Komatsu WA120-3L, WA120L-3 Wheel Loader Shop Manual
FILE DETAILS:
Komatsu WA120-3L, WA120L-3 Wheel Loader Shop Manual
Brands: Komatsu
Equipment Type: Wheel Loader
Manuals Type: Shop Manual
Machine Model: WA120-3L, WA120L-3
Serial Number: A30001 and up, 54001-54103
Book Code: CEBM002002
Language: English
Pages: 585
File Format: Portable Document Format (PDF)
VIDEO PREVIEW OF THE MANUAL:
IMAGES PREVIEW OF THE MANUAL:
DESCRIPTION:
Komatsu WA120-3L, WA120L-3 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 sections. These sections are further divided into each main group of components.
GENERAL:
This section lists the general machine dimensions, performance specifications, component weights, and fuel, coolant and lubricant specification charts.
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.
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” to “Causes” are also included in this section.
DISASSEMBLY AND ASSEMBLY:
This section explains the order to be followed when removing, installing, disassembling or assembling each component, as well as precautions to be taken for these operations.
MAINTENANCE STANDARD:
This section gives the judgement standards when inspecting disassembled parts.
TABLE OF CONTENTS:
Komatsu WA120-3L, WA120L-3 Wheel Loader Shop Manual
MAIN MENU.......................................................................................... 0 CONTENTS........................................................................................... 2 01 GENERAL......................................................................................... 21 SPECIFICATION DRAWINGS......................................................................... 22 SPECIFICATIONS................................................................................. 23 WEIGHT TABLE................................................................................... 26 FUEL, COOLANT, AND LUBRICANTS.................................................................. 27 ENGINE OIL SPECIFICATIONS...................................................................... 28 DIESEL FUEL SPECIFICATIONS..................................................................... 29 COOLANT SPECIFICATIONS......................................................................... 30 10 STRUCTURE AND FUNCTION.......................................................................... 35 POWER TRAIN.................................................................................... 39 POWER TRAIN SYSTEM............................................................................. 40 TORQUE CONVERTER, TRANSMISSION PIPING.......................................................... 42 TRANSMISSION HYDRAULIC SYSTEM DIAGRAM.......................................................... 43 TRANSMISSION HYDRAULIC CIRCUIT DIAGRAM......................................................... 44 TORQUE CONVERTER............................................................................... 45 TORQUE CONVERTER OIL FILTER.................................................................... 47 TRANSMISSION................................................................................... 48 CLUTCH..................................................................................... 50 REVERSE CLUTCH......................................................................... 50 FORWARD, 2ND CLUTCH.................................................................... 51 3RD, 4TH CLUTCH........................................................................ 51 Operation of clutch.................................................................... 52 FORWARD 1ST................................................................................ 53 FORWARD 2ND................................................................................ 54 FORWARD 3RD................................................................................ 55 FORWARD 4TH................................................................................ 56 REVERSE 1ST................................................................................ 57 TRANSMISSION CONTROL VALVE..................................................................... 58 UPPER VALVE................................................................................ 59 LOWER VALVE................................................................................ 60 TRANSMISSION SOLENOID VALVE................................................................ 61 TORQUE CONVERTER OUTLET PORT VALVE......................................................... 62 PILOT REDUCING VALVE....................................................................... 63 TRANSMISSION SOLENOID VALVE................................................................ 64 PRIORITY VALVE............................................................................. 65 MAIN REGULATOR VALVE....................................................................... 66 QUICK RETURN VALVE......................................................................... 67 MODULATION FILL VALVE...................................................................... 71 DIRECTIONAL SELECTOR SPOOL................................................................. 73 EMERGENCY MANUAL SPOOL..................................................................... 74 OPERATION OF FORWARD 1ST................................................................... 75 ACCUMULATOR VALVE.......................................................................... 77 TRANSMISSION CONTROL........................................................................... 79 DRIVE SHAFT.................................................................................... 80 AXLE........................................................................................... 81 FRONT AXLE................................................................................. 81 FRONT DIFFERENTIAL......................................................................... 82 REAR AXLE.................................................................................. 83 REAR DIFFERENTIAL.......................................................................... 84 Outline.................................................................................... 85 TORQUE PROPORTIONING DIFFERENTIAL.......................................................... 86 FINAL DRIVE.................................................................................... 87 AXLE MOUNT..................................................................................... 88 CENTER HINGE PIN............................................................................... 90 STEERING PIPING................................................................................ 91 STEERING COLUMN................................................................................ 92 PRIORITY VALVE ................................................................................ 93 STEERING VALVE (ORBIT-ROLL).................................................................... 96 Operation.................................................................................. 98 1. Steering wheel at neutral........................................................... 