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Komatsu WA1200-3 Wheel Loader Service Repair Manual – PDF Download
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- Komatsu WA1200-3 Wheel Loader Service Repair Manual
- SERIAL NO:50001 and up
- PUBLICATION NUMBER:SEBM018225
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Description
Komatsu WA1200-3 Wheel Loader Service Repair Manual
Description:
Komatsu WA1200-3 Wheel Loader Service Repair Manual
This shop manual contains the necessary technical information for services performed in a workshop. For ease of understanding, the manual is divided into the following sections.
00. FOREWORD
This section explains the safety and basic information.
01. GENERAL
This section explains the specifications of the machine.
10. 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.
20. 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.
30. DISASSEMBLY AND ASSEMBLY
This section explains the procedures for removing, installing, disassembling and assembling each component, as well as precautions for them.
40. 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”.
90. 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 WA1200-3 Wheel Loader Service Repair Manual
COVER ........................................................................................................... 1 CONTENTS......................................................................................................... 2 01 GENERAL ...................................................................................................... 48 GENERAL ASSEMBLY DRAWING .................................................................................... 49 SPECIFICATIONS .............................................................................................. 50 WEIGHT TABLE ................................................................................................ 53 LIST OF LUBRICANT AND WATER.................................................................................. 55 10 STRUCTURE AND FUNCTION........................................................................................ 59 OUTLINE...................................................................................................... 60 TADIATOR AND HYDRAULIC OIL COOLER ........................................................................... 62 DAMPER ...................................................................................................... 63 TORQUE CONVERTER AND TRANSMISSION PIPING .................................................................... 64 TORQUE CONVERTER ............................................................................................ 65 MAIN RELIEF VALVE AND TORQUE CONVERTER RELIEF VALVE.......................................................... 73 TORQUE CONVERTER REGULATOR VALVE ............................................................................ 77 ECMV ........................................................................................................ 79 TRANSMISSION................................................................................................. 85 TRANSMISSION CONTROL VALVE................................................................................... 95 LUBRICATING OIL RELIEF VALVE ................................................................................ 106 TRANSFER .................................................................................................... 107 TORQUE CONVERTER OIL COOLER ................................................................................. 109 CENTER SUPPORT .............................................................................................. 110 AXLE ........................................................................................................ 111 FINAL DRIVE.................................................................................................. 116 AXLE MOUNT .................................................................................................. 118 CENTER HINGE PIN ............................................................................................ 120 JACK-UP POINT................................................................................................ 121 ARRANGEMENT OF STEERING EQUIPMENT............................................................................ 123 AJSS (ADVANCED JOYSTICK STEERING SYSTEM)..................................................................... 124 STEERING PUMP ............................................................................................... 125 SWITCH PUMP ................................................................................................. 128 SERVO VALVE ................................................................................................. 131 STEERING DEMAND VALVE........................................................................................ 135 ROTARY VALVE ................................................................................................ 146 EPC VALVE ................................................................................................... 149 DIVERTER VALVE .............................................................................................. 150 ARRANGEMENT OF BRAKE EQUIPMENT............................................................................... 154 BRAKE VALVE ................................................................................................. 155 HARGE VALVE ................................................................................................. 160 ACCUMULATOR (FOR BRAKE)...................................................................................... 