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KOMATSU BR350JG-1 SERVICE REPAIR MANUAL (SN:1005 & UP) KOMATSU BR350JG-1 – PDF DOWNLOAD
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- KOMATSU BR350JG-1 SERVICE REPAIR MANUAL
- SERIAL NUMBER:1005 & UP
- PUBLICATION NUMBER:SEBM013803
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Description
KOMATSU BR350JG-1 SERVICE REPAIR MANUAL (SN:1005 & UP) KOMATSU BR350JG-1
KOMATSU BR350JG-1 SERVICE REPAIR MANUAL (SN:1005 & UP) KOMATSU BR350JG-1 – PDF DOWNLOAD:
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DESCRIPTION:
KOMATSU BR350JG-1 SERVICE REPAIR MANUAL (SN:1005 & UP) KOMATSU BR350JG-1
- This shop manual has been prepared as an aid to improve the quality of repairs by giving the serviceman an accurate understanding of the product and by showing him the correct way to perform repairs and make judgements. Make sure you understand the contents of this manual and use it to full effect at every opportunity.
- This shop manual mainly contains the necessary technical information for operations performed in a service workshop. For ease of understanding, the manual is divided into the following chapters; these chapters are further divided into the each main group of components.
- STRUCTURE AND FUNCTION
This section explains the structure and function of each component. It serves not only to give an understanding of the structure, but also serves as reference material for troubleshooting. In addition, this section may contain hydraulic circuit diagrams, electric circuit diagrams, and maintenance standards. - TESTING AND ADJUSTING
This section explains checks to be made before and after performing repairs, as well as adjustments to be made at completion of the checks and repairs. Troubleshooting charts correlating “Problems” with “Causes” are also included in this section. - DISASSEMBLY AND ASSEMBLY
This section explains the procedures for removing, installing, disassembling and assembling each component, as well as precautions for them. - MAINTENANCE STANDARD
This section gives the judgment standards for inspection of disassembled parts. The contents of this section may be described in STRUCTURE AND FUNCTION. - OTHERS
This section mainly gives hydraulic circuit diagrams and electric circuit diagrams. In addition, this section may give the specifications of attachments and options together.
TABLE OF CONTENTS:
KOMATSU BR350JG-1 SERVICE REPAIR MANUAL (SN:1005 & UP) KOMATSU BR350JG-1
MAIN MENU....................................................................................................................................... 0 COVER........................................................................................................................................... 1 CONTENTS........................................................................................................................................ 2 SAFETY.......................................................................................................................................... 7 FOREWORD........................................................................................................................................ 9 HOW TO READ THE SHOP MANUAL ................................................................................................................ 10 HOISTING INSTRUCTIONS ...................................................................................................................... 11 COATING MATERIALS .......................................................................................................................... 14 STANDARD TIGHTENING TORQUE ................................................................................................................. 16 ELECTRIC WIRE CODE ......................................................................................................................... 19 CONVERSION TABLE ........................................................................................................................... 20 UNITS....................................................................................................................................... 26 01 GENERAL...................................................................................................................................... 27 DIMENSION................................................................................................................................... 28 SPECIFICATIONS.............................................................................................................................. 29 WEIGHT TABLE ............................................................................................................................... 37 TABLE OF OIL AND COOLANT CAPACITIES ........................................................................................................ 38 10 STRUCTURE AND FUNCTION....................................................................................................................... 40 PARTS RELATED TO ENGINE .................................................................................................................... 41 RADIATOR, OIL COOLER ....................................................................................................................... 42 POWER TRAIN DIAGRAM ........................................................................................................................ 43 DRIVE SYSTEMS FOR EACH COMPONENT............................................................................................................ 44 FINAL DRIVE ................................................................................................................................ 