Komatsu H285S Hydraulic Shovel Shop Manual SN 78067 PDF

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Komatsu H285S Hydraulic Shovel Shop Manual SN 78067 – PDF DOWNLOAD

FILE DETAILS:

Komatsu H285S Hydraulic Shovel Shop Manual SN 78067 – PDF DOWNLOAD

Language : English
Pages :752
Downloadable : Yes
File Type : PDF

TABLE OF CONTENTS:

Komatsu H285S Hydraulic Shovel Shop Manual SN 78067 – PDF DOWNLOAD

SERIAL NUMBER H285S 78067

MAIN MENU 0
COVER 1
FOREWORD 3
LIST OF CONTENTS 7
PART 1 13
DIVISION OF MACHINE 13
SUPERSTRUCTURE 15
UNDERCARRIAGE 17
EQUIPMENT 19
SPECIAL EQUIPMENT 21
TOOTH SYSTEMS 25
LUBRICATION 27
REFILLING UNIT 37
HYDRAULIC SYSTEM 39
CONTROL 43
CONTROL UNITS 45
FILTERS OF THE HYDRAULIC OIL 47
ASSEMBLING THE EXCAVATOR 49
PART 2 77
LIST OF CONTENTS 77
HINTS FOR THE HYDRAULIC CIRCUIT DIAGRAM 85
ELECTRIC CIRCUIT DIAGRAM101
HINTS FOR THE ELECTRIC CIRCUIT DIAGRAM107
HINTS FOR CHECK AND ADJUSTMENTS119
PROPULSION121
CUMMINS ENGINE123
SWITCHES, SENSORS AND FILTERS125
RPM ADJUSTMENTS129
FAN/FAN DRIVE135
AIR FILTER137
COUPLING139
PUMP DISTRIBUTOR GEAR141
GEAR LUBRICATION143
HYDRAULIC PUMPS147
PUMP BEARING LUBRICATION149
PUMP REGULATION151
LOAD LIMIT REGULATION155
PRESSURE CUT-OFF165
SETTING OF THE LOAD LIMIT VALVE167
MEASURING AND SETTING OF THE PRESSURE OF THE PRESSURE CUT-OFF VALVE169
MEASURING AND SETTING OF THE BEGINNING OF REGULATION WITHOUT A TEST BOLT171
CHECKING WITH TEST SCREW173
HYDRAULIC OIL COOLING175
MEASURING AND SETTING OF THE FAN SPEED181
COOLING CIRCUIT185
MEASURING AND SETTING OF THE BACK PRESSURE VALVE187
CHECKS TO BE PERFORMED IF HYDRAULIC TEMPERATURE IS TOO HIGH189
HYDRAULIC OIL TANK191
PILOT PRESSURE CIRCUITS193
CONTROL OIL SUPPLY195
CHECKS AND ADJUSTMENTS199
CONTROL OIL FLOW FROM THE 4 FUNCTIONS PILOT CONTROL UNIT TO THE CONTROL BLOCKS201
CONTROL OIL FLOW FROM PEDAL TO THE CONTROL BLOCK207
CONTROL OIL FLOW FROM THE 2 FUNCTION CONTROL UNIT TO CONTROL BLOCK209
TRAVEL PARKING BRAKE211
SLEW PARKING BRAKE213
SERVICE LINE CIRCUITS215
MEASUREMENTS AND PRESSURE ADJUSTMENTS/SLEW CIRCUIT225
TRAVEL MOTORS233
MEASUREMENTS AND PRESSURE ADJUSTMENTS/TRAVEL MOTORS235
BUCKET CYLINDER239
MEASUREMENTS AND PRESSURE ADJUSTMENTS/BUCKET CYLINDER241
CLAM CYLINDER249
MEASURINGS AND PRESSURE ADJUSTMENTS/CLAM CYLINDER251
STICK CYLINDER/LOADER ATTACHMENT261
MEASURINGS AND PRESSURE ADJUSTMENTS/STICK CYLINDER/LOADER ATTACHMENT263
BOOM CYLINDER/LOADER ATTACHMENT271
MEASURINGS AND PRESSURE ADJUSTMENTS/BOOM CYLINDERS/LOADER ATTACHMENTS273
BUCKET CYLINDER (BACK HOE ATTACHMENT)281
MEASUREMENTS AND PRESSURE ADJUSTMENTS/BUCKET CYLINDER283
STICK CYLINDER/BACK HOE ATTACHMENT291
MEASURINGS AND ADJUSTMENTS/STICK CYLINDER/BACK HOE ATTACHMENT293
BOOM CYLINDER/BACK HOE ATTACHMENT301
MEASURINGS AND PRESSURE ADJUSTMENTS/BOOM CYLINDERS/BACK HOE ATTACHMENT303
AIR CONDITION DRIVE309
MEASUREMENT AND ADJUSTMENT/AIR CONDITION DRIVE311
LUBRICATION SYSTEM313
