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KOMATSU GD555-3C GD655-3C GD675-3C SHOP MANUAL SEBM020911 – PDF DOWNLOAD
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KOMATSU GD555-3C GD655-3C GD675-3C SHOP MANUAL SEBM020911 – PDF DOWNLOAD
MACHINE MODEL SERIAL NUMBER
GD555-3C 00 50001 and up 00
GD655-3C 00 50001 and up 00
GD675-3C 00 50001 and up
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Description
KOMATSU GD555-3C GD655-3C GD675-3C SHOP MANUAL SEBM020911 – PDF DOWNLOAD
FILE DETAILS:
KOMATSU GD555-3C GD655-3C GD675-3C SHOP MANUAL SEBM020911 – PDF DOWNLOAD
Language : English
Pages : 743
Downloadable : Yes
File Type : PDF
MACHINE MODEL SERIAL NUMBER
GD555-3C 00 50001 and up 00
GD655-3C 00 50001 and up 00
GD675-3C 00 50001 and up
IMAGES PREVIEW OF THE MANUAL:
TABLE OF CONTENTS:
KOMATSU GD555-3C GD655-3C GD675-3C SHOP MANUAL SEBM020911 – PDF DOWNLOAD
COVER...................................................................................................................................... 1 CONTENTS................................................................................................................................... 2 01 GENERAL................................................................................................................................. 27 GENERAL ASSEMBLY DRAWING............................................................................................................... 28 SPECIFICATIONS......................................................................................................................... 29 WEIGHT TABLE........................................................................................................................... 41 FUEL, COOLANT, AND LUBRICANT SELECTION................................................................................................. 43 10 STRUCTURE, FUNCTION AND MAINTENANCE STANDARD............................................................................................ 45 ACCELERATOR CONTROL LINKAGE............................................................................................................ 46 ACCELERATOR PEDAL...................................................................................................................... 47 FAN DRIVE.............................................................................................................................. 48 POWER TRAIN DIAGRAM.................................................................................................................... 49 TRANSMISSION HYDRAULIC PIPING.......................................................................................................... 50 TRANSMISSION CONTROL................................................................................................................... 54 TORQUE CONVERTER....................................................................................................................... 55 TORQUE CONVERTER LOCK-UP VALVE (ECMV).................................................................................................. 60 TRANSMISSION........................................................................................................................... 63 TRANSMISSION VALVE..................................................................................................................... 92 ECMV (ELECTRONIC CONTROL MODULATION VALVE)............................................................................................. 93 MAIN RELIEF VALVE...................................................................................................................... 98 TRANSMISSION PUMP......................................................................................................................101 TRANSMISSION AND DIFFERENTIAL LOCK PUMP (WITH DIFFERENTIAL LOCK).......................................................................102 FINAL DRIVE............................................................................................................................104 TANDEM DRIVE...........................................................................................................................110 STEERING HYDRAULIC PIPING DRAWING......................................................................................................114 STEERING VALVE (Q/AMP MANUAL ORBIT-ROLL TYPE)..........................................................................................117 PRIORITY ACC GOVERNOR VALVE (SERIAL NO.50001-51000)....................................................................................124 PRIORITY VALVE (SERIAL NO.51001 AND UP)................................................................................................131 ACCUMULATOR PRESSURE GOVERNOR VALVE (SERIAL NO.51001 AND UP)...........................................................................138 FRONT AXLE.............................................................................................................................140 BRAKE HYDRAULIC PIPING ................................................................................................................144 BRAKE VALVE............................................................................................................................148 WHEEL BRAKE............................................................................................................................152 SLACK ADJUSTER.........................................................................................................................153 ACCUMULATOR............................................................................................................................156 PARKING BRAKE..........................................................................................................................157 PARKING BRAKE AND BANK CONTROL