45 TRACK FRAME, RECOIL SPRING ................................................................................................................. 46 HYDRAULIC PIPING DIAGRAM ................................................................................................................... 47 HYDRAULIC CIRCUIT DIAGRAM .................................................................................................................. 48 HYDRAULIC TANK, HYDRAULIC FILTER ........................................................................................................... 50 HYDRAULIC PUMP ............................................................................................................................. 51 CONTROL VALVE .............................................................................................................................. 68 SELF-REDUCING PRESSURE VALVE ............................................................................................................... 74 CLSS ....................................................................................................................................... 79 CRUSHER MOTOR .............................................................................................................................. 96 TRAVEL MOTOR................................................................................................................................ 99 TRAVEL PPC VALVE............................................................................................................................105 ON/OFF VALVE ...............................................................................................................................109 EPC VALVE ..................................................................................................................................111 ELECTRIC CIRCUIT DIAGRAM ...................................................................................................................114 ENGINE CONTROL SYSTEM ......................................................................................................................116 ENGINE THROTTLE • PUMP CONTROLLER...........................................................................................................120 MACHINE MONITOR SYSTEM......................................................................................................................132 INPUT/OUTPUT SYSTEM STRUCTURE DIAGRAM ......................................................................................................138 FEEDER AUTOMATIC CONTROL SYSTEM WHEN THERE IS CRUSHER OVERLOAD .............................................................................139 EMERGENCY STOP SYSTEM FOR CONVEYOR, OPTION OVERLOAD ........................................................................................141 BELT CONVEYOR MACHINERY ....................................................................................................................142 BELT CONVEYOR MOTOR ........................................................................................................................143 PRIMARY BELT CONVEYOR ......................................................................................................................144 GRIZZLY FEEDER .............................................................................................................................145 CRUSHER ....................................................................................................................................146 VIBRATOR ...................................................................................................................................153 20 TESTING AND ADJUSTING........................................................................................................................154 STANDARD VALUE TABLE........................................................................................................................155 STANDARD VALUE TABLE FOR ENGINE ........................................................................................................155 STANDARD VALUE TABLE FOR CHASSIS .......................................................................................................156 STANDARD VALUE TABLE FOR ELECTRICAL PARTS ..............................................................................................160 TESTING AND ADJUSTING.......................................................................................................................163 TOOLS FOR TESTING, ADJUSTING, AND TROUBLESHOOTING ......................................................................................164 MEASURING ENGINE SPEED .................................................................................................................165 MEASURING EXHAUST GAS COLOR ............................................................................................................166 ADJUSTING VALVE CLEARANCE ..............................................................................................................167 MEASURING COMPRESSION PRESSURE .........................................................................................................168 MEASURING BLOW-BY PRESSURE .............................................................................................................168 TESTING AND ADJUSTING FUEL INJECTION TIMING ............................................................................................169 MEASURING ENGINE OIL PRESSURE ..........................................................................................................170 TESTING AND ADJUSTING FAN BELT TENSION .................................................................................................171 MEASURING ENGINE SPEED