164 SLACK ADJUSTER............................................................................................... 165 BRAKE........................................................................................................ 168 PARKING BRAKE................................................................................................ 169 PARKING BRAKE OIL CIRCUIT CHECK VALVE ASSEMBLY............................................................... 171 ARRANGEMENT OF HYDRAULIC EQUIPMENT .......................................................................... 174 WORK EQUIPMENT LEVER LINKAGE ................................................................................ 176 HYDRAULIC TANK .............................................................................................. 177 WORK EQUIPMENT PUMP NO.1 .................................................................................... 180 WORK EQUIPMENT PUMP NO.2 .................................................................................... 193 WORK EQUIPMENT PUMP NEUTRAL CUT VALVE (NC VALVE)............................................................. 210 PPC VALVE (PROPORTIONAL PRESSURE VALVE) ..................................................................... 212 PPC RELIEF VALVE ............................................................................................ 216 ACCUMULATOR(FOR PPC VALVE) .................................................................................. 217 MAIN CONTROL VALVE .......................................................................................... 218 WORK EQUIPMENT LINKAGE ...................................................................................... 231 OPERATION OF PROXIMITY SWITCH ............................................................................... 233 AIR CONDITIONER ............................................................................................. 235 MACHINE MONITOR SYSTEM....................................................................................... 238 MAIN MONITOR ................................................................................................ 241 CGC MONITOR.................................................................................................. 245 MULTI MONITOR................................................................................................ 284 ALL-RANGE ELECTRONIC CONTROL AUTOMATIC TRANSMISSION (ATM) SYSTEM............................................. 320 MODULATED CLUTCH (MOD/C) CONTROL SYSTEM ..................................................................... 335 WORK EQUIPMENT AND JOYSTICK STEERING CONTROL SYSTEM.......................................................... 339 WORK EQUIPMENT AND JOYSTICK STEERING CONTROLLER ............................................................. 348 ENGINE STARTING CIRCUIT...................................................................................... 349 ENGINE STOPPING CIRCUIT...................................................................................... 355 ETHER INJECTION CIRCUIT...................................................................................... 357 ELECTRIC PARKING BRAKE CONTROL .............................................................................. 359 PARKING BRAKE SOLENOID VALVE ................................................................................ 369 EMERGENCY PARKING BRAKE RESET SOLENOID VALVE................................................................. 370 KICK-DOWN SWITCH AND AUTO SHIFT/MANUAL SHIFT SELECTOR SWITCH................................................. 371 BATTERY DISCONNECTOR SWITCH.................................................................................. 373 EMERGENCY ENGINE STOP SWITCH (FOR RIO TINTO)................................................................. 375 HYDRAULIC OIL LEVEL CAUTION DISPLAY (FOR RIO TINTO).......................................................... 378 20 TESTING AND ADJUSTING......................................................................................... 381 STANDARD VALUE TABLE ........................................................................................ 381 STANDARD VALUE TABLE FOR ENGINE.......................................................................... 382 STANDARD VALUE TABLE FOR CHASSIS......................................................................... 383 STANDARD VALUE TABLE FOR ELECTRICAL PARTS ............................................................... 389 TESTING AND ADJUSTING........................................................................................ 411 ITEMS TO BE PREPARED LIST OF DEVICES FOR TROUBLESHOOTING................................................. 413 SAFETY PRECAUTIONS BEFORE STARTING WORK.................................................................. 416 ITEMS RELATED TO ENGINE MEASURING ENGINE SPEED........................................................... 419 MEASURING EXHAUST GAS COLOR.............................................................................. 423 MEASURING BLOW-BY PRESSURE............................................................................... 424 MEASURING ENGINE OIL PRESSURE............................................................................ 426 MEASURING EXHAUST TEMPERATURE............................................................................ 428 MEASURING BOOSTP RESSURE................................................................................. 430 PERFORMANCE CHECK OF RADIATOR............................................................................ 432 MEASURING WIND VELOCITY THROUGH RADIATOR AND OIL COOLER.................................................. 433 TESTING AND ADJUSTING FAN BELT TENSION................................................................... 