98 2. Steering wheel turned (turning to left).............................................100 CONNECTION BETWEEN HAND PUMP AND SLEEVE....................................................102 BRAKE PIPING...................................................................................104 BRAKE CONTROL..................................................................................105 BRAKE BOOSTER..................................................................................106 BRAKE..........................................................................................110 PARKING BRAKE CONTROL..........................................................................112 PARKING BRAKE..................................................................................113 HYDRAULIC PIPING...............................................................................114 WORK EQUIPMENT HYDRAULIC SYSTEM DIAGRAM........................................................116 WORK EQUIPMENT HYDRAULIC CIRCUIT DIAGRAM.......................................................117 HYDRAULIC TANK.................................................................................118 OIL FILTER BYPASS VALVE....................................................................119 BREATHER...................................................................................120 MAIN CONTROL VALVE.............................................................................122 2-SPOOL VALVE..............................................................................122 3-SPOOL VALVE..............................................................................124 RELIEF VALVE...............................................................................126 SAFETY VALVE (WITH SUCTION)................................................................127 SUCTION VALVE..............................................................................128 Boom and bucket spool at NEUTRAL position..................................................129 Boom spool at RAISE position...............................................................130 Boom spool at LOWER position...............................................................131 Boom spool at FLOAT position...............................................................132 Bucket spool at TILT BACK position.........................................................133 Bucket spool at DUMP position..............................................................134 WORK EQUIPMENT LEVER LINKAGE...................................................................135 WORK EQUIPMENT LINKAGE.........................................................................136 BUCKET.........................................................................................138 BUCKET POSITIONER AND BOOM KICK-OUT............................................................140 BUCKET POSITIONER..........................................................................141 BOOM KICK-OUT..............................................................................141 PROXIMITY SWITCH...............................................................................142 OPERATION OF THE PROXIMITY SWITCH..........................................................143 Bucket TILT BACK switch................................................................143 Boom RAISE switch......................................................................143 Action of the proximity switch.............................................................143 ROPS CAB.......................................................................................144 AIR CONDITIONER................................................................................146 AIR CONDITIONER AND HEATER PIPING..........................................................146 ELECTRIC CIRCUIT DIAGRAM...................................................................147 E.C.S.S. (ELECTRONIC CONTROLLED SUSPENSION SYSTEM).............................................148 E.C.S.S. HYDRAULIC, ELECTRICAL CIRCUIT DIAGRAM.............................................149 OPERATION..................................................................................150 ELECTRICAL WIRING ILLUSTRATION.................................................................153 ELECTRICAL WIRING DIAGRAM (1/3)................................................................154 CENTRAL PANEL (CLUSTER GAUGE)..................................................................161 SENSOR.........................................................................................162 ENGINE OIL PRESSURE........................................................................162 BRAKE OIL LEVEL............................................................................162 ENGINE STARTING CIRCUIT........................................................................163 ENGINE STOP CIRCUIT............................................................................164 AUTOMATIC PREHEATING CIRCUIT...................................................................165 QUICK HEATING SYSTEM (Q.H.S.)..............................................................165 Q.H.S. CONTROLLER..........................................................................167 HEATER RELAY...............................................................................167 RIBBON HEATER..............................................................................168 Q.H.S. WATER TEMPERATURE SENSOR............................................................168 ELECTRICAL TRANSMISSION CONTROL................................................................169 COMBINATION SWITCH.............................................................................170 TRANSMISSION CUT-OFF FUNCTION..................................................................171 PARKING BRAKE FUNCTION.........................................................................173 KICK-DOWN SWITCH...............................................................................174 KICK-DOWN SWITCH...........................................................................174 KICK DOWN ELECTRIC CIRCUIT DIAGRAM.........................................................175 KICK-DOWN SWITCH OPERATED..................................................................176 KICK-DOWN SWITCH ACTUATION - CANCELED (1).................................................177 KICK-DOWN SWITCH ACTUATION - CANCELED (2)..................................................178 KICK-DOWN SWITCH ACTUATION - CANCELED (3)..................................................179 20 TESTING, ADJUSTING AND TROUBLESHOOTING..........................................................180 TESTING AND ADJUSTING..........................................................................183 STANDARD VALUE TABLE FOR ENGINE - In Chassis...................................................185 STANDARD VALUE TABLE FOR CHASSIS...............................................................187 TOOLS FOR TESTING, ADJUSTING & TROUBLESHOOTING.................................................191 MEASURING ENGINE