VALVE...................................................................................................158 WORK EQUIPMENT HYDRAULIC PIPING DRAWING................................................................................................160 HYDRAULIC PUMP (SERIAL NO.50001-51000).................................................................................................170 HYDRAULIC PUMP (SERIAL NO.51001 AND UP)................................................................................................192 MAIN CONTROL VALVE.....................................................................................................................215 CLSS...................................................................................................................................234 WORK EQUIPMENT CONTROL.................................................................................................................246 HYDRAULIC SYSTEM.......................................................................................................................248 HYDRAULIC TANK.........................................................................................................................254 SWIVEL JOINT...........................................................................................................................255 PILOT CHECK VALVE......................................................................................................................258 BLADE ACCUMULATOR, FLOAT VALVE.........................................................................................................263 SHUT-OFF VALVE.........................................................................................................................267 BLADE FLOAT DEVICE.....................................................................................................................268 CIRCLE ROTATION MOTOR..................................................................................................................270 HYDRAULIC CYLINDER.....................................................................................................................272 CIRCLE, DRAWBAR........................................................................................................................278 LIFTER BRACKET LOCK PIN................................................................................................................280 BLADE..................................................................................................................................282 CIRCLE ROTATION GEAR...................................................................................................................284 SCARIFIER..............................................................................................................................288 RIPPER.................................................................................................................................290 MAIN FRAME.............................................................................................................................293 AIR CONDITIONER (IF EQUIPPED)..........................................................................................................294 ENGINE STARTING CIRCUIT................................................................................................................298 ENGINE STOP CIRCUIT....................................................................................................................302 PREHEAT CIRCUIT........................................................................................................................304 AUTOMATIC SHIFT CONTROL SYSTEM.........................................................................................................306 TRANSMISSION CONTROLLER................................................................................................................307 MONITOR................................................................................................................................311 SENSORS................................................................................................................................314 20 TESTING AND ADJUSTING...................................................................................................................321 STANDARD VALUE TABLE...................................................................................................................322 STANDARD VALUE TABLE FOR ENGINE....................................................................................................322 STANDARD VALUE TABLE FOR CHASSIS...................................................................................................326 STANDARD VALUE TABLE FOR ELECTRICAL SYSTEM.........................................................................................333 TESTING AND ADJUSTING..................................................................................................................343 TOOLS FOR TESTING, ADJUSTING AND TROUBLESHOOTING...................................................................................344 MEASURING EXHAUST COLOR............................................................................................................345 MEASURING BLOWBY PRESSURE..........................................................................................................346 MEASURING ENGINE OIL PRESSURE......................................................................................................347 MEASURING ENGINE SPEED.............................................................................................................347 TESTING FAN BELT TENSION...........................................................................................................348 TESTING AIR CONDITIONER COMPRESSOR BELT