435 TESTING AND ADJUSTING BELT TENSION OF AIR CONDITIONER COMPRESSOR......................................... 435 ADJUSTING ROTATION SENSOR................................................................................ 436 POWER TRAIN TESTING AND ADJUSTING TORQUE CONVERTER AND TRANSMISSION OIL PRESSURE......................... 438 TRACTION CONTROL FUNCTION CHECK PROCEDURE................................................................ 446 PERFORMANCE CHECK OF TORQUE CONVERTER OIL COOLER......................................................... 447 MEASURING FAN SPEED FOR ADDITIONAL COOLER................................................................ 448 FLUSHING PROCEDURE FOR HYDRAULIC CIRCUIT OF TORQUE CONVERTER AND TRANSMISSION............................ 449 HOW TO MOVE MACHINE WHEN TRANSMISSION VALVE IS BROKEN.................................................... 450 HOW TO MEASURE CLEARANCE (PLAY) IN CENTER HINGE BEARING.................................................. 454 MEASUREMENT PROCEDURE FOR WEAR OF REAR AXLE SUPPORT...................................................... 456 STEERING SYSTEM TESTING AND ADJUSTING STEERING OIL PRESSURE.............................................. 457 TESTING AND ADJUSTING EMERGENCY STEERING OIL PRESSURE.................................................... 459 BLEEDING AIR FROM STEERING CIRCUIT....................................................................... 461 ADJUSTING STEERING STOPPER BOLT.......................................................................... 463 ADJUSTING STEERING FOLLOW-UP LINKAGE..................................................................... 464 TESTING STEERING EPC VALVE............................................................................... 469 TESTING AND ADJUSTING STEERING SURGE CUT VALVE OIL PRESSURE.............................................. 470 TESTING AND ADJUSTING STEERING MAIN RELIEF VALVE OIL PRESSURE............................................ 472 MEASURING ROTARY VALVE OUTPUT PRESSURE................................................................... 474 BRAKE SYSTEM TESTING DROP OF WHEEL BRAKE OIL PRESSURE.................................................... 478 TESTING WHEEL BRAKE FUNCTION............................................................................. 479 CHECKING SLACK ADJUSTER.................................................................................. 480 MEASURING WEAR OF WHEEL BRAKE DISC....................................................................... 481 TESTING AND ADJUSTING CHARGE CUT-IN AND CUT-OUT PRESSURE OF ACCUMULATOR.................................. 482 TESTING BRAKE ACCUMULATOR FOR LEAKAGE.................................................................... 486 TESTING EMERGENCY PARKING BRAKE VALVE FOR OIL LEAKAGE.................................................... 488 TESTING BRAKE VALVE FOR OIL LEAKAGE...................................................................... 490 TESTING BRAKE COOLING OIL PRESSURE....................................................................... 494 PERFORMANCE CHECK OF BRAKE OIL COOLER.................................................................... 496 TESTING PARKING BRAKE PERFORMANCE ....................................................................... 497 TESTING WEAR OF PARKING BRAKE DISC....................................................................... 498 HOW TO RESET PARKING BRAKE MANUALLY...................................................................... 499 MEASURING PARKING BRAKE OIL PRESSURE..................................................................... 500 HYDRAULIC EQUIPMENT TESTING AND ADJUSTING WORK EQUIPMENT OIL PRESSURE.................................... 501 MEASUREMENT PROCEDURE OF WORK EQUIPMENT OIL PRESSURE WITH OIL PRESSURE GAUGE............................. 505 TESTING AND ADJUSTING PPC OIL PRESSURE................................................................... 506 ADJUSTING PPC VALVE LINKAGE.............................................................................. 511 MEASURING POINTS OF HYDRAULIC PUMP OIL PRESSURE.......................................................... 513 HYDRAULIC PUMP PIPING LINE............................................................................... 515 TESTING AND ADJUSTING PV CONTROL RELIEF VALVE OIL PRESSURE............................................... 517 TESTING AND ADJUSTING DIFFERENTIAL PRESSURE VALVE CONTROL OIL PRESSURE................................... 518 TESTING WORK EQUIPMENT PUMP ES VALVE OUTPUT PRESSURE..................................................... 521 TESTING AND ADJUSTING WORK EQUIPMENT PUMP CO VALVE (CUT-OFF) OIL PRESSURE................................ 523 TESTING WORK EQUIPMENT CONTROL VALVE OPERATION BY WORK EQUIPMENT SPEED (WORK EQUIPMENT SPEED IS LOW)..... 531 PERFORMANCE CHECK OF HYDRAULIC OIL COOLER (CHECK BY TEMPERATUREDIFFERENCE)............................... 539 PERFORMANCE CHECK OF HYDRAULIC OIL COOLER (CHECK BY MEASURING OIL PRESSURE).............................. 540 BLEEDING AIR FROM EACH PART.............................................................................. 543 RELEASING RESIDUAL PRESSURE FROM HYDRAULIC CIRCUIT....................................................... 549 TESTING OF ACCUMULATOR NITROGEN GAS PRESSURE AND PROCEDURE FOR CHARGING ACCUMULATOR WITH NITROGEN GAS.... 550 WORK EQUIPMENT SYSTEM CHECKING AND ADJUSTING WORK EQUIPMENT CONTROL LEVER LINKAGE........................ 556 ELECTRICAL EQUIPMENT TESTING AND ADJUSTING BUCKET PROXIMITY SWITCH....................................... 560 TESTING AND ADJUSTING LIFT ARM POTENTIOMETER............................................................. 561 ADJUSTING LIFT ARM HORIZONTAL DETECTION SWITCH........................................................... 