SPEEDS....................................................................193 MEASURING ENGINE LUBRICATING OIL PRESSURE..................................................194 MEASURING FUEL FILTER INLET RESTRICTION....................................................194 MEASURING BLOW-BY PRESSURE.................................................................194 MEASURING COMPRESSION PRESSURE.............................................................195 MEASURING EXHAUST COLOR....................................................................196 MEASURING COOLANT TEMPERATURE..............................................................197 MEASURING AND ADJUSTING VALVE CLEARANCE....................................................197 MEASURING ACCELERATOR PEDAL................................................................198 OPERATING FORCE OF ACCELERATOR PEDAL...................................................198 OPERATING ANGLE OF ACCELERATOR PEDAL...................................................199 MEASURING OPERATING FORCE, AND TRAVEL OF SPEED LEVER.......................................200 OPERATING FORCE OF SPEED LEVER.........................................................200 TRAVEL OF SPEED LEVER..................................................................200 MEASURING STALL SPEEDS.....................................................................201 TORQUE CONVERTER STALL SPEED...........................................................201 HYDRAULIC STALL SPEED..................................................................202 FULL STALL SPEED.......................................................................202 MEASURING TORQUE CONVERTER, TRANSMISSION OIL PRESSURE......................................203 METHOD OF OPERATING EMERGENCY MANUAL SPOOL.................................................205 TESTING AND ADJUSTING STEERING WHEEL.......................................................207 MEASURING PROCEDURE....................................................................207 MEASURING OPERATING FORCE OF STEERING WHEEL............................................208 MEASURING OPERATING TIME FOR STEERING WHEEL............................................209 MEASURING STEERING OIL PRESSURE........................................................210 METHOD OF MEASURING MAIN RELIEF PRESSURE...............................................210 METHOD OF ADJUSTING MAIN RELIEF PRESSURE...............................................211 MEASURING OPERATING FORCE, TRAVEL OF BRAKE PEDAL...........................................212 TESTING AND ADJUSTING BRAKE PEDAL LINKAGE..................................................213 MEASURING BRAKE PERFORMANCE................................................................215 MEASURING BRAKE OIL PRESSURE...............................................................216 TESTING FOR BRAKE DISC WEAR................................................................217 BLEEDING AIR FROM BRAKE SYSTEM.............................................................218 MEASURING PARKING BRAKE PERFORMANCE........................................................219 TESTING AND ADJUSTING PARKING BRAKE LINKAGE................................................220 TESTING PARKING BRAKE DISC WEAR............................................................221 MEASURING PARKING BRAKE DISC WEAR..........................................................222 MEASURING WORK EQUIPMENT CONTROL LEVER.....................................................223 MEASURING STROKE OF WORK EQUIPMENT VALVE SPOOL.............................................226 MEASURING WORK EQUIPMENT HYDRAULIC PRESSURE................................................227 MEASURING WORK EQUIPMENT...................................................................229 TESTING AND ADJUSTING BUCKET POSITIONER....................................................232 TESTING AND ADJUSTING BOOM KICK-OUT (IF EQUIPPED)..........................................233 TROUBLESHOOTING................................................................................236 POINTS TO REMEMBER WHEN TROUBLESHOOTING....................................................237 SEQUENCE OF EVENTS IN TROUBLESHOOTING......................................................238 PRECAUTIONS WHEN CARRYING OUT MAINTENANCE..................................................239 PRECAUTIONS WHEN HANDLING ELECTRIC EQUIPMENT...........................................239 POINTS TO REMEMBER WHEN TROUBLESHOOTING ELECTRIC CIRCUITS..............................244 POINTS TO REMEMBER WHEN HANDLING HYDRAULIC EQUIPMENT...................................245 CHECKS BEFORE TROUBLESHOOTING..............................................................247 HANDLING CONNECTORS........................................................................248 PRECAUTIONS WHEN TROUBLESHOOTING...........................................................249 PREVENTING RECURRENCE OF TROUBLE...........................................................251 METHOD OF USING TROUBLESHOOTING CHARTS.....................................................253 1. Category of troubleshooting code number.............................................253 2. Method of using troubleshooting table for each troubleshooting mode.................253 3. Using troubleshooting chart for engine related failure..............................255 TROUBLESHOOTING OF ENGINE SYSTEM...........................................................262 S-1 STARTING PERFORMANCE IS POOR (Starting always takes time)..........................263 S-2 Engine does not start..............................................................264 S-3 Engine does not pick up smoothly (Follow up is poor)...............................267 S-4 Engine stops during operations.....................................................268 S-5 Engine does not rotate smoothly (hunting)..........................................269 S-6 Engine lacks output (no power).....................................................270 S-7 Exhaust gas is black (incomplete combustion).......................................271 S-8 Oil consumption is excessive (or exhaust gas is blue)..............................272 S-9 Oil becomes contaminated quickly...................................................273 S-10 Fuel consumption is excessive.....................................................274 S-11 Oil is in cooling water, or water spurts back, or water level goes down...........275 S-12 Oil pressure lamp lights up (drop in oil pressure)................................276 S-13 Oil level rises...................................................................277 S-14 Water temperature becomes too high................................................278 S-15 Abnormal noise is made............................................................279 S-16 Vibration is excessive............................................................280 TROUBLESHOOTING OF HYDRAULIC AND MECHANICAL SYSTEM.........................................282 POWER TRAIN................................................................................283 T-1 Machine does not start.............................................................283 T-2 Travel speed is