITOR.......................................................................................................................................................................209 ENGINE STARTING CIRCUIT...................................................................................................................................................................212 ENGINE STOP CIRCUIT.......................................................................................................................................................................215 PREHEATING CIRCUIT........................................................................................................................................................................216 ELECTRICAL TRANSMISSION CONTROL...........................................................................................................................................................217 KICK-DOWN, HOLD SWITCH....................................................................................................................................................................218 AUTOMATIC TRANSMISSION (ATM) SYSTEM.......................................................................................................................................................219 AJSS (ADVANCED JOYSTICK STEERING SYSTEM)..................................................................................................................................................229 ELECTRIC PARKING BRAKE CONTROL............................................................................................................................................................234 20 TESTING AND ADJUSTING......................................................................................................................................................................243 STANDARD VALVE TABLE FOR ENGINE...........................................................................................................................................................244 STANDARD VALVE TABLE FOR CHASSIS..........................................................................................................................................................245 STANDARD VALVE TABLE FOR ELECTRICAL PARTS.................................................................................................................................................249 TESTING AND ADJUSTING.....................................................................................................................................................................259 TABLE OF TOOLS FOR TESTING, ADJUSTING AND TROUBLESHOOTING.............................................................................................................................260 MEASURING ENGINE SPEED................................................................................................................................................................262 MEASURING EXHAUST GAS COLOR...........................................................................................................................................................263 ADJUSTING VALVE CLEARANCE.............................................................................................................................................................264 MEASURING COMPRESSION PRESSURE........................................................................................................................................................264 MEASURING BLOW-BY PRESSURE............................................................................................................................................................264 TESTING AND ADJUSTING FUEL INJECTION TIMING...........................................................................................................................................264 MEASURING ENGINE OIL PRESSURE.........................................................................................................................................................264 MEASURING EXHAUST TEMPERATURE.........................................................................................................................................................264 MEASURING AIR SUPPLY PRESSURE (BOOST PRESSURE)........................................................................................................................................264 TESTING AND ADJUSTING ALTERNATOR BELT TENSION.........................................................................................................................................265 TESTING AND ADJUSTING BELT TENSION FOR AIR CONDITIONER COMPRESSOR.....................................................................................................................266 MEASURING ACCELERATOR PEDAL...........................................................................................................................................................267 TESTING AND ADJUSTING TORQUE CONVERTER AND TRANSMISSION OIL PRESSURE..................................................................................................................268 PROCEDURE FOR OPERATING EMERGENCY STEERING SPOOL WHEN TRANSMISSION VALVE FAILS........................................................................................................270 TESTING AND ADJUSTING STEERING OIL PRESSURE...........................................................................................................................................272 TESTING AND ADJUSTING EMERGENCY STEERING OIL PRESSURE.................................................................................................................................273 BLEEDING AIR FROM STEERING CIRCUIT....................................................................................................................................................275 TESTING AND ADJUSTING STEERING STOPPER BOLT...........................................................................................................................................276 TESTING AND ADJUSTING STEERING LEVER ANGLE SENSOR AND FRAME ANGLE SENSOR..............................................................................................................277 TESTING WHEEL BRAKE PERFORMANCE.......................................................................................................................................................278 TESTING WHEEL BRAKE OIL PRESSURE DROP.................................................................................................................................................279 MEASURING WEAR OF WHEEL BRAKE DISC....................................................................................................................................................281 TESTING AND ADJUSTING ACCUMULATOR CHARGE CUT-IN AND CUT-OUT PRESSURE..................................................................................................................282 BLEEDING AIR FROM WHEEL BRAKE CIRCUIT.................................................................................................................................................284 TESTING PARKING BRAKE PERFORMANCE.....................................................................................................................................................285 MEASURING PARKING BRAKE SOLENOID OUTPUT PRESSURE......................................................................................................................................286 CHECKING AND ADJUSTING PARKING BRAKE PAD..............................................................................................................................................287 TESTING AND ADJUSTING PPC PRESSURE....................................................................................................................................................289 ADJUSTING PPC VALVE LINKAGE...........................................................................................................................................................290 TESTING AND ADJUSTING WORK EQUIPMENT HYDRAULIC PRESSURE...............................................................................................................................291 BLEEDING AIR FROM PISTON PUMP.........................................................................................................................................................293 BLEEDING AIR FROM WORK EQUIPMENT CIRCUIT..............................................................................................................................................294 ADJUSTING WORK EQUIPMENT LEVER LINKAGE................................................................................................................................................295 RELEASING REMAINING PRESSURE IN HYDRAULIC CIRCUIT ....................................................................................................................................296 TESTING AND ADJUSTING BUCKET PROXIMITY SWITCH.........................................................................................................................................297 