562 PROCEDURE FOR SETTING INITIAL VALUE FOR REMOTE LIFT ARM POSITIONER (METHOD OF INPUTTING BASE POINT)...... 563 CHECKING PROXIMITY SWITCH ACTUATION PILOT LAMP........................................................... 565 INITIAL LEARNING METHOD OF TRANSMISSION CONTROLLER....................................................... 566 ADJUSTING MAIN MONITOR (SPEEDOMETER MODULE) ............................................................. 567 ADJUSTING STEERING LEVER ANGLE AND FRAME ANGLE SENSORS................................................... 568 CHECKING AND ADJUSTING INSTALLED POSITIONS OF POTENTIOMETERS............................................. 570 PROCEDURE FOR CHECKING DIODE............................................................................. 573 CHECKING GREASING CONDITION OF CENTER HINGE PIN PORTION.................................................. 574 METHOD OF ADJUSTING AUTO-GREASE INJECTOR DISCHARGE AMOUNT................................................ 575 METHOD OF SETTING AUTO-GREASE TIMER ..................................................................... 576 VHMS CONTROLLER BASIC PRECAUTIONS........................................................................ 578 TESTING AND MAINTAINING VHMS CONTROLLER.................................................................. 584 VHMS CONTROLLER INITIAL SETTING PROCEDURE................................................................ 585 PRECAUTIONS FOR REPLACING VHMS CONTROLLER................................................................ 603 MEASUREMENT PROCEDURE BY DOWNLOADING DATA IN VHMS CONTROLLER............................................. 611 MEASUREMENT PROCEDURE BY CGC MONITOR..................................................................... 618 MEASUREMENT PROCEDURE BY MULTI MONITOR................................................................... 620 SPECIAL FUNCTIONS OF MACHINE CONTROL MONITOR (MULTI MONITOR)............................................. 622 OUTLINE OF MEASUREMENT PROCEDURE FOR PM CLINIC........................................................... 677 PREPARATION FOR MEASUREMENT FOR PM CLINIC................................................................ 679 Pm clinic check sheet.................................................................................... 681 TROUBLESHOOTING.............................................................................................. 685 POINTS TO REMEMBER WHEN TROUBLESHOOTING.................................................................. 686 SEQUENCE OF EVENTS IN TROUBLESHOOTING.................................................................... 687 CHECKS BEFORE TROUBLESHOOTING............................................................................ 688 TROUBLESHOOTING PROCEDURE FOR WORK EQUIPMENT HYDRAULIC SYSTEM AND STEERING SYSTEM........................ 700 HANDLING OF ELECTRIC EQUIPMENT AND HYDRAULIC COMPONENT .................................................. 710 CONNECTOR TYPES AND MOUNTING LOCATIONS................................................................... 721 CONNECTOR ARRANGEMENT DIAGRAM............................................................................ 727 CONNECTION TABLE FOR CONNECTOR PIN NUMBERS............................................................... 737 T-BRANCH BOX AND T-BRANCH ADAPTER TABLE.................................................................. 773 EXPLANATION OF FUNCTIONS OF ELECTRIC CONTROL MECHANISM .................................................. 776 METHOD OF DISPLAYING ACTION CODE AND FAILURE CODE........................................................ 782 FAILURE CODES LIST....................................................................................... 794 METHOD OF USING JUDGEMENT TABLE.......................................................................... 801 METHOD OF USING TROUBLESHOOTING CHARTS................................................................... 802 METHOD OF USING MATRIX TROUBLESHOOTING TABLES ........................................................... 804 TROUBLESHOOTING OF ENGINE CONTROLLER SYSTEM (G MODE)..................................................... 806 TROUBLESHOOTING OF TRANSMISSION CONTROLLER SYSTEM (T MODE)............................................... 816 TROUBLESHOOTING OF MODULATED CLUTCH CONTROLLER SYSTEM (MC MODE).......................................... 870 TROUBLESHOOTING OF WORK EQUIPMENT CONTROLLER (JOYSTICK STEERING CONTROL) SYSTEM (J MODE)................. 909 TROUBLESHOOTING OF WORK EQUIPMENT CONTROLLER (REMOTE BOOM POSITIONER CONTROL) SYSTEM (W MODE)............ 928 TROUBLESHOOTING OF MAIN MONITOR SYSTEM (M MODE).......................................................... 945 TROUBLESHOOTING OF VHMS CONTROLLER SYSTEM (V MODE)....................................................... 980 TROUBLESHOOTING OF HYDRAULIC AND MECHANICAL SYSTEM (H MODE)..............................................1108 TROUBLESHOOTING BY FAILUE CODE (DISPLAY OF CODE).........................................................1331 TROUBLESHOOTING OF ELECTRICAL SYSTEM (Without failure code) (E-MODE)....................................1516 30 DISASSEMBLY AND ASSEMBLY......................................................................................1630 How to read this manual......................................................................................1632 Coating materials list.......................................................................................1634 Special tool list............................................................................................1637 Sketches of special tools....................................................................................1642 Procedure for flushing work equipment and