Komatsu MX352 MX502 Mini Excavator Shop Manual SEBM035400 PDF
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Komatsu MX352 MX502 Mini Excavator Shop Manual SEBM035400 – PDF DOWNLOAD
- MACHINE MODEL SERIAL NUMBERMX352 6Y6089 and upMX502 6Y7038 and up
Description
Komatsu MX352 MX502 Mini Excavator Shop Manual SEBM035400 – PDF DOWNLOAD
FILE DETAILS:
Komatsu MX352 MX502 Mini Excavator Shop Manual SEBM035400 – PDF DOWNLOAD
Language : English
Pages : 491
Downloadable : Yes
File Type : PDF
IMAGES PREVIEW OF THE MANUAL:
TABLE OF CONTENTS:
Komatsu MX352 MX502 Mini Excavator Shop Manual SEBM035400 – PDF DOWNLOAD
- MACHINE MODEL SERIAL NUMBERMX352 6Y6089 and upMX502 6Y7038 and up
MAIN MENU 0
COVER 1
CONTENTS 2
SAFETY 3
SAFETY NOTICE 3
FOREWORD 5
GENERAL 5
HOW TO READ THE SHOP MANUAL 6
HOISTING INSTRUCTIONS 7
METHOD OF DISASSEMBLING, CONNECTING PUSH-PULL TYPE COUPLER 8
COATING MATERIALS 10
STANDARD TIGHTENING TORQUE 12
ELECTRIC WIRE CODE 15
CONVERSION TABLE 16
UNITS 22
01 GENERAL 23
SPECIFICATION DIMENSION DRAWING 24
WORKING RANGE DRAWING 25
SPECIFICATIONS 26
WEIGHT TABLE 32
LUBRICANTS, FUEL AND COOLANT SPECIFICATIONS 34
10 STRUCTURE, FUNCTION AND MAINTENANCE STANDARD 37
PTO 38
COOLING SYSTEM 40
POWER TRAIN 42
SWING CIRCLE 43
SWING MACHINERY 44
TRACK FRAME 48
IDLER CUSHION 49
IDLER 50
TRACK ROLLER 52
CARRIER ROLLER 54
SPROCKET 55
TRACK SHOE 56
HYDRAULIC COMPONENTS LAYOUT DRAWING 64
HYDRAULIC TANK 66
CENTER SWIVEL JOINT 69
TRAVEL MOTOR 71
HYDRAULIC CYLINDER 79
SOLENOID VALVE 83
MULTI-CONTROL VALVE 86
HYDRAULIC PUMP 87
CONTROL VALVE 98
CLSS 112
OPERATION FOR EACH FUNCTION AND VALVE 116
SWING MOTOR 138
PPC VALVE 147
WORK EQUIPMENT 155
DIMENSIONS OF EACH PART OF WORK EQUIPMENT 158
FLOOR 164
AIR CONDITIONER 165
ENGINE CONTROL 166
ELECTRIC CONTROL SYSTEM 168
COMPONENT PARTS OF SYSTEM 173
MONITOR SYSTEM 174
MONITOR PANEL 175
SENSORS 177
20 TESTING AND ADJUSTING 179
STANDARD VALUE TABLE FOR ENGINE RELATED PARTS 180
STANDARD VALUE TABLE FOR CHASSIS RELATED PARTS 182
TESTING AND ADJUSTING 197
LIST OF TESTING, ADJUSTING, AND TROUBLESHOOTING TOOLS 198
MEASURING ENGINE SPEED 200
MEASUREMENT OF EXHAUST GAS COLOR 201
ADJUSTING VALVE CLEARANCE 202
MEASURING COMPRESSION PRESSURE 205
MEASURING ENGINE OIL PRESSURE 206
TESTING AND ADJUSTING FUEL INJECTION TIMING 207
TESTING AND ADJUSTING ALTERNATOR BELT TENSION 209
ADJUSTING FUEL CONTROL LEVER 210
TESTING WEAR OF SPROCKET 211
TESTING AND ADJUSTING TRACK SHOE TENSION 212
MEASURING AND ADJUSTING OIL PRESSURES IN WORK EQUIPMENT, TRAVEL, BOOM SWING, SWING, AND BLADE CIRCUITS 213
MEASURING AND ADJUSTING LS DIFFERENTIAL PRESSURE 217
ADJUSTING PC VALVE 221
MEASURING AND ADJUSTING CONTROL PUMP CIRCUIT OIL PRESSURE 222
MEASURING SOLENOID VALVE OUTPUT PRESSURE 224
MEASURING PPC VALVE OUTPUT PRESSURE 226
ADJUSTING PPC VALVE 229
MEASURING SWING HOLDING BRAKE RELEASE PRESSURE 230
TESTING AND ADJUSTING TRAVEL DEVIATION 231