slow, thrusting power is weak, lacks power on slopes...............285 T-3 Excessive shock when starting machine or shifting gear.............................287 T-4 Excessive time lag when starting machine or shifting gear..........................288 T-5 Torque converter oil temperature is high...........................................289 STEERING SYSTEM............................................................................290 S-1 Steering wheel does not turn.......................................................290 S-2 Steering is heavy..................................................................291 S-3 Steering wheel shakes or there is excessive shock..................................292 S-4 Deviates to one side when traveling................................................293 S-5 Turning radius is different between left and right.................................293 S-6 Excessive shock to machine when steering wheel is turned fully to left or right....293 BRAKE SYSTEM...............................................................................294 A-1 Brakes do not work or braking effect is poor.......................................294 A-2 Brake is not released, brake drags.................................................295 WORK EQUIPMENT.............................................................................296 H-1 Boom does not rise.................................................................296 H-2 Boom movement is slow or boom lacks lifting power..................................297 H-3 When boom is raised, it moves slowly at a certain height...........................298 H-4 Bucket cannot be pushed with boom cylinder (bucket floats).........................298 H-5 Excessive hydraulic drift of boom..................................................298 H-6 Boom shakes during operation.......................................................298 H-7 Boom drops momentarily when control lever is operated from HOLD to RAISE...........299 H-8 Bucket does not tilt back..........................................................300 H-9 Bucket movement is slow or tilt-back lacks power...................................301 H-10 Bucket movement becomes slow during tilt-back operation...........................302 H-11 Bucket cannot be pushed with bucket cylinder......................................302 H-12 Excessive hydraulic drift of bucket...............................................302 H-13 Bucket shakes during loading operation (Main control valve at HOLD)...............303 H-14 Bucket dumps momentarily when control lever is operated from HOLD to TILT.........303 H-15 Boom, bucket control levers are heavy or do not move smoothly.....................304 AIR CONDITIONER / HEATER (EAGLE)...........................................................305 TROUBLESHOOTING........................................................................306 WIRING DIAGRAM ........................................................................310 30 DISASSEMBLY AND ASSEMBLY........................................................................311 METHOD OF USING MANUAL.........................................................................315 1. When removing or installing unit assemblies.............................................315 2. General precautions.....................................................................315 3. Listing of special tools................................................................315 PRECAUTIONS WHEN CARRYING OUT OPERATION........................................................316 1. Precautions when carrying out removal work..............................................316 2. Precautions when carrying out installation work.........................................317 3. Precautions when completing the operations..............................................318 SPECIAL TOOL LIST..............................................................................319 STARTING MOTOR ASSEMBLY........................................................................321 REMOVAL....................................................................................321 INSTALLATION...............................................................................321 ALTERNATOR ASSEMBLY............................................................................322 REMOVAL....................................................................................322 INSTALLATION...............................................................................322 FUEL INJECTION PUMP............................................................................323 REMOVAL....................................................................................323 INSTALLATION...............................................................................323 ENGINE OIL COOLER..............................................................................324 REMOVAL....................................................................................324 INSTALLATION...............................................................................324 WATER PUMP.....................................................................................325 REMOVAL....................................................................................325 INSTALLATION...............................................................................325 NOZZLE HOLDER..................................................................................326 REMOVAL....................................................................................326 INSTALLATION...............................................................................326 THERMOSTAT.....................................................................................327 REMOVAL....................................................................................327 INSTALLATION...............................................................................327 TURBOCHARGER...................................................................................328 REMOVAL....................................................................................328 INSTALLATION...............................................................................328 CYLINDER HEAD..................................................................................329 REMOVAL....................................................................................329 INSTALLATION...............................................................................329 RADIATOR.......................................................................................330 REMOVAL....................................................................................330 INSTALLATION...............................................................................333 ENGINE.........................................................................................334 REMOVAL....................................................................................334 INSTALLATION...............................................................................341 ENGINE HOOD....................................................................................342 