SENSOR...........................................................................................................172 TESTING AND ADJUSTING GOVERNOR MOTOR LEVER STROKE ......................................................................................173 TESTING AND ADJUSTING HYDRAULIC PRESSURE IN WORK EQUIPMENT, TRAVEL CIRCUIT..............................................................174 TESTING AND ADJUSTING PC VALVE OUTPUT PRESSURE (SERVO PISTON INPUT PRESSURE) ...........................................................177 MEASURING CONTROL CIRCUIT OIL PRESSURE (PRESSURE WHEN SELF PRESSURE IS REDUCED) ........................................................179 TESTING AND ADJUSTING CONTROL PUMP CIRCUIT OIL PRESSURE ................................................................................180 MEASURING SOLENOID VALVE OUTPUT PRESSURE ...............................................................................................182 TESTING AND ADJUSTING JAW CRUSHER ......................................................................................................183 TESTING AND ADJUSTING OUTLET........................................................................................................184 METHOD OF ADJUSTING OUTLET CLEARANCE (MACHINES EQUIPPED WITH DOUBLE-ACTING CYLINDER)................................................188 CHECKING WEAR OF MAIN WEAR PARTS....................................................................................................191 TESTING AND ADJUSTING TRAVEL DEVIATION .................................................................................................193 MEASURING OIL LEAKAGE ..................................................................................................................194 TESTING AND ADJUSTING TRACK SHOE TENSION ...............................................................................................195 BLEEDING AIR FROM HYDRAULIC CIRCUIT ....................................................................................................196 TROUBLESHOOTING.............................................................................................................................200 POINTS TO REMEMBER WHEN TROUBLESHOOTING ................................................................................................201 SEQUENCE OF EVENTS IN TROUBLESHOOTING ..................................................................................................202 POINTS TO REMEMBER WHEN CARRYING OUT MAINTENANCE .......................................................................................203 CHECKS BEFORE TROUBLESHOOTING ..........................................................................................................211 CONNECTOR TYPES AND MOUNTING LOCATIONS..................................................................................................214 CONNECTOR ARRANGEMENT DIAGRAM (1/4) ....................................................................................................218 CONNECTION TABLE FOR CONNECTOR PIN NUMBERS..............................................................................................226 METHOD OF USING TROUBLESHOOTING CHARTS .................................................................................................235 TROUBLESHOOTING OF ENGINE (S MODE)......................................................................................................237 METHOD OF USING TROUBLESHOOTING CHARTS .............................................................................................238 S-1 Starting performance is poor (starting always takes time).......................................................................242 S-2 Engine does not start...........................................................................................................243 (1) Engine does not turn........................................................................................................243 (2) Engine turns but no exhaust smoke comes out (fuel is not being injected)....................................................244 (3) Exhaust smoke comes out but engine does not start (Fuel is being injected)..................................................245 S-3 Engine does not pick up smoothly (follow-up is poor)............................................................................246 S-4 Engine stops during operations..................................................................................................247 S-5 Engine does not rotate smoothly (hunting).......................................................................................248 S-6 Engine lacks output (no power)..................................................................................................249 S-7 Exhaust smoke is black (incomplete combustion)..................................................................................250 S-8 Oil consumption is excessive (or exhaust smoke is blue).........................................................................251 S-9 Oil becomes contaminated quickly................................................................................................252 S-10 Fuel consumption is excessive..................................................................................................253 S-11 Oil is in cooling water, or water spurts back, or water level goes down........................................................254 S-12 Oil pressure caution lamp lights up (drop in oil pressure).....................................................................255 S-13 Oil level rises (water, fuel in oil)...........................................................................................256 S-14 Water temperature becomes too high (overheating)...............................................................................257 S-15 Abnormal noise