MEASUREMENT OF OIL LEAKAGE FROM WORK EQUIPMENT CYLINDER 233
BLEEDING AIR FROM EACH PART 235
RELEASING RESIDUAL PRESSURE FROM HYDRAULIC CIRCUIT 238
RELEASING RESIDUAL PRESSURE FROM HYDRAULIC TANK 238
PRESSURIZING HYDRAULIC TANK 239
INSPECTION PROCEDURES FOR DIODE 240
TROUBLESHOOTING 241
POINTS TO REMEMBER WHEN TROUBLESHOOTING 242
SEQUENCE OF EVENTS IN TROUBLESHOOTING 243
POINTS TO REMEMBER WHEN CARRYING OUT MAINTENANCE 244
CHECKS BEFORE TROUBLESHOOTING 252
CLASSIFICATION AND PROCEDURES OF TROUBLESHOOTING 253
TYPES AND LOCATIONS OF CONNECTORS 256
CONNECTOR ARRANGEMENT DIAGRAM 262
CONNECTION TABLE FOR CONNECTOR PIN NUMBERS 270
T-ADAPTER – BOXES AND T-ADAPTER TABLE 292
TROUBLESHOOTING OF ELECTRICAL SYSTEM (E MODE) 295
BEFORE STARTING E-MODE TROUBLESHOOTING 296
INFORMATION CONTAINED IN TROUBLESHOOTING TABLE 297
E-1 ENGINE DOES NOT START 298
E-2 ENGINE DOES NOT STOP 306
E-3 WHEN WORK EQUIPMENT LOCK (PPC BASIC PRESSURE LOCK) LEVER IS SET IN LOCK POSITION, WORK EQUIPMENT STILL MOVES 310
E-4 WINDSHIELD WIPER DOES NOT OPERATE 314
E-5 WINDSHIELD WASHER DOES NOT OPERATE 316
E-6 TRAVEL ALARM DOES NOT SOUND 320
TROUBLESHOOTING OF HYDRAULIC AND MECHANICAL SYSTEM (H MODE) 323
INFORMATION CONTAINED IN TROUBLESHOOTING TABLE 324
H-1 SPEED OR POWER OF WHOLE WORK EQUIPMENT, TRAVEL, SWING, AND BLADE IS LOW 325
H-2 ENGINE SPEED LOWERS EXTREMELY OR ENGINE STALLS 329
H-3 WHOLE WORK EQUIPMENT, TRAVEL SYSTEM, SWING SYSTEM, AND BLADE DO NOT WORK 330
H-4 ABNORMAL SOUND COMES OUT FROM AROUND HYDRAULIC PUMP 333
H-5 FINE CONTROL PERFORMANCE OR RESPONSE IS LOW 333
H-6 SPEED OR POWER OF BOOM IS LOW 334
H-7 SPEED OR POWER OF ARM IS LOW 335
H-8 SPEED OR POWER OF BUCKET IS LOW 336
H-9 SPEED OR POWER OF BOOM SWING IS LOW 337
H-10 WORK EQUIPMENT DOES NOT MOVE SINGLY 338
H-11 WORK EQUIPMENT HYDRAULIC DRIFT IS LARGE 339
H-12 TIME LAG OF WORK EQUIPMENT IS LARGE 340
H-13 IN COMPOUND OPERATION OF WORK EQUIPMENT, SPEED OF PART LOADED MORE IS LOW 340
H-14 MACHINE DEVIATES DURING TRAVEL 341
H-15 TRAVEL SPEED OR TRAVEL POWER IS LOW (WHILE WORK EQUIPMENT IS NORMAL) 343
H-16 MACHINE IS NOT STEERED WELL OR STEERING POWER IS LOW 344
H-17 TRAVEL SPEED DOES NOT CHANGE 345
H-18 TRAVEL MOTOR DOES NOT WORK 346
H-19 SPEED OR POWER OF SWING IS LOW 348
H-20 MACHINE DOES NOT SWING 350
H-21 SWING ACCELERATION PERFORMANCE IS LOW 352
H-22 MACHINE OVERRUNS WHEN IT STOPS SWINGING 354
H-23 LARGE SHOCK IS MADE WHEN MACHINE STOPS SWINGING 355
H-24 WHEN UPPER STRUCTURE STOPS SWINGING, IT MAKES LARGE SOUND 355
H-25 HYDRAULIC DRIFT OF SWING IS LARGE 356
H-26 SPEED OR POWER OF BLADE IS LOW 357
H-27 BLADE DOES NOT MOVE 358
H-28 HYDRAULIC DRIFT OF BLADE IS LARGE 358
TROUBLESHOOTING OF MONITOR PANEL SYSTEM (M MODE) 359
BEFORE STARTING M-MODE TROUBLESHOOTING 360
INFORMATION CONTAINED IN TROUBLESHOOTING TABLE 361
SYSTEM DIAGRAM RELATED TO MONITOR PANEL 362
M-1 WHEN STARTING SWITCH IS TURNED ON, ANY ITEM DOES NOT OPERATE 364