TENSION....................................................................................349 MEASURING TORQUE CONVERTER STALL SPEED.............................................................................................349 CHECKING CLUTCH OIL PRESSURE.......................................................................................................350 CHECKING TORQUE CONVERTER OIL PRESSURE.............................................................................................351 ADJUSTING SPEED SENSOR.............................................................................................................352 FLUSHING TORQUE CONVERTER, TRANSMISSION CIRCUIT....................................................................................354 ADJUSTING ACCELERATOR CONTROL LINKAGE..............................................................................................355 TESTING BRAKE DISC.................................................................................................................356 TESTING AND ADJUSTING PARKING BRAKE PAD CLEARANCE..................................................................................357 TESTING ACCUMULATOR CHARGE PRESSURE................................................................................................358 TESTING AND ADJUSTING WORK EQUIPMENT OIL PRESSURE..................................................................................358 TESTING AND ADJUSTING LS DIFFERENTIAL PRESSURE.....................................................................................359 ADJUSTING PC VALVE.................................................................................................................361 BLEEDING AIR FROM HYDRAULIC CIRCUIT................................................................................................361 MEASURING INTERNAL CYLINDER LEAKAGE................................................................................................362 MEASURING STEERING, BRAKE OIL PRESSURE.............................................................................................364 BLEEDING AIR FROM BRAKE PIPING.....................................................................................................365 CHARGING NITROGEN GAS FOR BRAKE, WORK EQUIPMENT ACCUMULATOR........................................................................366 TESTING AND ADJUSTING CIRCLE GUIDE CLEARANCE.......................................................................................367 TESTING AND ADJUSTING SLIP CLUTCH-TYPE ROTARY DEVICE...............................................................................369 MEMORIZING IDLE AND FULL POSITION PROCEDURE........................................................................................371 INITIAL LEARNING METHOD FOR TRANSMISSION CONTROLLER................................................................................372 DIODE CHECKING PROCEDURE...........................................................................................................374 MOVING MACHINE WHEN TRANSMISSION VALVE FAILS.......................................................................................375 ADJUSTING CAB STOPPER BOLT.........................................................................................................377 TROUBLESHOOTING........................................................................................................................379 TROUBLESHOOTING POINTS TO REMEMBER.................................................................................................380 TROUBLESHOOTING SEQUENCE...........................................................................................................381 POINTS TO REMEMBER WHEN PERFORMING MAINTENANCE.....................................................................................382 CHECKS BEFORE TROUBLESHOOTING......................................................................................................390 CONNECTOR TYPES AND MOUNTING LOCATIONS.............................................................................................391 CONNECTOR ARRANGEMENT DIAGRAM......................................................................................................400 CONNECTION TABLE FOR CONNECTOR PIN NUMBERS.........................................................................................408 MESSAGE CENTER DISPLAY AND TABLE ERROR CODES.......................................................................................429 USING THE TROUBLESHOOTING CHARTS...................................................................................................433 TROUBLESHOOTING OF ELECTRICAL SYSTEM (E MODE)......................................................................................435 ELECTRICAL CIRCUIT DIAGRAM.....................................................................................................436 E-1 ENGINE DOES NOT START......................................................................................................440 E-2 ENGINE DOES NOT STOP.......................................................................................................450 E-3 ENGINE PREHEATING PILOT LAMP DOES NOT GLOW.................................................................................452 E-4 ELECTRICAL COMPONENTS DO NOT WORK..........................................................................................454 TROUBLESHOOTING OF TRANSMISSION CONTROLLER SYSTEM (T MODE).........................................................................457 TRANSMISSION-CONTROLLER SYSTEM JUDGEMENT TABLE.................................................................................460 CONTROLLER ACTION WHEN PROBLEMS OCCUR WITH THE MACHINE.........................................................................464 ELECTRICAL CIRCUIT DIAGRAM.....................................................................................................484 T-1 