is made.........................................................................................................258 S-16 Vibration is excessive.........................................................................................................259 TROUBLESHOOTING OF ELECTRICAL SYSTEM (E MODE)...........................................................................................260 CONTROLLER DISPLAY AND SELF-DIAGNOSTIC FUNCTION.....................................................................................265 ACTION TAKEN BY CONTROLLER WHEN ABNORMALITY OCCURS AND PROBLEM ON MACHINE ..........................................................267 JUDGEMENT TABLE FOR CHASSIS CONTROL RELATED PARTS...................................................................................283 E-1 ABNORMALITY IN CONTROLLER POWER SOURCE SYSTEM...................................................................................285 E-2 ERROR CODE [11] (DISCONNECTION IN OPTION 1 OFF SWITCH) IS DISPLAYED.............................................................287 E-3 ERROR CODE [12] (DISCONNECTION IN OPTION 2 OFF SWITCH) IS DISPLAYED.............................................................288 E-4 ERROR CODE [14] (DISCONNECITON ON oPTION 3 OFF SWITCH) IS DISPLAYED.............................................................289 E-5 ERROR CODE [18] (DISCONNECTION ON OPTION 4 OFF SWITCH) IS DISPLAYED.............................................................290 E-6 ERROR CODE [21] (DISCONNECTION IN CRUSHER OFF SWITCH) IS DISPLAYED..............................................................291 E-7 ERROR CODE [22] (DISCONNECTION IN CONVEYOR OFF SWITCH) IS DISPLAYED.............................................................292 E-8 ERROR CODE [24] (DISCONNECTION IN FEEDER OFF SWITCH) IS DISPLAYED (MACHINES NOT EQUIPPED WITH RADIO CONTROL)....................293 E-8 ERROR CODE [24] (DISCONNECTION IN FEEDER OFF SWITCH) IS DISPLAYED (MACHINES EQUIPPED WITH RADIO CONTROL)........................294 E-9 ERROR CODE [31] (ABNORMALITY IN FEEDER SPEED DIAL) IS DISPLAYED.................................................................295 E-10 ERROR CODE [32] (ABNORMALITY IN CRUSHER SPEED DIAL) IS DISPLAYED...............................................................296 E-11 ERROR CODE [41] (SHORT CIRCUIT IN CRUSHER MANUAL NORMAL ROTATION SWITCH) IS DISPLAYED..........................................297 E-12 ERROR CODE [42] (SHORT CIRCUIT IN CRUSHER MANUAL REVERSE ROTATION SWITCH) IS DISPLAYED.........................................298 E-13 ERROR CODE [51] (SHORT CIRCUIT IN OPTION 1 ON SWITCH) IS DISPLAYED.............................................................299 E-14 ERROR CODE [52] (SHORT CIRCUIT IN OPTION 2 ON SWITCH) IS DISPLAYED.............................................................300 E-15 ERROR CODE [54] (SHORT CIRCUIT IN OPTION 3 ON SWITCH ..........................................................................301 E-16 ERROR CODE [58] (SHORT CIRCUIT IN OPTION 4 ON SWITCH) IS DISPLAYED.............................................................302 E-17 ERROR CODE [61] (SHORT CIRCUIT IN CRUSHER ON SWITCH) IS DISPLAYED..............................................................303 E-18 ERROR CODE [62] (SHORT CIRCUIT IN CONVEYOR ON SWITCH) IS DISPLAYED ............................................................304 E-19 ERROR CODE [64] (SHORT CIRCUIT IN FEEDER ON SWITCH) IS DISPLAYED...............................................................305 E-20 ERROR CODE [71] (DISCONNECTION IN ENGINE SPEED SENSOR) IS DISPLAYED............................................................308 E-21 ERROR CODE [81] (ABNORMALITY IN MACHINE MODEL SELECTION) IS DISPLAYED..........................................................309 E-22 ERROR CODE [91] (SHORT CIRCUIT IN OPTION 1 SOLENOID) IS DISPLAYED..............................................................310 E-22 ERROR CODE [92] (SHORT CIRCUIT IN OPTION 2 SOLENOID) IS DISPLAYED..............................................................310 E-22 ERROR CODE [94] (SHORT CIRCUIT IN OPTION 3 SOLENOID) IS DISPLAYED..............................................................310 E-22 ERROR CODE [91] (SHORT CIRCUIT IN OPTION 4 SOLENOID) IS DISPLAYED..............................................................310 E-23 ERROR CODE [A1] (SHORT CIRCUIT IN FEEDER (ROTATION) LAMP) IS DISPLAYED.........................................................312 E-24 ERROR CODE [A2] (SHORT CIRCUIT IN HORN) IS DISPLAYED...........................................................................313 E-25 ERROR CODE [A4] (SHORT CIRCUIT IN BELT CONVEYOR ON/OFF VALVE) IS DISPLAYED.....................................................314 E-26 ERROR CODE [B1] (SHORT CIRCUIT IN CRUSHER EPC VALVE) IS DISPLAYED..............................................................315 E-27 ERROR CODE [B2] (SHORT CIRCUIT IN FEEDER EPC VALVE) IS DISPLAYED..............................................................317 E-28 ERROR CODE [C1] (DISCONNECTION IN LS SOLENOID) IS DISPLAYED....................................................................319 E-29 ERROR CODE [C2] (DISCONNECTION IN TVC SOLENOID) IS DISPLAYED...................................................................320 E-30 ERROR CODE [C4] (SHORT CIRCUIT IN LS SOLENOID) IS DISPLAYED....................................................................321 E-31 ERROR CODE [C8] (SHORT CIRCUIT IN TVC SOLENOID) IS DISPLAYED...................................................................322 E-32 ERROR CODE [D1] (STEP OUT IN GOVERNOR MOTOR) IS DISPLAYED......................................................................323 E-33 ERROR CODE [D2] (SHORT CIRCUIT IN BATTERY RELAY OUTPUT SYSTEM) IS DISPLAYED....................................................324 E-34 ERROR CODE [D4] (ABNORMALITY IN FEED