TESTING AND ADJUSTING BOOM PROXIMITY SWITCH...........................................................................................................................................297 TESTING PROXIMITY ACTUATION PILOT LAMP................................................................................................................................................298 ADJUSTING SPEEDOMETER MODULE OF MAIN MONITOR..........................................................................................................................................299 TROUBLESHOOTING...........................................................................................................................................................................300 POINTS TO REMEMBER WHEN TROUBLESHOOTING...............................................................................................................................................301 SEQUENCE OF EVENTS IN TROUBLESHOOTING.................................................................................................................................................302 POINTS TO REMEMBER WHEN CARRYING OUT MAINTENANCE......................................................................................................................................303 CHECKS BEFORE TROUBLESHOOTING.........................................................................................................................................................311 TYPES AND LOCATIONS OF CONNECTORS.....................................................................................................................................................312 CONNECTOR LOCATION STEREOGRAM.........................................................................................................................................................318 WIRING TABLE FOR CONNECTOR PIN NUMBERS................................................................................................................................................324 T-ADAPTER BOX AND T-ADAPTER TABLE.....................................................................................................................................................357 EXPLANATION OF FUNCTIONS OF ELECTRIC CONTROL MECHANISM................................................................................................................................360 METHOD OF DISPLAYING ACTION CODE AND FAILURE CODE.....................................................................................................................................364 CHART OF ACTION CODES AND FAILURE CODES, AND RE-ENACTION..............................................................................................................................366 TRANSMISSION CONTROLLER LED DISPLAY...................................................................................................................................................368 METHOD OF USING JUDGEMENT TABLE.......................................................................................................................................................369 METHOD OF USING TROUBLESHOOTING CHARTS................................................................................................................................................370 METHOD OF USING MATRIX TROUBLESHOOTING TABLES.........................................................................................................................................372 TROUBLESHOOTING OF ENGINE (S MODE)....................................................................................................................................................374 METHOD OF USING TROUBLESHOOTING CHARTS............................................................................................................................................375 S-1 STARTING PERFORMANCE IS POOR (STARTING ALWAYS TAKES TIME).....................................................................................................................379 S-2 ENGINE DOES NOT START.........................................................................................................................................................380 (1) ENGINE DOES NOT TURN......................................................................................................................................................380 (2) ENGINE TURNS BUT NO EXHAUST GAS COMES UOT (FUEL IS NOT BEING INJECTED) (INCLUDING CASES WITH V-TYPE ENGINE WHERE THERE IS NO FUEL INJECTION FOR THE BANK ON ONE SIDE).....381 (3) EXHAUST GAS COMES OUT BUT ENGINE DOES NOT START (FUEL IS BEING INJECTED)..................................................................................................382 S-3 ENGINE DOES NOT PICK UP SMOOTHLY (FOLLOW-UP IS POOR)..........................................................................................................................383 S-4 ENGINE STOPS DURING OPERATIONS (FOR V TYPE ENGINE, INCLUDING CASES WHERE ONE BANK STOPS)......................................................................................384 S-5 ENGINE DOES NOT ROTATE SMOOTHLY (HUNTING).....................................................................................................................................385 S-6 ENGINE LACKS UOTPUT (NO POWER) (WITH V-TYPE ENGINE, FOR CASES WHERE THERE IS INJECTION FOR ONLY BANK,GO TO TROUBLESHOOTING S-2-(2)OR S-4).....................................386 S-7 EXHAUST GAS IS BLACK (INCOMPLETE COMBUSTION)..................................................................................................................................387 S-8 OIL CONSUMPTION IS EXCESSIVE (OR EXHAUST GAS IS BLUE).........................................................................................................................388 S-9 OIL BECOMES CONTAMINATED QUICKLY..............................................................................................................................................389 S-10 FUEL CONSUMPTION IS EXCESSIVE................................................................................................................................................390 S-11 OIL IS IN COOLING WATER, OR WATER SPURTS BACK, OR WATER LEVEL GOES DOWN......................................................................................................391 S-12 OIL PRESSURE LAMP LIGHTS UP (DROP IN OIL PRESSURE)...........................................................................................................................392 S-13 OIL LEVEL RISES..............................................................................................................................................................393 S-14 WATER TEMPERATURE BECOMES TOO HIGH (OVERHEATING).............................................................................................................................394 S-15 ABNORMAL NOISE IS MADE.......................................................................................................................................................395 S-16 VIBRATION IS EXCESSIVE.......................................................................................................................................................396 TROUBLESHOOTING OF TRANSMISSION CONTROL SYSTEM (T MODE)...............................................................................................................................397 JUDGEMENT TABLE FOR TRANSMISSION CONTROL SYSTEM RELATED PARTS.....................................................................................................................398 ACTION TAKEN BY CONTROLLER WHEN ABNORMALITY OCCURS AND PROBLEMS ON MACHINE........................................................................................................399 ELECTRICAL CIRCUIT DIAGRAM FOR TRANSMISSION CONTROL SYSTEM........................................................................................................................403 T-1 FAILURE CODE [10] (SHORT CIRCUIT, DISCONNECTION, SHORT CIRCUIT WITH POWER SOURCE IN BACKUP LAMP RELAY) IS DISPLAYED...........................................................405 T-2 FAILURE CODE [12] (SHORT CIRCUIT, DISCONNECTION, SHORT CIRCUIT WITH POWER SOURCE IN F SOLENOID) IS DISPLAYED..................................................................406 T-3 FAILURE CODE [13] (SHORT CIRCUIT, DISCONNECTION, SHORT CIRCUIT WITH POWER SOURCE IN R SOLENOID) IS DISPLAYED..................................................................407 T-4 FAILURE CODE [14] (SHORT CIRCUIT, DISCONNECTION, SHORT CIRCUIT WITH POWER SOURCE IN 1ST SOLENOID) IS DISPLAYED................................................................408 T-5 FAILURE CODE [15] (SHORT CIRCUIT, DISCONNECTION, SHORT CIRCUIT WITH POWER SOURCE IN 2ND SOLENOID) IS DISPLAYED................................................................409 T-6 FAILURE CODE [16] (SHORT CIRCUIT, DISCONNECTION, SHORT CIRCUIT WITH POWER SOURCE IN 3RD SOLENOID) IS DISPLAYED................................................................410 T-7 FAILURE CODE [20] (SHORT