FAILURE CODE [A1]..........................................................................................................488 T-2 FAILURE CODE [A2]..........................................................................................................489 T-3 FAILURE CODE [A3]..........................................................................................................490 T-4 FAILURE CODE [A4]..........................................................................................................491 T-5 FAILURE CODE [A5]..........................................................................................................492 T-6 FAILURE CODE [A8]..........................................................................................................493 T-7 FAILURE CODE [b1]..........................................................................................................494 T-8 FAILURE CODE [b2]..........................................................................................................495 T-9 FAILURE CODE [b3]..........................................................................................................496 T-10 FAILURE CODE [b4].........................................................................................................497 T-11 FAILURE CODE [b5].........................................................................................................498 T-12 FAILURE CODE [b6].........................................................................................................499 T-13 FAILURE CODE [b7].........................................................................................................500 T-14 FAILURE CODE [b8].........................................................................................................501 T-15 FAILURE CODE [C0].........................................................................................................502 T-16 FAILURE CODE [C1].........................................................................................................503 T-17 FAILURE CODE [C3].........................................................................................................504 T-18 FAILURE CODE [C4].........................................................................................................506 T-19 FAILURE CODE [C5].........................................................................................................508 T-20 FAILURE CODE [C6].........................................................................................................509 T-21 FAILURE CODE [C7].........................................................................................................510 T-22 FAILURE CODE [C8].........................................................................................................511 T-23 FAILURE CODE [C9].........................................................................................................512 T-24 FAILURE CODE [d1].........................................................................................................513 T-25 FAILURE CODE [d2].........................................................................................................514 T-26 FAILURE CODE [d4].........................................................................................................515 T-27 FAILURE CODE [d5].........................................................................................................516 T-28 FAILURE CODE [d6].........................................................................................................517 T-29 FAILURE CODE [d7].........................................................................................................518 T-30 FAILURE CODE [E1].........................................................................................................519 T-31 FAILURE CODE [E2].........................................................................................................520 T-32 FAILURE CODE [E3].........................................................................................................521 T-33 FAILURE CODE [E4].........................................................................................................523 T-34 FAILURE CODE [E5].........................................................................................................523 T-35 FAILURE CODE [E6].........................................................................................................524 T-36 FAILURE CODE [E7].........................................................................................................525 T-37 FAILURE CODE [E8].........................................................................................................525 T-38 FAILURE CODE [F1].........................................................................................................527 T-39 FAILURE CODE [F2].........................................................................................................527 T-40 FAILURE CODE [F3].........................................................................................................528 T-41 FAILURE CODE [F4].........................................................................................................529 T-42 FAILURE CODE [F5].........................................................................................................529 T-43 FAILURE CODE [F6].........................................................................................................530 T-44 FAILURE CODE [F7].........................................................................................................530 T-45 FAILURE CODE [F8].........................................................................................................531 T-46 FAILURE CODE [91].........................................................................................................532 T-47 FAILURE CODE [92].........................................................................................................532 T-48 FAILURE CODE [93].........................................................................................................533 T-49 FAILURE CODE [94].........................................................................................................534 T-50 FAILURE CODE [95].........................................................................................................534 T-51 FAILURE CODE [96].........................................................................................................535 T-52 FAILURE CODE [97].........................................................................................................535 T-53 FAILURE CODE [98].........................................................................................................537 TROUBLESHOOTING OF HYDRAULIC AND MECHANICAL SYSTEM (H MODE)........................................................................539 FAILURE TABLE: MODES AND CAUSES................................................................................................540 H-1 ALL WORK EQUIPMENT IS SLOW OR LACKS POWER..................................................................................542 H-2 NO WORK EQUIPMENT MOVES....................................................................................................543 H-3 EXCESSIVE DROP IN ENGINE SPEED, OR ENGINE STALLS...........................................................................543 H-4 ABNORMAL NOISE GENERATED AROUND THE PUMP...................................................................................544 H-5 EXCESSIVE BLADE DRIFT......................................................................................................544 H-6 IMPOSSIBLE TO RAISE FRONT OF MACHINE USING THE BLADE.......................................................................545 H-7 LACK OF ACTUATING POWER IN THE ARTICULATING, DRAWBAR SHIFT, SCARIFIER, LEANING, AND BLADE SHIFT CYLINDERS (LEFT, RIGHT)....545 H-8 EXCESSIVE LEANING CYLINDER DRIFT (TIRES LEAN)..............................................................................546 H-9 IMPOSSIBLE TO ROTATE THE CIRCLE............................................................................................546 H-10 EXCESSIVE SCARIFIER DRIFT.................................................................................................547 H-11 MACHINE DOES NOT MOVE IN EITHER FORWARD OR REVERSE........................................................................547 H-12 TRANSMISSION DOES NOT SHIFT-UP OR SHIFT-DOWN..............................................................................548 H-13 MACHINE IS SLOW OR LACKS POWER WHEN TRAVELING.............................................................................548 H-14 TORQUE CONVERTER LOCK-UP MALFUNCTION,CANNOT BE ACTUATED OR CANCELED.......................................................549 H-15 EXCESSIVE TIME LAG WHEN STARTING OR SHIFTING GEAR.........................................................................549 H-16 TORQUE CONVERTER OIL TEMPERATURE IS HIGH..................................................................................550 H-17 BRAKING FORCE IS INSUFFICIENT.............................................................................................551 TROUBLESHOOTING OF MAIN MONITOR SYSTEM (M MODE)....................................................................................553 FAILURE TABLE: MODES AND CAUSES................................................................................................554 ELECTRICAL CIRCUIT DIAGRAM FOR MAIN MONITOR SYSTEM.............................................................................556 M-1 ENGINE OIL PRESSURE CAUTION LAMP LIGHTS UP.................................................................................560 M-2 TRANSMISSION CONTROLLER CAUTION LAMP LIGHTS UP.............................................................................561 M-3 TRANSMISSION OIL TEMPERATURE CAUTION LAMP LIGHTS UP........................................................................561 M-4 DIFFERENTIAL OIL TEMPERATURE CAUTION LAMP LIGHTS UP (OPT)..................................................................562 M-5 BANK PIN CAUTION LAMP LIGHTS UP............................................................................................563 M-6 BRAKE OIL PRESSURE CAUTION LAMP LIGHTS UP..................................................................................564 M-7 BATTERY CHANGE CAUTION LAMP LIGHTS UP......................................................................................565 M-8 PREHEATING DISPLAY DOES NOT LIGHT UP.......................................................................................566 M-9 HIGH BEAM DISPLAY DOES NOT LIGHT UP........................................................................................567 M-10 WORKING LAMP DISPLAY DOES NOT LIGHT UP (OPT)..............................................................................568 M-11 DIFFERENTIAL LOCK ACTUATION DISPLAY DOES NOT LIGHT UP (OPT)...............................................................569 M-12 ACCUMULATOR ACTUATION DISPLAY DOES NOT LIGHT UP...........................................................................570 M-13 FLOAT ACTUATION DISPLAY DOES NOT LIGHT UP.................................................................................570 M-14 PARKING BRAKE DISPLAY DOES NOT LIGHT UP ..................................................................................572 M-15 TURN SIGNAL LAMP DISPLAY DOES NOT FLASH...................................................................................573 M-16 ARTICULATION GAUGE DOES NOT WORK..........................................................................................574 M-17 