BACK POTENTIOMETER SYSTEM) IS DISPLAYED...................................................325 E-35 ERROR CODE [D8] (ABNORMALITY IN FUEL CONTROL DIAL INPUT VALUE) IS DISPLAYED....................................................326 E-36 ERROR CODE [E1] (DISCONNECTION IN GOVERNOR MOTOR) IS DISPLAYED.................................................................327 E-37 ERROR CODE [E2] (SHORT CIRCUIT IN GOVERNOR MOTOR) IS DISPLAYED.................................................................328 E-38 ERROR CODE (-E) (DISCONNECITON IN EMERGENCY STOP SWITCH) IS DISPLAYED..........................................................329 E-39 ENGINE DOES NOT START..........................................................................................................333 E-40 ENGINE SPEED STAYS AT LOW IDLING (ACCORDING TO MONITOR WARNING LAMP)...........................................................336 E-41 ENGINE DOES NOT STOP...........................................................................................................337 A) WHEN GOVERNOR MOTOR DRIVE SYSTEM IS DEFECTIVE................................................................................337 B) WHEN ACTUATION OF BATTERY RELAY SYSTEM IS DEFECTIVE..........................................................................339 E-42 ENGINE SPEED IS IRREGULAR......................................................................................................341 A) IDLING SPEED IS IRREGULAR....................................................................................................341 B) THERE IS HUNTING.............................................................................................................343 E-43 LACK OF OUTPUT (ENGINE HIGH IDLING SPEED IS TOO LOW)...........................................................................345 E-44 WORK EQUIPMENT DOES NOT STOP WHEN THERE IS ABNORMLITY IN ENGINE OIL PRESSURE, ENGINE WATER TEMPERATURE OR BATTERY CHARGE.......347 E-45 CONVEYER DOES NOT WORK EVEN WHEN CONVEYOR ON SWITCH IS PRESSED.................................................................348 A) ABNORMALITY IN INPUT SYSTEM..................................................................................................348 B) ABNORMALITY IN OUTPUT SYSTEM.................................................................................................348 E-46 CONVEYOR DOES NOT STOP EVEN WHEN CONVEYOR OFF SWITCH IS PRESSED................................................................349 E-47 CRUSHER DOES NOT WORK EVEN WHEN CRUSHER START SWITCH IS PRESSED................................................................350 A) ABNORMALITY IN INPUT SYSTEM..................................................................................................350 B) ABNORMALITY IN OUTPUT SYSTEM.................................................................................................350 E-48 CRUSHER DOES NOT STOP EVEN WHEN CRUSHER STOP SWITCH IS PRESSED.................................................................352 E-49 CRUSHER DOES NOT WORK EVEN WHEN CRUSHER MANUAL NORMAL ROTATION SWITCH IS PRESSED...............................................353 A) ABNORMALITY IN INPUT SYSTEM..................................................................................................353 B) ABNORMALITY IN OUTPUT SYSTEM.................................................................................................353 E-50 CRUSHER DOES NOT WORK EVEN WHEN CRUSHER MANUAL REVERSE ROTATION SWITCH IS PRESSED..............................................355 A) ABNORMALITY IN INPUT SYSTEM..................................................................................................355 B) ABNORMALITY IN OUTPUT SYSTEM.................................................................................................355 E-51 FEEDER DOES NOT WORK EVEN WHE FEEDER ON SWITCH IS PRESSED......................................................................357 A) ABNORMALITY IN INPUT SYSTEM..................................................................................................357 B) ABNORMALITY IN OUTPUT SYSTEM.................................................................................................357 E-52 FEEDER DOES NOT STOP EVEN WHEN FEEDER OFF SWITCH IS PRESSED....................................................................359 E-53 OPTION 1 DOES NOT WORK EVEN WHEN OPTION 1 ON SWITCH IS PRESSED.................................................................362 E-53 OPTION 2 DOES NOT WORK EVEN WHEN OPTION 2 ON SWITCH IS PRESSED.................................................................362 E-53 OPTION 3 DOES NOT WORK EVEN WHEN OPTION 3 ON SWITCH IS PRESSED.................................................................362 E-53 OPTION 4 DOES NOT WORK EVEN WHEN OPTION 4 ON SWITCH IS PRESSED.................................................................362 A) ABNORMALITY IN INPUT SYSTEM..................................................................................................362 B) ABNORMALITY IN OUTPUT SYSTEM.................................................................................................363 E-54 OPTION 1 DOES NOT STOP EVEN WHEN OPTION 1 OFF SWITCH IS PRESSED................................................................365 E-54 OPTION 2 DOES NOT STOP EVEN WHEN OPTION 2 OFF SWITCH IS PRESSED................................................................365 E-54 OPTION 3 DOES NOT STOP EVEN WHEN OPTION 3 OFF SWITCH IS PRESSED................................................................365 E-54 OPTION 4 DOES NOT STOP EVEN WHEN OPTION 4 OFF SWITCH IS PRESSED................................................................365 E-55 FEEDER ROTATING SPEED DOES NOT CHANGE (REMAINS AT LOWEST SPEED)................................................................367 