CIRCUIT OR DISCONNECTION IN JOYSTICK LEVEL SWITCH SYSTEM) IS DISPLAYED...............................................................................411 T-8 FAILURE CODE [21] (SHORT CIRCUIT OR DISCONNECTION IN JOYSTICK SHIFT-UP/SHIFT-DOWN SWITCH SYSTEM) IS DISPLAYED.................................................................412 T-9 FAILURE CODE [22] (DISCONNECTION IN TRAVEL SPEED SENSOR) IS DISPLAYED.........................................................................................................413 T-10 FAILURE CODE [23] (SHORT CIRCUIT, DISCONNECTION IN ENGINE SPEED SENSOR SYSTEM) IS DISPLAYED..................................................................................414 T-11 KICKDOWN SWITCH SIGNAL SYSTEM AND HOLD SWITCH SIGNAL SYSTEM .................................................................................................................415 T-12 TRANSMISSION CUT-OFF SIGNAL SYSTEM...........................................................................................................................................416 T-13 NEUTRALIZER SIGNAL SYSTEM....................................................................................................................................................417 T-14 BUZZER SIGNAL SYSTEM.........................................................................................................................................................418 T-15 NETWORK SYSTEM...............................................................................................................................................................419 T-16 TRANSMISSION CONTROLLER POWER SOURCE SYSTEM..................................................................................................................................420 T-17 SHORT CIRCUIT IN TRAVEL SPEED SENSOR SYSTEM .................................................................................................................................421 T-18 ABNORMALITY IN MACHINE SELECTION WIRING HARNESS..............................................................................................................................422 TROUBLESHOOTING OF MAIN MONITOR SYSTEM (M MODE).......................................................................................................................................423 TROUBLE DATA DISPLAY..............................................................................................................................................................425 ELECTRICAL CIRCUIT DIAGRAM FOR MAIN MONITOR SYSTEM................................................................................................................................427 M-1 MAIN MONITOR DOES NOT WORK....................................................................................................................................................429 M-2 WHEN STARTING SWITCH IS TURNED ON (WITHIN 3 SECONDS) AND ENGINE IS STARTED IMMEDIATELY, ALL LAMPS STAY LIGHTED UP.............................................................430 M-3 SPEEDOMETER DISPLAY DOES NOT WORK PROPERLY....................................................................................................................................431 M-4 ABNORMALITY IN SHIFT INDICATOR................................................................................................................................................432 a) DISPLAYS N EVEN WHEN DIRECTIONAL SWITCH IS AT F............................................................................................................................432 b) DISPLAYS N EVEN WHEN DIRECTIONAL SWITCH IS AT R............................................................................................................................432 c) DOES NOT DISPLAY N EVEN WHEN DIRECTIONAL SWITCH IS AT N (DISPLAY 1ST-3RD)..................................................................................................432 M-5 TURN SIGNAL DISPLAY DOES NOT LIGHT UP.........................................................................................................................................434 a) L.H. TURN SIGNAL DISPLAY DOES NOT LIGHT UP.................................................................................................................................434 b) R.H. TURN SIGNAL DISPLAY DOES NOT LIGHT UP.................................................................................................................................434 M-6 ABNORMALITY IN PARKING DISPLAY................................................................................................................................................436 a) PARKING LAMP DISPLAY DOES NOT LIGHT UP.....................................................................................................................................436 b) PARKING LAMP DISPLAY STAYS LIGHT UP........................................................................................................................................436 M-7 NIGHT LIGHTING DOES NOT LIGHT UP..............................................................................................................................................437 M-8 ABNORMALITY IN FRONT WORKING LAMP.............................................................................................................................................439 a) NEITHER MONITOR DISPLAY NOR FRONT WORKING LAMP LIGHT UP....................................................................................................................439 b) WORKING LAMP LIGHTS UP BUT MONITOR DISPLAY DOES NOT LIGHT UP...............................................................................................................439 c) MONITOR DISPLAY LIGHTS UP BUT FRONT WORKING LAMP DOES NOT LIGHT UP ........................................................................................................439 M-9 ABNORMALITY IN REAR WORKING LAMP..............................................................................................................................................441 a) NEITHER MONITOR DISPLAY NOR REAR WORKING LAMP LIGHT UP ....................................................................................................................441 b) REAR WORKING LAMP LIGHTS UP BUT MONITOR DISPLAY DOES NOT LIGHT UP .........................................................................................................441 c) MONITOR DISPLAY LIGHTS UP BUT REAR WORKING LAMP DOES NOT LIGHT UP..........................................................................................................441 M-10 ABNORMALITY IN TRANSMISSION CUT-OFF..........................................................................................................................................443 a) WHEN MONITOR SWITCH (TRANSMISSION CUT-OFF SWITCH) IS PRESSED, CUT-OFF FUNCTION IS NOT SWITCHED AND DISPLAY DOES NOT CHANGE.................................................443 b) WHEN MONITOR SWITCH (TRANSMISSION CUT-OFF SWITCH) IS OFF, MONITOR DISPLAY GOES OUT BUT CUT-OFF FUNCTION IS ACTUATED WHEN PEDAL IS DEPRESSED................................443 c) WHEN MONITOR DISPLAY IS TURNED OFF (TRANSMISSION CUT-OFF SWITCH TURNED OFF), CUT-OFF FUNCTION IS ALWAYS ACTUATED...........................................................443 d) CUT-OFF FUNCTION IS ALWAYS ACTUATED REGARDLESS OF MONITOR DISPLAY (TRANSMISSION CUT-OFF SWITCH ON OR OFF)..................................................................443 e) MONITOR DISPLAY LIGHTS UP (TRANSMISSION CUT-OFF SWITCH TURNED ON), BUT CUT-OFF FUNCTION IS NOT ACTUATED....................................................................444 M-11 ABNORMALITY IN LOW IDLE SELECTION............................................................................................................................................445 a) WHEN MONITOR SWITCH (LOW IDLE SELECTOR SWITCH) IS TURNED ON, THE LOW IDLE SPEED DOES NOT RISE AND DISPLAY DOES NOT CHANGE .................................................445 b) WHEN MONITOR SWITCH (LOW IDLE SELECTOR SWITCH) IS TURNED ON, THE MONITOR LIGHTS UP BUT THE LOW IDLE SPEED DOES NOT RISE....................................................445 c) WHEN MONITOR SWITCH (LOW IDLE SELECTOR SWITCH) IS TURNED OFF, THE MONITOR GOES OFF BUT THE LOW IDLE SPEED DOES NOT LOWER...................................................446 M-12 ABNORMALITY IN EMERGENCY STEERING NORMAL DISPLAY.............................................................................................................................447 M-13 ABNORMALITY IN EMERGENCY STEERING ACTUATION DISPLAY..........................................................................................................................448 a) EMERGENCY STEERING ACTUATION DISPLAY DOES NOT LIGHT UP.....................................................................................................................448 b) EMERGENCY STEERING ACTUATION DISPLAY STAYS LIGHTED UP......................................................................................................................448 M-14 ABNORMALITY IN PARKING BRAKE DRAGGING