FUEL GAUGE DOES NOT WORK..................................................................................................576 M-18 ENGINE WATER TEMPERATURE GAUGE DOES NOT WORK..............................................................................578 M-19 TORQUE CONVERTER TEMPERATURE GAUGE DOES NOT WORK (OPT)....................................................................579 M-20 MESSAGE CENTER DOES NOT WORK..............................................................................................580 M-21 SERVICE METER DOES NOT WORK...............................................................................................581 30 DISASSEMBLY AND ASSEMBLY................................................................................................................583 METHOD OF USING MANUAL.................................................................................................................585 PRECAUTIONS WHEN CARRYING OUT OPERATION................................................................................................587 SPECIAL TOOL LIST......................................................................................................................590 SKETCHES OF SPECIAL TOOLS..............................................................................................................593 REMOVAL OF ENGINE HOOD ASSEMBLY (SERIAL NO.:50001-51000)...............................................................................598 INSTALLATION OF ENGINE HOOD ASSEMBLY (SERIAL NO.:50001-51000)..........................................................................599 REMOVAL OF ENGINE HOOD ASSEMBLY (SERIAL NO.:51001 AND UP)..............................................................................599 INSTALLATION OF ENGINE HOOD ASSEMBLY (SERIAL NO.:5101 AND UP)..........................................................................600 REMOVAL OF RADIATOR ASSEMBLY (SERIAL NO.:50001-51000)..................................................................................601 INSTALLATION OF RADIATOR ASSEMBLY (SERIAL NO.:50001-51000).............................................................................602 REMOVAL OF RADIATOR ASSEMBLY (SERIAL NO.:51001 AND UP).................................................................................603 INSTALLATION OF RADIATOR ASSEMBLY (SERIAL NO.:51001 AND UP)............................................................................605 REMOVAL OF FUEL TANK, HYDRAULIC TANK, AND COOLING WATER SUB TANK ASSEMBLY (SERIAL NO.:50001-51000).....................................606 INSTALLATION OF FUEL TANK, HYDRAULIC TANK, AND COOLING WATER SUB TANK ASSEMBLY (SERIAL NO.:50001-51000)................................608 REMOVAL OF FUEL TANK, HYDRAULIC TANK, AND COOLING WATER SUB TANK ASSMBLY (SERIAL NO.:51001 AND UP).....................................610 INSTALLATION OF FUEL TANK, HYDRAULIC TANK, AND COOLING WATER SUB ATNK ASSEMBLY (SERIAL NO.:51001 AND UP)...............................612 REMOVAL OF ENGINE ASSEMBLY.............................................................................................................613 INSTALLATION OF ENGINE ASSEMBLY........................................................................................................614 REMOVAL OF ENGINE ASSEMBLY, TRANSMISSION ASSEMBLY AS ONE UNIT..........................................................................616 INSTALLATION OF ENGINE ASSEMBLY, TRANSMISSION ASSEMBLY AS ONE UNIT.....................................................................617 REMOVAL OF TRANSMISSION ASSEMBLY.......................................................................................................618 INSTALLATION OF TRANSMISSION ASSEMBLY..................................................................................................620 DISASSEMBLY OF TORQUE CONVERTER ASSEMBLY...............................................................................................623 ASSEMBLY OF TORQUE CONVERTER ASSEMBLY..................................................................................................625 DISASSEMBLY OF TRANSMISSION ASSEMBLY...................................................................................................629 ASSEMBLY OF TRANSMISSION ASSEMBLY......................................................................................................645 REMOVAL OF FINAL DRIVE ASSEMBLY........................................................................................................666 INSTALLATION OF FINAL DRIVE ASSEMBLY...................................................................................................669 DISASSEMBLY OF FINAL DRIVE ASSEMBLY....................................................................................................671 ASSEMBLY OF FINAL DRIVE ASSEMBLY.......................................................................................................672 DISASSEMBLY OF FINAL BRAKE CASE........................................................................................................675 ASSEMBLY OF FINAL BRAKE CASE...........................................................................................................676 DISASSEMBLY OF SIDE CASE...............................................................................................................678 ASSEMBLY OF SIDE CASE..................................................................................................................679 DISASSEMBLY OF DIFFERENTIAL GEAR ASSEMBLY..............................................................................................681 ASSEMBLY OF DIFFERENTIAL GEAR ASSEMBLY.................................................................................................682 DISASSEMBLY OF BEVEL GEAR..............................................................................................................685 ASSEMBLY OF BEVEL