steering hydraulic circuit.........................................1682 Procedure for flushing brake hydraulic circuit...............................................................1687 Bleeding air from piston pump................................................................................1692 Bleeding air from work equipment circuit and steering circuit................................................1693 Bleeding air from brake circuit..............................................................................1695 Removal and installation of DT connector pin.................................................................1697 Removal and installation of HD connector pin.................................................................1699 Repair procedure of HD connector pin harness.................................................................1700 Removal and installation of engine assembly..................................................................1701 Removal and installation of damper assembly..................................................................1728 Disassembly and assembly of damper assembly..................................................................1736 Removal and installation of radiator and hydraulic oil cooler assembly.......................................1744 Procedure for disassembly and assembly of MESABI oil cooler assembly ........................................1756 Disassembly and assembly of MESABI oil cooler assembly.......................................................1759 Removal and installation of fuel cooler assembly.............................................................1767 Removal and installation of torque converter and transmission oil cooler assembly............................1771 Removal and installation of bumper and fuel tank assembly....................................................1774 Removal and installation of hood assembly....................................................................1777 Removal and installation of bulkhead assembly................................................................1780 Disassembly and assembly of ECMV.............................................................................1784 Removal and installation of torque converter and transmission assembly.......................................1790 Disconnection and connection of transmission assembly and torque converter assembly..........................1827 Disconnection and connection of torque converter assembly and PTO • transfer assembly........................1836 Disassembly and assembly of torque converter assembly........................................................1839 Disassembly and assembly of modulated clutch assembly........................................................1850 Disassembly and assembly of PTO and transfer assembly........................................................1854 Disconnection and connection of transmission assembly and transfer • parking brake assembly..................1862 Disassembly and assembly of transmission assembly............................................................1870 Disassembly and assembly of transfer assembly................................................................1893 Disassembly and assembly of parking brake assembly...........................................................1899 Removal and installation of parking brake assembly (from machine body).......................................1902 Disassembly and assembly of drive shaft assembly.............................................................1906 Removal and installation of front axle assembly..............................................................1915 Removal and installation of front final drive assembly.......................................................1919 Removal and installation of rear axle assembly...............................................................1923 Disconnection and connection of differential assembly........................................................1939 Disassembly and assembly of differential assembly............................................................1941 Removal and installation of rear final drive assembly........................................................1951 Disassembly and assembly of final drive and brake assembly...................................................1955 Removal and installation of center support assembly..........................................................1967 Disassembly and assembly of center support assembly..........................................................1970 Removal and installation of steering demand valve assembly...................................................1974 Removal and installation of steering cylinder assembly.......................................................1977 Removal and installation of steering pump, control pump and PPC pump assembly................................1982 Removal and installation of switching pump assembly..........................................................1989 Removal and installation of emergency diverter valve assembly................................................1992 Removal and installation of emergency steering pump assembly.................................................1997 Removal and installation of brake accumulator charge valve assembly..........................................2001 Removal and installation of brake oil cooler assembly........................................................2003 Removal and installation of brake oil tank assembly..........................................................2005 Removal and installation of transmission, brake cooling and brake pump assembly..............................2008 Disconnecting procedure for front frame and rear