WARNING................................................................................................................................449 a) WHEN PARKING BRAKE IS APPLIED, BUZZER SOUNDS (INTERMITTENTLY) AND CAUTION LAMP FLASHES EVEN WHEN DIRECTIONAL SWITCH IS AT N................................................449 b) WHEN PARKING BRAKE IS APPLIED, BUZZER DOES NOT SOUND AND CAUTION LAMP DOES NOT LIGHT UP EVEN WHEN DIRECTIONAL SWITCH IS AT POSITION OTHER THAN N...........................449 M-15 WHEN PARKING BRAKE DRAGGING WARNING IS GIVEN, BUZZER AND CAUTION LAMP ARE ACTUATED CONTINUOUSLY, OR THEY ARE NOT ACTUATED....................................................450 a) ACTUATED CONTINUOUSLY......................................................................................................................................................450 b) NOT ACTUATED...............................................................................................................................................................450 M-16 ABNORMALITY IN BUZZER........................................................................................................................................................451 a) BUZZER DOES NOT SOUND WHEN STARTING SWITCH IS AT ON (FOR 3 SECONDS) (DURING SELF-CHECK)....................................................................................451 b) BUZZER ALWAYS SOUNDS.......................................................................................................................................................451 M-17 CONDITION OF MONITOR SWITCHES IS NOT STORED IN MEMORY........................................................................................................................452 M-18 ABNORMALITY IN FAILURE DISPLAY MODE..........................................................................................................................................453 a) DOES NOT ENTER FAILURE DISPLAY MODE........................................................................................................................................453 b) COUNT FOR TIME ELAPSED SINCE FAILURE DISPLAY MODE DOES NOT ADVANCE.........................................................................................................453 M-19 BUZZER IS NOT MADE TO SOUND BY TRANSMISSION & JOYSTICK STEERING CONTROLLER...................................................................................................454 M-20 ABNORMALITY IN AUTO-GREASING SYSTEM..........................................................................................................................................455 a) FORCED GREASING CANNOT BE CARRIED OUT......................................................................................................................................455 b) MONITOR DISPLAY FLASHES RAPIDLY (2 TIMES/SEC)..............................................................................................................................455 c) WHEN NO MORE GREASE REMAINS, MONITOR DISPLAY FLASHES RAPIDLY (2 TIMES/SEC).................................................................................................455 d) MONITOR DISPLAY FLASHES SLOWLY (1 TIME/SEC) CONFIRM THAT GREASE IS NOT EMPTY...............................................................................................456 e) MONITOR DISPLAY GOES OUT...................................................................................................................................................456 M-21 FAILURE CODE IS NOT SENT TO MAIN MONITOR (ABNORMALITY IN NETWORK)............................................................................................................457 TROUBLESHOOTING OF MAINTENANCE MONITOR SYSTEM (K MODE)................................................................................................................................458 ELECTRICAL CIRCUIT DIAGRAM FOR MAINTENANCE MONITOR SYSTEM.........................................................................................................................459 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..........................................461 a) NO LAMPS ON MAINTENANCE MONITOR LIGHT UP...................................................................................................................................461 b) SOME LAMPS DO NOT LIGHT UP.................................................................................................................................................461 K-2 WHEN STARTING SWITCH IS TURNED ON,ALL LAMPS ON MAINTENANCE MONITOR LIGHT UP BUT DO NOT GO OUT (EVEN AFTER 3 SECONDS)..........................................................462 K-3 WHEN ENGINE IS STARTED IMMEDIATELY AFTER STARTING SWITCH IS TURNED ON (WITHIN 3 SECONDS), NO LAMPS ON MAINTENANCE MONITOR GO OUT..............................................463 K-4 WHEN STARTING SWITCH IS TURNED ON (ENGINE STOPPED), CHECK ITEMS FLASH.........................................................................................................465 a) ENGINE OIL LEVEL DISPLAY FLASHES...........................................................................................................................................465 b) ENGINE WATER LEVEL DISPLAY FLASHES.........................................................................................................................................466 K-5 WHEN STARTING SWITCH IS TURNED ON (ENGINE STARTED), CAUTION ITEMS FLASH.......................................................................................................467 a) ENGINE OIL PRESSURE DISPLAY FLASHES........................................................................................................................................467 b) BATTERY CHARGE LEVEL DISPLAY FLASHES.......................................................................................................................................468 c) BRAKE OIL PRESSURE DISPLAY FLASHES (CHECK THAT THE BRAKE OIL PRESSURE IS CORRECT)..........................................................................................469 d) AIR CLEANER (R.H.) CLOGGING DISPLAY FLASHES (CHECK THAT THE AIR CLEANER (R.H.) IS NOT CLOGGED).............................................................................471 e) AIR CLEANER (L.H.) CLOGGING DISPLAY FLASHES (CHECK THAT THE AIR CLEANER (L.H.) IS NOT CLOGGED).............................................................................472 f) TRANSMISSION OIL FILTER DISPLAY FLASHES (THE TRANSMISSION OIL FILTER MUST NOT BE CLOGGED)..................................................................................473 K-6 CAUTION ITEMS ARE FLASHING BUT BUZZER DOES NOT SOUND..........................................................................................................................474 K-7 THERE IS NO ABNORMALITY IN MONITOR DISPLAY BUT CAUTION BUZZER SOUNDS..........................................................................................................475 K-8 CAUTION ITEMS ARE FLASHING BUT NEITHER CHECK LAMP NOR CAUTION LAMP FLASHES....................................................................................................476 a) CHECK LAMP.................................................................................................................................................................476 b) CAUTION LAMP...............................................................................................................................................................476 K-9 THERE IS NO ABNORMALITY IN MAINTENANCE MONITOR DISPLAY BUT CHECK LAMP OR CAUTION LAMP LIGHTS UP ..............................................................................477 a) CHECK LAMP.................................................................................................................................................................477 b) CAUTION LAMP...............................................................................................................................................................477 K-10 ONLY NIGHT LIGHTING OF MAINTENANCE MONITOR DOES NOT LIGHT UP WHEN LIGHTING SWITCH IS TURNED ON...............................................................................478 K-11 NIGHT LIGHTING LIGHTS UP EVEN WHEN LIGHTING SWITCH IS TURNED OFF.............................................................................................................479 K-12 SERVICE METER DOES NOT WORK..................................................................................................................................................480 K-13 SERVICE METER IS RUNNING EVEN WHEN ENGINE IS STOPPED.........................................................................................................................480 K-14 ABNORMALITY IN GAUGE DISPLAY.................................................................................................................................................482 a) ABNORMALITY IN FUEL GAUGE..................................................................................................................................................482 b) ABNORMALITY IN ENGINE WATER TEMPERATURE GAUGE..............................................................................................................................483 