REMOVAL....................................................................................342 INSTALLATION...............................................................................343 EXHAUST MUFFLER................................................................................344 REMOVAL....................................................................................344 INSTALLATION...............................................................................344 AIR CLEANER....................................................................................345 REMOVAL....................................................................................345 INSTALLATION...............................................................................345 TORQUE CONVERTER CHARGING PUMP.................................................................347 REMOVAL....................................................................................347 INSTALLATION...............................................................................347 TORQUE CONVERTER, TRANSMISSION.................................................................348 REMOVAL....................................................................................348 INSTALLATION...............................................................................355 TORQUE CONVERTER ASSEMBLY......................................................................356 DISASSEMBLY................................................................................356 ASSEMBLY...................................................................................358 TRANSMISSION...................................................................................360 DISASSEMBLY................................................................................360 PARKING BRAKE..............................................................................369 DISASSEMBLY............................................................................369 ASSEMBLY...............................................................................371 ASSEMBLY...................................................................................374 TRANSMISSION CLUTCH PACK.......................................................................386 I. DISASSEMBLY OF 1ST, REVERSE CLUTCH......................................................386 II. DISASSEMBLY OF FORWARD, 2ND CLUTCH PACK................................................388 Ill. DISASSEMBLY OF 3RD, 4TH CLUTCH PACK...................................................390 ASSEMBLY OF CLUTCH PACK........................................................................392 l. ASSEMBLY OF 1ST, REVERSE CLUTCH PACK....................................................392 II. ASSEMBLY OF FORWARD, 2ND CLUTCH PACK...................................................397 Ill. ASSEMBLY OF 3RD, 4TH CLUTCH PACK......................................................401 TRANSMISSION CONTROL VALVE.....................................................................406 REMOVAL....................................................................................406 INSTALLATION...............................................................................407 DISASSEMBLY................................................................................408 ASSEMBLY...................................................................................410 TRANSMISSION SOLENOID VALVE....................................................................412 TRANSMISSION ACCUMULATOR VALVE.................................................................413 DISASSEMBLY................................................................................413 ASSEMBLY...................................................................................414 DRIVE SHAFT....................................................................................416 DISASSEMBLY................................................................................416 ASSEMBLY...................................................................................418 FRONT AXLE.....................................................................................419 REMOVAL....................................................................................419 INSTALLATION...............................................................................420 REAR AXLE......................................................................................421 REMOVAL....................................................................................421 INSTALLATION...............................................................................425 DIFFERENTIAL...................................................................................430 DISASSEMBLY................................................................................430 ASSEMBLY...................................................................................434 AXLE HOUSING...................................................................................444 DISASSEMBLY................................................................................444 ASSEMBLY...................................................................................449 CENTER HINGE PIN...............................................................................457 REMOVAL....................................................................................457 INSTALLATION...............................................................................465 STEERING VALVE.................................................................................474 REMOVAL....................................................................................474 INSTALLATION...............................................................................476 DISASSEMBLY ...............................................................................477 DISASSEMBLY OF ROTOR...................................................................477 DISASSEMBLY OF CONTROL SIDE............................................................478 ASSEMBLY...................................................................................480 ASSEMBLY OF ROTOR......................................................................482 STEERING CYLINDER..............................................................................485 REMOVAL....................................................................................485 INSTALLATION...............................................................................486 BRAKE BOOSTER..................................................................................487 REMOVAL....................................................................................487 INSTALLATION...............................................................................489 DISASSEMBLY................................................................................490 ASSEMBLY...................................................................................493 PARKING BRAKE..................................................................................498 REMOVAL....................................................................................498 