E-56 FEEDER DOES NOT AUTOMATICALLY STOP WHEN CRUSHER IS OVERLOADED..................................................................368 E-57 ALL WORK EQUIPMENT DOES NOT STOP WHEN THERE IS ABNORMAL LOAD ON CONVEYOR.......................................................369 E-58 ALL WORK EQUIPMENT DOES NOT STOP WHEN THERE IS ABNORMAL LOAD ON OPTION 1.......................................................370 E-59 ALL WORK EQUIPMENT DOES NOT STOP WHEN THERE IS ABNORMAL LOAD ON OPTION 2.......................................................371 E-60 ALL WORK EQUIPMENT DOES NOT STOP WHEN THERE IS ABNORMAL LOAD ON OPTION 3.......................................................372 E-61 ALL WORK EQUIPMENT DOES NOT STOP WHEN THERE IS ABNORMAL LOAD ON OPTION 4.......................................................373 E-62 ROTATING LAMP DOES NOT LIGHT UP................................................................................................375 E-63 HORN DOES NOT SOUND............................................................................................................377 A) HORN DOES NOT SOUND EVEN WHEN HORN SWITCH OR EMERGENCY STOP SWITCH ARE PRESSED...............................................377 B) HORN DOES NOT SOUND WHEN THERE IS ABNORMAL LOAD ON CONVEYOR OR OPTION........................................................379 E-64 MACHINE DOES NOT TRAEL WHE TRAVE/WORK SWITCH IS SET TO TRAVEL.................................................................381 E-65 WORK EQUIPMENT DOES NOT MOVE WHEN TRAVEL/WORK SWITCH IS SET TO WORK............................................................382 E-66 ERROR CODE [A8] (SHORT CIRCUIT IN CRUSHER NORMAL/REVERSE SELECTOR RELAY) IS DISPLAYED..........................................383 E-67 ERROR CODE [01] (ABNORMALITY IN CRUSHER OVERLOADE DIAL) IS DISPLAYED...........................................................384 E-68 ERROR CODE [02] (ABNORMALITY IN CRUSHER NORMAL ROTATION PRESSURE SENSOR) IS DISPLAYED..........................................385 E-69 ERROR CODE [04] (ABNORMALITY IN CRUSHER REVERSE RETATION PRESSURE SENSOR) IS DISPLAYED.........................................386 TROUBLESHOOTING OF HYDRAULIC AND MECHANICAL SYSTEM (H MODE).............................................................................387 H-1 Speeds of all work equipment, travel are slow or lack power.....................................................................388 H-2 There is excessive drop in engine speed, or engine stalls.......................................................................389 H-3 Neither work equipment nor travel move..........................................................................................390 H-4 Abnormal noise generated (around pump)..........................................................................................390 H-5 Crusher feeder is slow or lacks power...........................................................................................391 H-6 Conveyor, option is slow or lacks power.........................................................................................391 H-7 In compound operations, work equipment extremely slow...........................................................................392 H-8 Machine deviates to one side when traveling.....................................................................................393 a) Deviates in same direction when traveling in FORWARD and REVERSE.............................................................393 b) Deviates in opposite direction when traveling in FORWARD and REVERSE.........................................................393 H-9 Excessive deviation when starting...............................................................................................394 H-10 Travel speed is slow or lacks power............................................................................................394 H-11 Steering is difficult or lacks power...........................................................................................395 H-12 Machine does not move..........................................................................................................397 TROUBLESHOOTING OF MONITOR SYSTEM (M MODE)..............................................................................................398 M-1 When starting switch is turned ON, no display is given (3-second self check is also not carried out)............................399 M-2 When starting switch is turned ON, even when self check is completed (all lamps light up for 3 seconds), lamps do not go out....399 M-3 When starting switch is turned ON, some lamps do not light up for 3 seconds.....................................................400 a) No gauge lamps light up (caution lamps light up).............................................................................400 b) Travel lock monitor lamp, and preheating lamp do not light up (gauge lamps light up).........................................400 c) Battery charge caution lamp does not light up................................................................................400 d) Engine oil pressure caution lamp does not light up...........................................................................400 M-4 When starting switch is turned ON, battery charge caution lamp does not light up................................................401 M-5 When starting switch is turned ON, engine oil pressure caution lamp does not light up...........................................401 M-6 During preheating, preheating pilot lamp does not light up......................................................................402 M-7 When travel/work selector switch is operated, travel lock monitor lamp does not change..........................................403 a) Does not light