c) ABNORMALITY IN TORQUE CONVERTER OIL TEMPERATURE GAUGE......................................................................................................................484 TROUBLESHOOTING OF ELECTRICAL SYSTEM (E MODE).........................................................................................................................................485 ELECTRICAL CIRCUIT DIAGRAM FOR POWER SUPPLY, ENGINE STARTING, ENGINE STOPPING AND PREHEATING......................................................................................486 ELECTRICAL CIRCUIT DIAGRAM FOR PARKING BRAKE......................................................................................................................................488 ELECTRICAL CIRCUIT DIAGRAM FOR BOOM KICK-OUT AND BUCKET POSITIONER................................................................................................................489 E-1 ENGINE DOES NOT START.........................................................................................................................................................490 a) STARTING MOTOR DOES NOT TURN...............................................................................................................................................490 b) STARTING MOTOR TURNS.......................................................................................................................................................494 E-2 ENGINE DOES NOT STOP..........................................................................................................................................................495 E-3 ABNORMALITY IN PREHEATING SYSTEM..............................................................................................................................................498 a) DOES NOT CARRY OUT PREHEATING..............................................................................................................................................498 b) ONLY MONITOR DISPLAY LIGHTS UP ............................................................................................................................................498 c) MONITOR DISPLAY DOES NOT LIGHT UP WHEN PREHEATING IS COMPLETED.............................................................................................................499 d) MONITOR DISPLAY KEEPS LIGHTING UP WHEN PREHEATING IS NOT COMPLETED.........................................................................................................499 E-4 PARKING BRAKE DOES NOT HAVE EFFECT............................................................................................................................................501 a) PARKING BRAKE HAS NO EFFECT WHEN PARKING BRAKE SWITCH IS TURNED ON.........................................................................................................501 b) PARKING BRAKE HAS NO EFFECT WHEN BRAKE PRESSURE (ACCUMULATOR PRESSURE) DROPS (DOES NOT WORK AS EMERGENCY BRAKE)............................................................501 E-5 PARKING BRAKE IS APPLIED WHEN MACHINE IS TRAVELING............................................................................................................................502 E-6 PARKING BRAKE IS RELEASED WHEN STARTING SWITCH IS TURNDED ON..................................................................................................................504 E-7 TRANSMISSION DOES NOT CHANGE TO NEUTRAL WHEN PARKING BRAKE IS APPLIED (BUT PARKING BRAKE WORKS NORMALLY)......................................................................504 E-8 KICK-DOWN SWITCH DOES NOT WORK................................................................................................................................................506 a) KICK-DOWN SWITCH DOES NOT WORK EVEN THOUGH GEAR SHIFT WORKS NORMALLY.......................................................................................................506 b) KICK-DOWN CANNOT BE CANCELED...............................................................................................................................................507 E-9 BOOM KICK-OUT DOES NOT WORK...................................................................................................................................................508 E-10 ABNORMALITY IN BUCKET POSITIONER FUNCTION....................................................................................................................................511 E-11 ABNORMALITY IN LIGHTING UP OF FRONT WORKING LAMP.............................................................................................................................514 E-12 ABNORMALITY IN LIGHTING UP OF REAR WORKING LAMP .............................................................................................................................514 E-13 ABNORMALITY IN TRANSMISSION CUT-OFF..........................................................................................................................................514 E-14 ABNORMALITY IN LOW IDLING SELECTION..........................................................................................................................................514 E-15 ABNORMALITY IN PARKING BRAKE DRAGGING WARNING ...............................................................................................................................514 E-16 ABNORMALITY IN BUZZER .......................................................................................................................................................514 TROUBLESHOOTING OF HYDRAULIC AND MECHANICAL SYSTEM (H MODE)...........................................................................................................................515 H-1 MACHINE DOES NOT MOVE.........................................................................................................................................................516 H-2 MACHINE LACKS POWER OR SPEED (EVERY SPEED RANGE)..............................................................................................................................517 H-3 EXCESSIVE TIME LAG WHEN STARTING MACHINE OR SHIFTING GEAR.....................................................................................................................518 H-4 TORQUE CONVERTER OIL TEMPERATURE IS HIGH .....................................................................................................................................519 H-5 STEERING DOES NOT TURN........................................................................................................................................................520 H-6 TURNING,RESPONSE OF STEERING IS POOR..........................................................................................................................................521 H-7 JOYSTICK LEVEL IS HEAVY.......................................................................................................................................................522 H-8 STEERING WHEEL SHAKES OR JERKS................................................................................................................................................523 H-9 MINIMUM TURNING RADII TO RIGHT AND LEFT ARE DIFFERENT.........................................................................................................................524 H-10 WHEEL BRAKES DO NOT WORK OR BRAKING EFFECT IS POOR...........................................................................................................................525 H-11 WHEEL BRAKES ARE NOT RELEASED OR BRAKES DRAG.................................................................................................................................526 H-12 BOOM DOES NOT RISE...........................................................................................................................................................527 H-13 BOOM MOVES SLOWLY OR DOES NOT HAVE SUFFICIENT LIFTING POWER..................................................................................................................528 H-14 WHEN RAISING BOOM,BECOMES SLOW AT CERTAIN HEIGHT.............................................................................................................................529 H-15 BOOM CYLINDER CANNOT HOLD DOWN BUCKET........................................................................................................................................529 H-16 BOOM HAS LARGE AMOUNT OF HYDRAULIC DRIFT.....................................................................................................................................529 H-17 BOOM FLUCTUATES WHILE WORKING ...............................................................................................................................................530 H-18 BOOM DROPS MOMENTARILY WHEN LEVER IS OPERATED FROM HOLD TO RAISE.............................................................................................................530 H-19 BUCKET DOES NOT TILT BACK....................................................................................................................................................531 