M-2 WHEN STARTING SWITCH IS TURNED ON, SOME ITEMS DO NOT OPERATE 366
M-3 ALARM BUZZER IS ABNORMAL 367
M-4 ENGINE OIL PRESSURE CAUTION IS TURNED ON 369
M-5 CHARGE LEVEL CAUTION IS TURNED ON 370
M-6 PREHEATING SYSTEM DOES NOT OPERATE OR PREHEATER DOES NOT BECOME HOT 374
M-7 COOLANT TEMPERATURE GAUGE IS ABNORMAL 376
M-8 FUEL LEVEL GAUGE IS ABNORMAL 381
M-9 SERVICE METER DOES NOT OPERATE WHILE ENGINE IS RUNNING 385
M-10 2ND TRAVEL SPEED IS NOT SELECTED 387
M-11 WORKING LAMP DOES NOT LIGHT UP 392
TROUBLESHOOTING OF ENGINE (S MODE) 395
METHOD OF USING TROUBLESHOOTING CHARTS 396
S-1 STARTING PERFORMANCE IS POOR (STARTING ALWAYS TAKES TIME) 400
S-2 ENGINE DOES NOT START 402
S-3 ENGINE DOES NOT PICK UP SMOOTHLY (FOLLOW-UP IS POOR) 405
S-4 ENGINE STOPS DURING OPERATIONS 406
S-5 ENGINE DOES NOT ROTATE SMOOTHLY (HUNTING) 407
S-6 ENGINE LACKS OUTPUT OR LACKS POWER 408
S-7 EXHAUST SMOKE IS BLACK (INCOMPLETE COMBUSTION) 409
S-8 OIL CONSUMPTION IS EXCESSIVE OR EXHAUST SMOKE IS BLUE 410
S-9 OIL BECOMES CONTAMINATED QUICKLY 411
S-10 FUEL CONSUMPTION IS EXCESSIVE 412
S-11 OIL IS IN COOLING WATER, OR WATER SPURTS BACK, OR WATER LEVEL GOES DOWN 413
S-12 OIL PRESSURE CAUTION LAMP LIGHTS UP (DROP IN OIL PRESSURE) 414
S-13 OIL LEVEL RISES (WATER, FUEL IN OIL) 415
S-14 WATER TEMPERATURE BECOMES TOO HIGH (OVERHEATING) 416
S-15 ABNORMAL NOISE IS MADE 417
S-16 VIBRATION IS EXCESSIVE 418
30 DISASSEMBLY AND ASSEMBLY 419
HOW TO READ THIS MANUAL 420
PRECAUTIONS WHEN PERFORMING OPERATION 422
SPECIAL TOOL LIST 424
SKETCHES OF SPECIAL TOOLS 428
REMOVAL AND INSTALLATION OF RADIATOR AND HYDRAULIC OIL COOLER 429
REMOVAL AND INSTALLATION OF ENGINE AND HYDRAULIC PUMP 438
REMOVAL AND INSTALLATION OF TRACK SHOE 445
DISASSEMBLY AND ASSEMBLY OF IDLER 446
DISASSEMBLY AND ASSEMBLY OF RECOIL SPRING 448
DISASSEMBLY AND ASSEMBLY OF TRACK ROLLER 451
DISASSEMBLY AND ASSEMBLY OF CARRIER ROLLER 453
REMOVAL AND INSTALLATION OF CENTER SWIVEL JOINT 454
DISASSEMBLY AND ASSEMBLY OF CENTER SWIVEL JOINT 457
REMOVAL AND INSTALLATION OF FLOOR FRAME ASSEMBLY 459
REMOVAL AND INSTALLATION OF SWING MOTOR AND SWING MACHINERY 463
DISASSEMBLY AND ASSEMBLY OF SWING MOTOR AND SWING MACHINERY 464
REMOVAL AND INSTALLATION OF WORK EQUIPMENT 470
REMOVAL AND INSTALLATION OF REVOLVING FRAME 472
REMOVAL AND INSTALLATION OF SWING CIRCLE 474
DISASSEMBLY AND ASSEMBLY OF CONTROL VALVE 475
DISASSEMBLY AND ASSEMBLY OF HYDRAULIC CYLINDER ASSEMBLY 476
REMOVAL AND INSTALLATION OF AIR CONDITIONER UNIT 480
90 OTHERS 483
HYDRAULIC CIRCUIT DIAGRAM MX352 484
HYDRAULIC CIRCUIT DIAGRAM MX502 485
HYDRAULIC CIRCUIT DIAGRAM (Additional attachment circuit) MX502 486
ELECTRICAL CIRCUIT DIAGRAM MX352 (1/2) 487
ELECTRICAL CIRCUIT DIAGRAM MX352 (2/2) 488
ELECTRICAL CIRCUIT DIAGRAM MX502 (1/2) 489
DESCRIPTION:
Komatsu MX352 MX502 Mini Excavator Shop Manual SEBM035400 – PDF DOWNLOAD
- MACHINE MODEL SERIAL NUMBERMX352 6Y6089 and upMX502 6Y7038 and up
G.B 20/12/24