up............................................................................................................403 b) Does not go out..............................................................................................................404 M-8 When engine is running, engine oil pressure caution lamp lights up (engine oil pressure-is normal)..............................405 M-9 When starting switch is turned ON, battery charge caution lamp does not light up................................................405 M-10 Abnormality in engine water temperature gauge..................................................................................406 a) After engine is started, only lowest level lamp (white range) lights up and level does not rise..............................406 b) After engine is started, level immediately rises and b) After engine is started, level immediately rises and.................406 c) Water temperature gauge goes out.............................................................................................406 M-11 Abnormality in fuel gauge......................................................................................................407 a) All segments of fuel gauge go out............................................................................................407 b) Fuel level has gone down, but fuel gauge always displays FULL................................................................407 c) Even when fuel tank is filled, fuel gauge does not display FULL..............................................................407 M-12 Defective operation of revolving warning lamp..................................................................................409 a) Does not light up............................................................................................................409 b) Does not go out..............................................................................................................410 M-13 Night lighting does not light up...............................................................................................411 a) Gauge lighting does not light up.............................................................................................411 b) Service meter lighting does not light up.....................................................................................411 40 MAINTENANCE STANDARD.........................................................................................................................412 FINAL DRIVE ................................................................................................................................413 IDLER ......................................................................................................................................415 CARRIER ROLLER .............................................................................................................................417 TRACK ROLLER ...............................................................................................................................418 TRACK SHOE .................................................................................................................................419 TRACK FRAME • RECOIL SPRING ................................................................................................................423 HYDRAULIC PUMP .............................................................................................................................424 SELF-REDUCING PRESSURE VALVE ...............................................................................................................425 CONTROL VALVE ..............................................................................................................................426 EPC • SOLENOID VALVE .......................................................................................................................431 TRAVEL PPC VALVE ...........................................................................................................................432 TRAVEL MOTOR ...............................................................................................................................433 CRUSHER MOTOR...............................................................................................................................434 CRUSHER ....................................................................................................................................435 90 OTHERS.......................................................................................................................................440 HYDRAULIC CIRCUIT DIAGRAM (1/2).............................................................................................................442 HYDRAULIC CIRCUIT DIAGRAM (2/2).............................................................................................................444 ELECTRICAL CIRCUIT DIAGRAM (1/2) (SERIAL NO.: 1005-1499)....................................................................................446 ELECTRICAL CIRUIT DIAGRAM (2/2) (SERIAL NO. 1005-1499)......................................................................................448 ELECTRICAL CIRCUIT DIAGRAM (1/2) (SERIAL NO. 1501 AND UP)...................................................................................450 ELECTRICAL CIRCUIT DIAGRAM (2/2) (SERIAL NO.: 1501 AND UP)..................................................................................452 INPUT/OUTPUT SYSTEM STRUCTURE DIAGRAM.......................................................................................................454
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⦁ This is the same manual used by the dealers inorder to diagnose your vehicle of its faults.
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