H-20 BUCKET MOVES SLOWLY OR HAS INSUFFICIENT TILT BACK POWER......................................................................................................................532 H-21 BUCKET MOVEMENT BECOMES SLOW DURING TILT BACK................................................................................................................................533 H-22 BUCKET CYLINDER CANNOT HOLD DOWN BUCKET......................................................................................................................................533 H-23 BUCKET HAS LARGE AMOUNT OF HYDRAULIC DRIFT...................................................................................................................................533 H-24 BUCKET FLUCTUATES WHILE TRAVELING UNDER LOAD (WORK EQUIPMENT VALVE “HOLD")...................................................................................................534 H-25 BUCKET DUMPS MOMENTARILY WHEN LEVER IS OPERATED FROM HOLD TO TILT............................................................................................................534 H-26 BOOM AND BUCKET LEVERS DO NOT MOVE SMOOTHLY..................................................................................................................................535 TROUBLESHOOTING OF AJSS (ADVANCED JOYSTICK STEERING SYSTEM) CONTROL SYSTEM (A MODE)...................................................................................................536 JUDGEMENT TABLE FOR AJSS CONTROL SYSTEM...........................................................................................................................................537 OPERATIONS OF CONTROLLER AGAINST ABNORMALITY AND CONDITIONS OF MACHINE CAUSED BY ABNORMALITY .....................................................................................538 ELECTRIC CIRCUIT DIAGRAM FOR AJSS CONTROL.........................................................................................................................................542 A-1 FAILURE CODE [56] (DISCONNECTION OR SHORT CIRCUIT WITH CHASSIS GROUND IN CAUTION BUZZER RELAY SYSTEM) IS DISPLAYED............................................................544 A-2 FAILURE CODE [57] (DISCONNECTION OR SHORT CIRCUIT WITH CHASSIS GROUND IN STEERING LEVER ANGLE SENSOR SYSTEM) IS DISPLAYED.....................................................545 A-3 FAILURE CODE [58] (DEVIATION OF STEERING LEVER ANGEL SENSOR AND FRAME ANGLE SENSOR SIGNALS) IS DISPLAYED......................................................................546 A-4 FAILURE CODE [59] (DISCONNECTION OR SHORT CIRCUIT WITH CHASSIS GROUND IN FRAME ANGLE SENSOR SYSTEM) IS DISPLAYED..............................................................547 A-5 FAILURE CODE [60] (DISCONNECTION OR SHORT CIRCUIT WITH CHASSIS GROUND IN STEERING LEVER LOCK PRESSURE SWITCH SYSTEM) IS DISPLAYED.............................................548 A-6 FAILURE CODE [62] (DISCONNECTION OR SHORT CIRCUIT WITH CHASSIS GROUND IN STEERING NEUTRAL INTERLOCK RELAY SYSTEM) IS DISPLAYED................................................549 A-7 FAILURE CODE [63] (DISCONNECTION,SHORT CIRCUIT WITH CHASSIS GROUND, OR SHORT CIRCUIT WITH POWER SOURCE IN STEERING MAIN PRESSURE CONTROL EPC SOLENOID SYSTEM) IS DISPLAYED....550 A-8 STEERING SPEEDS IN BOTH DIRECTIONS ARE DIFFERENT..............................................................................................................................551 A-9 ABNORMALITY IN CONSOLE SWITCH (ADJUSTMENT OF STEERING LEVER ANGLE SENSOR AND FRAME ANGLE SENSOR IS IMPOSSIBLE)................................................................552 A-10 ABNORMALITY IN POWER SOURCE AND VOLTAGE......................................................................................................................................553 30 DISASSEMBLY AND ASSEMBLY...................................................................................................................................................................554 METHOD OF USING MANUAL....................................................................................................................................................................556 STANDARD TIGHTENING TORQUE TABLE..........................................................................................................................................................558 PRECAUTIONS WHEN CARRYING OUT OPERATION...................................................................................................................................................562 METHOD OF DISASSEMBLING AND CONNECTING PUSH-PULL TYPE COUPLER.............................................................................................................................565 COATING MATERIALS LIST....................................................................................................................................................................568 SPECIAL TOOL LIST.........................................................................................................................................................................572 SKETCHES OF SPECIAL TOOLS.................................................................................................................................................................578 ENGINE RELATED PARTS......................................................................................................................................................................586 STARTING MOTOR........................................................................................................................................................................586 ALTERNATOR............................................................................................................................................................................586 ENGINE OIL COOLER.....................................................................................................................................................................586 FUEL INJECTION PUMP FOR LEFT BANK.....................................................................................................................................................586 FUEL INJECTION PUMP FOR RIGHT BANK....................................................................................................................................................586 WATER PUMP............................................................................................................................................................................586 NOZZELE HODLER........................................................................................................................................................................586 TURBOCHARGER..........................................................................................................................................................................586 ENGINE FRONT SEAL.....................................................................................................................................................................586 ENGINE REAR SEAL......................................................................................................................................................................586 CYLINDER HEAD.........................................................................................................................................................................586 REMOVAL AND INSTALLATION OF RADIATOR......................................................................................................................................................587 REMOVAL AND INSTALLATION OF ENGINE........................................................................................................................................................590 REMOVAL AND INSTALLATION OF DAMPER........................................................................................................................................................595 DISASSEMBLY AND ASSEMBLY OF DAMPER........................................................................................................................................................596 REMOVAL AND INSTALLATION OF TORQUE CONVERTER AND TRANSMISSION ASSEMBLY....................................................................................................................600 DISASSEMBLY AND ASSEMBLY OF TORQUE CONVERTER..............................................................................................................................................607 DISASSEMBLY AN ASSEMBLY OF TORQUE CONVERTER VALVE.........................................................................................................................................614 DISASSEMBLY AND ASSEMBLY OF TRANSMISSION..................................................................................................................................................615 REMOVAL AND INSTALLATION OF TRANSMISSION VALVE............................................................................................................................................639 