frame.......................................................2012 Removal and installation of center hinge pin.................................................................2013 Removal and installation of work equipment control valve assembly............................................2029 Removal and installation of work equipment pump assembly (Right side)........................................2046 Removal and installation of work equipment pump assembly (Left side).........................................2050 Removal and installation of hydraulic tank and filter case assembly..........................................2053 Removal and installation of bucket cylinder assembly.........................................................2059 Removal and installation of lift cylinder assembly...........................................................2073 Disassembly and assembly of hydraulic cylinder assembly......................................................2090 Removal and installation of work equipment assembly..........................................................2094 Run-in procedure for bucket pin..............................................................................2175 Run-in procedure for lift arm pin............................................................................2177 Removal and installation of air conditioner unit assembly....................................................2180 Removal and installation of operator's cab and floor assembly1...............................................2182 Removal and installation of operator's cab assembly..........................................................2185 Disassembly and assembly of operator's seat assembly.........................................................2186 Removal and installation of controller assemblies............................................................2219 SERVICE KIT PARTS LIST.......................................................................................2221 40 MAINTENANCE STANDARD..........................................................................................2284 ENGINE MOUNT.................................................................................................2285 TRANSMISSION MOUNT ..........................................................................................2286 RADIATOR AND OIL COOLER......................................................................................2288 DAMPER ......................................................................................................2290 TORQUE CONVERTER, TRANSMISSION, BRAKE COOLING AND BRAKE PUMP ................................................2291 INPUT TRANSFER. PTO .........................................................................................2292 MODULATED CLUTCH ...........................................................................................2294 TORQUE CONVERTER ............................................................................................2295 TRANSMISSION ................................................................................................2296 TRANSFER ....................................................................................................2299 MAINRELIEF, TORQUE CONVERTER RELIEF VALVE ...................................................................2301 TORQUE CONVERTER REGULATOR VALVE ............................................................................2303 BY-PASS FILL VALVE ..........................................................................................2304 BY-PASS FILL VALVE AND BY-PASS DRAIN VALVE ..................................................................2305 ECMV ........................................................................................................2306 LUBRICATIONG OIL RELIEF VALVE ...............................................................................2308 DRIVE SHAFT .................................................................................................2309 CENTER SUPPORT ..............................................................................................2310 DIFFERENTIAL ................................................................................................2311 FINAL DRIVE..................................................................................................2314 AXLE MOUNT ..................................................................................................2318 CENTER HINGE PIN ............................................................................................2320 STEERING PUMP ...............................................................................................2323 SWITCH PUMP .................................................................................................2324 STEERING DEMAND VALVE .......................................................................................2325 DIVERTER VALVE ..............................................................................................2327 STEERING CYLINDER MOUNT .....................................................................................2328 EMERGENCY STEERING PUMP .....................................................................................2330 BRAKE VALVE .................................................................................................2331 SLACK ADJUSTER ..............................................................................................2333 BRAKE .......................................................................................................2334 PARDING BRAKE ...............................................................................................2336 WORK EQUIPMENT PUMP NO.1 ....................................................................................2338 WORK EQUIPMENT PUMP NO.2 ....................................................................................2339 PPC VALVE ...................................................................................................2340 PPC RELIEF VALVE ............................................................................................2342 PUMP CONTROL RELIEF VALVE ...................................................................................2343 MAIN CONTROL VALVE ..........................................................................................2344 HYDRAULIC CYLINDER ..........................................................................................2346 BUCKET POSITIONER AND REMOTE POSITIONER .....................................................................2349 BUCKET LINKAGE ..............................................................................................2350 90 OTHERS........................................................................................................2355 TRANSMISSION HYDRAULIC CIRCUIT DIAGRAM.......................................................................2356 BRAKE CIRCUIT DIAGRAM........................................................................................2358 WORK EUIPMENT HYDRAULIC CIRCUIT DIAGRAM (1/2) Serial No. : 50001 – 50084.....................................2361 WORK EUIPMENT HYDRAULIC CIRCUIT DIAGRAM (2/2) Serial No. : 50001 – 50084.....................................2362 WORK EUIPMENT HYDRAULIC CIRCUIT DIAGRAM (1/2) Serial No. : 50085 and up......................................2363 WORK EUIPMENT HYDRAULIC CIRCUIT DIAGRAM (2/2) Serial No. : 50085 and up......................................2364 ELECTRICAL CIRCUIT DIAGRAM (1/7) Serial No. : 50001 – 50038 (Standard specification machine).................2365 ELECTRICAL CIRCUIT DIAGRAM (1/7) Serial No. : 50001 – 50038 (Trainer seat specification machine).............2366 ELECTRICAL CIRCUIT DIAGRAM (2/7) Serial No. : 50001 – 50038..................................................2367 ELECTRICAL CIRCUIT DIAGRAM (3/7) Serial No. : 50001 – 50038..................................................2368 ELECTRICAL CIRCUIT DIAGRAM (4/7) Serial No. : 50001 – 50038..................................................2369 ELECTRICAL CIRCUIT DIAGRAM (5/7) Serial No. : 50001 – 50038..................................................2370 ELECTRICAL CIRCUIT DIAGRAM (6/7) Serial No. : 50001 – 50038..................................................2371 ELECTRICAL CIRCUIT DIAGRAM (7/7) Serial No. : 50001 – 50038..................................................2372 ELECTRICAL CIRCUIT DIAGRAM (1/7) Serial No. : 50039 – 50074..................................................2373 ELECTRICAL CIRCUIT DIAGRAM (2/7) Serial No. : 50039 – 50074..................................................2374 ELECTRICAL CIRCUIT DIAGRAM (3/7) Serial No. : 50039 – 50074..................................................2375 ELECTRICAL CIRCUIT DIAGRAM (4/7) Serial No. : 50039 – 50074..................................................2376 ELECTRICAL CIRCUIT DIAGRAM (5/7) Serial No. : 50039 – 50074..................................................2377 ELECTRICAL CIRCUIT DIAGRAM (6/7) Serial No. : 50039 – 50074..................................................2378 ELECTRICAL CIRCUIT DIAGRAM (7/7) Serial No. : 50039 – 50074..................................................2379 ELECTRICAL CIRCUIT DIAGRAM (1/8) Serial No. : 50075 – 50084, 50086, 50087....................................2380 ELECTRICAL CIRCUIT DIAGRAM (2/8) Serial No. : 50075 – 50084, 50086, 50087....................................2381 ELECTRICAL CIRCUIT DIAGRAM (3/8) Serial No. : 50075 – 50084, 50086, 50087....................................2382 ELECTRICAL CIRCUIT DIAGRAM (4/8) Serial No. : 50075 – 50084, 50086, 50087....................................2383 ELECTRICAL CIRCUIT DIAGRAM (5/8) Serial No. : 50075 – 50084, 50086, 50087....................................2384 ELECTRICAL CIRCUIT DIAGRAM (6/8) Serial No. : 50075 – 50084, 50086, 50087....................................2385 ELECTRICAL CIRCUIT DIAGRAM (7/8) Serial No. : 50075 – 50084, 50086, 50087....................................2386 ELECTRICAL CIRCUIT DIAGRAM (8/8) Serial No. : 50075 – 50084, 50086, 50087....................................2387 ELECTRICAL CIRCUIT DIAGRAM (1/11) Serial No. : 50085, 50088 and up...........................................2388 ELECTRICAL CIRCUIT DIAGRAM (2/11) Serial No. : 50085, 50088 and up...........................................2389 ELECTRICAL CIRCUIT DIAGRAM (3/11) Serial No. : 50085, 50088 and up...........................................2390 ELECTRICAL CIRCUIT DIAGRAM (4/11) Serial No. : 50085, 50088 and up...........................................2391 ELECTRICAL CIRCUIT DIAGRAM (5/11) Serial No. : 50085, 50088 and up...........................................2392 ELECTRICAL CIRCUIT DIAGRAM (6/11) Serial No. : 50085, 50088 and up...........................................2393 ELECTRICAL CIRCUIT DIAGRAM (7/11) Serial No. : 50085, 50088 and up...........................................2394 ELECTRICAL CIRCUIT DIAGRAM (8/11) Serial No. : 50085, 50088 and up...........................................2395 ELECTRICAL CIRCUIT DIAGRAM (9/11) Serial No. : 50085, 50088 and up...........................................2396 ELECTRICAL CIRCUIT DIAGRAM (10/11) Serial No. : 50085, 50088 and up..........................................2397 ELECTRICAL CIRCUIT DIAGRAM (11/11) Serial No. : 50085, 50088 and up..........................................2398
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KOMATSU WA1200-3 WHEEL LOADER SERVICE REPAIR MANUAL – PDF DOWNLOAD:
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