INSTALLATION...............................................................................500 HYDRAULIC TANK.................................................................................501 REMOVAL....................................................................................501 INSTALLATION...............................................................................502 HYDRAULIC FILTER...............................................................................503 REMOVAL....................................................................................503 INSTALLATION...............................................................................503 HYDRAULIC STEERING PUMP........................................................................504 REMOVAL....................................................................................504 INSTALLATION...............................................................................505 MAIN CONTROL VALVE.............................................................................506 REMOVAL....................................................................................506 INSTALLATION...............................................................................508 DISASSEMBLY................................................................................509 ASSEMBLY...................................................................................511 BUCKET CYLINDER................................................................................514 REMOVAL....................................................................................514 INSTALLATION...............................................................................515 BOOM CYLINDER..................................................................................516 REMOVAL....................................................................................516 INSTALLATION...............................................................................517 HYDRAULIC CYLINDERS............................................................................518 DISASSEMBLY................................................................................518 ASSEMBLY...................................................................................520 WORK EQUIPMENT.................................................................................522 REMOVAL....................................................................................522 INSTALLATION...............................................................................525 FUEL TANK......................................................................................528 REMOVAL....................................................................................528 INSTALLATION .............................................................................529 COUNTERWEIGHTS.................................................................................530 REMOVAL OF LEFT AND RIGHT SIDE COUNTERWEIGHTS..............................................530 INSTALLATION OF LEFT AND RIGHT SIDE COUNTERWEIGHTS.........................................530 REMOVAL OF REAR COUNTERWEIGHT..............................................................530 INSTALLATION OF REAR COUNTERWEIGHT.........................................................531 INSTRUMENT PANEL...............................................................................532 REMOVAL....................................................................................532 INSTALLATION...............................................................................532 40 MAINTENANCE STANDARD............................................................................533 ENGINE MOUNT, TRANSMISSION MOUNT...............................................................535 TORQUE CONVERTER CHARGING PUMP.................................................................536 TORQUE CONVERTER ..............................................................................537 TRANSMISSION...................................................................................538 TRANSMISSION (1/3).........................................................................538 TRANSMISSION (2/3).........................................................................540 TRANSMISSION (3/3).........................................................................542 REVERSE, 1ST CLUTCH........................................................................544 FORWARD , 2ND CLUTCH.......................................................................546 3RD, 4TH CLUTCH............................................................................548 TRANSMISSION CONTROL VALVE.....................................................................550 LOWER VALVE................................................................................552 SOLENOID VALVE.............................................................................553 ACCUMULATOR VALVE..............................................................................554 DRIVE SHAFT....................................................................................555 DIFFERENTIAL...................................................................................557 DIFFERENTIAL (1/2).........................................................................557 DIFFERENTIAL (2/2).........................................................................558 FINAL DRIVE....................................................................................560 AXLE MOUNT.....................................................................................562 CENTER HINGE PIN...............................................................................564 STEERING COLUMN................................................................................566 STEERING CYLINDER MOUNT........................................................................567 PRIORITY VALVE.................................................................................568 BRAKE BOOSTER..................................................................................569 BRAKE..........................................................................................570 PARKING BRAKE..................................................................................571 HYDRAULIC PUMP.................................................................................572 MAIN CONTROL VALVE.............................................................................574 2-SPOOL VALVE..............................................................................574 3-SPOOL VALVE..............................................................................576 HYDRAULIC CYLINDER.............................................................................578 WORK EQUIPMENT LINKAGE.........................................................................580 BUCKET.........................................................................................582 BUCKET POSITIONER AND BOOM KICK-OUT............................................................583
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