DISASSEMBLY AND ASSEMBLY OF TRANSMISSION VALVE............................................................................................................................................640 DISASSEMBLY AND ASSEMBLY OF TRANSFER......................................................................................................................................................644 DISASSEMBLY AND ASSEMBLY OF PTO...........................................................................................................................................................656 REMOVAL AND INSTALLATION OF CENTER SUPPORT................................................................................................................................................661 DISASSEMBLY AND ASSEMBLY OF CENTER SUPPORT................................................................................................................................................663 DISASSEMBLY AND ASSEMBLY OF DRIVE SHAFT...................................................................................................................................................667 REMOVAL AND INSTALLATION OF FRONT AXLE....................................................................................................................................................670 REMOVAL AND INSTALLATION OF REAR AXLE.....................................................................................................................................................672 REMOVAL AND INSTALLATION OF DIFFERENTIAL..................................................................................................................................................677 DISASSEMBLY AND ASSEMBLY OF DIFFERENTIAL..................................................................................................................................................679 DISASSEMBLY AND ASSEMBLY OF FINAL DRIVE...................................................................................................................................................687 REMOVAL AND INSTALLATION OF ROTARY VALVE..................................................................................................................................................692 REMOVAL AND INSTALLATION OF EMERGENCY STEERING PUMP.......................................................................................................................................693 REMOVAL AND INSTALLATION OF DIVERTER VALVE................................................................................................................................................694 DISASSEMBLY AND ASSEMBLY OF DIVERTER VALVE................................................................................................................................................695 REMOVAL AND INSTALLATION OF ACCUMULATOR CHARGE VALVE......................................................................................................................................697 DISASSEMBLY AND ASSEMBLY OF ACCUMULATOR CHARGE VALVE......................................................................................................................................698 REMOVAL AND INSTALLATION OF STEERING CYLINDER.............................................................................................................................................700 REMOVAL AND INSTALLATION OF STEERING VALVE................................................................................................................................................702 REMOVAL AND INSTALLATION OF BRAKE VALVE...................................................................................................................................................704 REMOVAL AND INSTALLATION OF SLACK ADJUSTER................................................................................................................................................705 DISASSEMBLY AND ASSEMBLY OF SLACK ADJUSTER................................................................................................................................................706 REMOVAL AND INSTALLATION OF BRAKE.........................................................................................................................................................708 DISASSEMBLY AND ASSEMBLY OF BRAKE.........................................................................................................................................................709 REMOVAL AND INSTALLATION OF PARKING BRAKE CALIPERS........................................................................................................................................713 DISASSEMBLY AND ASSEMBLY OF PARKING BRAKE CALIPERS........................................................................................................................................714 REMOVAL AND INSTALLATION OF PARKING BRAKE PAD.............................................................................................................................................716 REMOVAL AND INSTALLATION OF PARKING BRAKE SPRING CYLINDER.................................................................................................................................717 REMOVAL AND INSTALLATION OF BRAKE OIL TANK................................................................................................................................................718 REMOVAL AND INSTALLATION OF HYDRAULIC PUMP................................................................................................................................................719 REMOVAL AND INSTALLATOIN OF HYDRAULIC TANK AND FILTER CASE ASSEMBLY.......................................................................................................................721 REMOVAL AND INSTALLATION OF PPC VALVE.....................................................................................................................................................723 DISASSEMBLY AND ASSEMBLY OF PPC VALVE.....................................................................................................................................................725 REMOVAL AND INSTALLATION OF WORK EQUIPMENT CONTROL VALVE ASSEMBLY.........................................................................................................................726 DISASSEMBLY AND ASSEMBLY OF WORK EQUIPMENT CONTROL VALVE..................................................................................................................................728 REMOVAL AND INSTALLATION OF CAB...........................................................................................................................................................731 REMOVAL AND INSTALLATION OF FLOOR FRAME...................................................................................................................................................733 REMOVAL AND INSTALLATION OF CENTER HINGE PIN..............................................................................................................................................736 REMOVAL AND INSTALLATION OF WORK EQUIPMENT................................................................................................................................................743 REPLACEMENT OF BOOM FRONT END BUSH........................................................................................................................................................748 REMOVAL AND INSTALLATION OF BUCKET CYLINDER...............................................................................................................................................749 REMOVAL AND INSTALLATION OF LIFT CYLINDER.................................................................................................................................................750 DISASSEMBLY AND ASSEMBLY OF HYDRAULIC CYLINDER............................................................................................................................................752 REMOVAL AND INSTALLATION OF AIR CONDITIONER UNIT..........................................................................................................................................756 REMOVAL AND INSTALLATION OF AIR CONDITIONER COMPRESSOR....................................................................................................................................758 REMOVAL AND INSTALLATION OF RECEIVER TANK.................................................................................................................................................759 REMOVAL AND INSTALLATION OF AIR CONDITIONER CONDENSER.....................................................................................................................................760 REMOVAL AND INSTALLATION OF TRANSMISSION AND JOYSTICK STEERING CONTROLLER.................................................................................................................761 REMOVAL AND INSTALLATION OF MAIN