GEAR.................................................................................................................686 DISASSEMBLY OF BEVEL PINION ASSEMBLY...................................................................................................687 ASSEMBLY OF BEVEL PINION ASSEMBLY......................................................................................................688 REMOVAL OF OPERATOR'S CAB ASSEMBLY.....................................................................................................689 INSTALLATION OF OPERATOR'S CAB ASSEMBLY................................................................................................691 REMOVAL OF OPERATOR'S CAB FLOOR........................................................................................................693 INSTALLATION OF OPERATOR'S CAB FLOOR...................................................................................................695 REMOVAL OF STEERING VALVE (ORBIT-ROLL).................................................................................................697 INSTALLATION OF STEERING VALVE (ORBIT-ROLL)............................................................................................697 STANDARD INTEGRAL ORBIT-ROLL...........................................................................................................698 DISASSEMBLY OF STEERING VALVE..........................................................................................................700 ASSEMBLY OF STEERING VALVE.............................................................................................................703 REMOVAL OF BLADE ASSEMBLY..............................................................................................................708 INSTALLATION OF BLADE ASSEMBLY.........................................................................................................708 REMOVAL OF CIRCLE DRAWBAR ASSEMBLY.....................................................................................................709 INSTALLATION OF CIRCLE DRAWBAR ASSEMBLY................................................................................................710 REMOVAL OF BLADE CIRCLE GEAR ASSEMBLY..................................................................................................711 INSTALLATION OF BLADE CIRCLE GEAR ASSEMBLY.............................................................................................712 REMOVAL OF BLADE CIRCLE ROTATION GEAR ASSEMBLY (WTH SHEAR PIN).........................................................................713 INSTALLATION OF BLADE CIRCLE ROTATION GEAR ASSEMBLY (WTH SHEAR PIN)....................................................................714 DISASSEMBLY OF BLADE CIRCLE ROTATION GEAR ASSEMBLY (WITH SHEAR PIN)....................................................................715 ASSEMBLY OF BLADE CIRCLE ROTATION GEAR ASSEMBLY (WITH SHEAR PIN).......................................................................717 DISASSEMBLY OF CIRCLE ROTATING GEAR ASSEMBLY (WITH SLIP CLUTCH)........................................................................719 ASSEMBLY OF CIRCLE ROTATING GEAR ASSEMBLY (WITH SLIP CLUTCH)...........................................................................721 90 OTHERS..................................................................................................................................725 TRANSMISSION HYDRAULIC CIRCUIT (SERIAL NO.:50001-51000)................................................................................727 TRANSMISSION HYDRAULIC CIRCUIT (SERIAL NO.:51001 AND UP)...............................................................................728 HYDRAULIC CIRCUIT DIAGRAM (SERIAL NO.:50001-51000).....................................................................................729 HYDRAULIC CIRCUIT DIAGRAM (1/2) (SERIAL NO.:51001 AND UP)..............................................................................730 HYDRAULIC CIRCUIT DIAGRAM (2/2) (SERIAL NO.:51001 AND UP)..............................................................................731 ELECTRICAL CIRCUIT DIAGRAM (1/6) (SERIAL NO.:50001-51000)..............................................................................732 ELECTRICAL CIRCUIT DIAGRAM (2/6) (SERIAL NO.:50001-51000)..............................................................................733 ELECTRICAL CIRCUIT DIAGRAM (3/6) (SERIAL NO.:50001-51000)..............................................................................734 ELECTRICAL CIRCUIT DIAGRAM (4/6) (SERIAL NO.:50001-51000)..............................................................................735 ELECTRICAL CIRCUIT DIAGRAM (5/6) (SERIAL NO.:50001-51000)..............................................................................736 ELECTRICAL CIRCUIT DIAGRAM (6/6) (SERIAL NO.:50001-51000)..............................................................................737 ELECTRICAL CIRCUIT DIAGRAM (1/6) (SERIAL NO.:51001 AND UP).............................................................................738 ELECTRICAL CIRCUIT DIAGRAM (2/6) (SERIAL NO.:51001 AND UP).............................................................................739 ELECTRICAL CIRCUIT DIAGRAM (3/6) (SERIAL NO.:51001 AND UP).............................................................................740 ELECTRICAL CIRCUIT DIAGRAM (4/6) (SERIAL NO.:51001 AND UP).............................................................................741 ELECTRICAL CIRCUIT DIAGRAM (5/6) (SERIAL NO.:51001 AND UP).............................................................................742 ELECTRICAL CIRCUIT DIAGRAM (6/6) (SERIAL NO.:51001 AND UP).............................................................................743
DESCRIPTION:
KOMATSU GD555-3C GD655-3C GD675-3C SHOP MANUAL SEBM020911 – PDF DOWNLOAD
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.
S.S 28/12/24