MONITOR..................................................................................................................................................762 REMOVAL AND INSTALLATION OF FUEL TANK.....................................................................................................................................................764 REMOVAL AND INSTALLATION OF COUNTERWEIGHT.................................................................................................................................................766 40 MAINTENANCE STANDARD.......................................................................................................................................................................767 ENGINE MOUNT..............................................................................................................................................................................768 TRANSMISSION MOUNT........................................................................................................................................................................769 DAMPER....................................................................................................................................................................................770 TORQUE CONVERTER CHARGING, PPC AND BRAKE PUMP.............................................................................................................................................772 TORQUE CONVERTER ........................................................................................................................................................................774 TORQUE CONVERTER REGULATOR VALVE..........................................................................................................................................................775 TRANSMISSION (1/2)........................................................................................................................................................................776 TRANSMISSION (2/2)........................................................................................................................................................................778 TRANSFER..................................................................................................................................................................................779 TRANSMISSION CONTROL VALVE................................................................................................................................................................780 DRIVE SHAFT...............................................................................................................................................................................785 CENTER SUPPORT............................................................................................................................................................................786 DIFFERENTIAL (1/2)........................................................................................................................................................................787 DIFFERENTIAL (2/2)........................................................................................................................................................................788 FINAL DRIVE...............................................................................................................................................................................790 AXLE MOUNT................................................................................................................................................................................792 CENTER HINGE PIN..........................................................................................................................................................................794 STEERING DEMAND VALVE.....................................................................................................................................................................796 DIVERTER VALVE............................................................................................................................................................................798 STEERING CYLINDER MOUNT...................................................................................................................................................................799 EMERGENCY STEERING PUMP...................................................................................................................................................................800 BRAKE VALVE...............................................................................................................................................................................801 SLACK ADJUSTER............................................................................................................................................................................804 BRAKE.....................................................................................................................................................................................805 PARKING BRAKE.............................................................................................................................................................................807 PPC VALVE.................................................................................................................................................................................809 PPC RELIEF VALVE..........................................................................................................................................................................811 CONTROL PUMP..............................................................................................................................................................................812 STEERING PUMP.............................................................................................................................................................................813 SWITCH PUMP...............................................................................................................................................................................814 MAIN PISTON PUMP..........................................................................................................................................................................815 MAIN CONTROL VALVE........................................................................................................................................................................816 HYDRAULIC CYLINDER........................................................................................................................................................................818 WORK EQUIPMENT LINKAGE....................................................................................................................................................................819 BUCKET POSITIONER AND BOOM KICK-OUT.......................................................................................................................................................821 ROPS CANOPY...............................................................................................................................................................................822 90 OTHERS.....................................................................................................................................................................................823 WORK EQUIPMENT HYDRAULIC CIRCUIT DIAGRAM..................................................................................................................................................824 ELECTRIC CIRCUIT DIAGRAM (1/5)............................................................................................................................................................825 ELECTRIC CIRCUIT DIAGRAM (2/5)............................................................................................................................................................826 ELECTRIC CIRCUIT DIAGRAM (3/5)............................................................................................................................................................827 ELECTRIC CIRCUIT DIAGRAM (4/5)............................................................................................................................................................828 ELECTRIC CIRCUIT DIAGRAM (5/5)............................................................................................................................................................829 ELECTRIC CIRCUIT DIAGRAM (ENGINE SHUT-DOWN)...............................................................................................................................................830 ELECTRIC CIRCUIT DIAGRAM (AUTO-GREASING)..................................................................................................................................................831
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