SINGLE CIRCUIT CENTRAL LUBRICATION SYSTEM WITH PROGRESSIVE DISTIBUTORS315
ELECTRICAL FUNCTION321
MEASUREMENT AND PRESSURE ADJUSTMENT/COMPRESSED AIR SYSTEM325
SLEW RING TOOTHING MIST LUBRICATION331
ELECTRICAL FUNCTION335
MEASUREMENT AND PRESSURE ADJUSTMENT/COMPRESSED AIR SYSTEM339
GENERATOR DRIVE345
MEASUREMENTS AND ADJUSTMENTS/GENERATOR DRIVE347
PART 3353
LIST OF CONTENTS353
PLATFORM363
DIESEL MOTOR365
COMPUSAVE ENGINE MOTOR367
COUPLING407
UNIVERSAL SHAFT409
PUMP DISTRIBUTOR GEAR411
HYDRAULIC PUMPS417
MAIN PUMPS, A7V HDD417
GEARED PUMPS431
HYDRAULIC PUMP A2F437
HYDRAULIC PUMP A10V 0441
HYDRAULIC PUMP A7F 0/107445
DIESEL FUEL TANK447
ELECTRONIC SET-UP449
HYDRAULIC OIL TANK453
HYDRAULIC OIL FILTERS463
FILTERS IN THE PUMP LINE TO THE CONTROL BLOCKS463
IN-LINE FILTER467
RETURN OIL/CASE DRAIN FILTER IN THE HYDRAULIC RESERVOIR469
BREATHER FILTER ON THE HYDRAULIC OIL RESERVOIR471
CONTROL BLOCKS AND VALVES473
4 FOLD CONTROL BLOCK M0 52473
PRESSURE RELIEF VALVE, PILOT OPERATED479
SECONDARY VALVE: PRE-CONTROLLED483
ANTI-CAVITATION VALVE (MAKE-UP VALVE)485
LOAD HOLDING VALVES INSIDE THE SPOOLS487
SINGLE CONTROL BLOCK M0 40489
PRESSURE INCREASING VALVE495
PRESSURE RELIEF VALVE, PILOT OPERATED499
CHECK VALVE503
SHUTTLE VALVE505
PRESSURE RELIEF VALVE, PRE-CONTROLLED507
PRESSURE RELIEF VALVE, PILOT OPERATED509
PRESSURE RELIEF VALVE, PILOT OPERATED511
PRESSURE RELIEF VALVES TYPE DB/DBW513
MAGNET VALVE515
PRESSURE RELIEF VALVE, REMOTE CONTROLLED517
LOAD LIMIT VALVE519
NOZZLE BLOCK/PUMP REGULATING525
PRESSURE SEQUENCE VALVE (PRESSURE CUT OFF VALVE)527
RESTRICTOR BLOCK529
PILOT CONTROL UNITS, 4 BOLT UNITS531
PILOT CONTROL UNITS, 1 BOLT UNITS535
TRAVEL BRAKE VALVE537
PRESSURE ACCUMULATOR541
TESTING THE PRECHARGE PRESSURE AND REFILLING545
SLEW GEAR549
REPLACEMENT OF THE DISKS553
REPLACEMENT OF THE QUAD-RINGS555
AXIAL PISTON MOTOR557
SLEW RING561
UNDERCARRIAGE563
IDLER WHEEL ASSEMBLY563
ALTERING THE TRACK TENSION565
BOTTOM ROLLER567
TOP ROLLER569
CRAWLER DRIVE ASS’Y571
TRAVEL GEAR575
REPLACEMENT OF THE DISKS579
REPLACEMENT OF THE QUAD-RINGS581
DRIVE SPROCKET583
CRAWLER CHAIN585
AXIAL PISTON MOTOR587
ROTARY DISTRIBUTOR595
HYDRAULIC CYLINDERS601
AIR CONDITIONING EQUIPMENT605
MAINTENANCE SCHEDULE617
PRESSURE MONITORING635
COMPRESSED AIR SYSTEM639
COMPRESSOR AT CU ENGINE639
AIR DRYER643
AUTOMATIC DRAIN VALVE649
AIR EQUIPMENT – SERVICE UNIT651
SOLENOID VALVE657
VENT VALVE ASSEMBLY659
LUBE SYSTEM661
METERING VALVE661
PROGRESSIVE LUBE DISTRIBUTOR669
PRESSURE CONTROL UNIT673
TROUBLESHOOTING LUBRICATION SYSTEM675
SHORT INFORMATION691
REVOLUTIONS/PRESSURES691
FILLING CAPACITIES693
HYDRAULIC OIL695
TORQUE CHART697
TORQUE CHART – NM697
TORQUE CHART – FT LBF699
CONVERSION METRIC/INCH701
TROUBLESHOOTING H285703
GENERAL 705
MALFUNCTION WHEN EXTENDING OR RETRACTING CYLINDERS707
TROUBLESHOOTING SLEW CIRCUIT709
TROUBLESHOOTING SLEW BRAKE CIRCUIT711
TROUBLESHOOTING SLEW HOUSE BRAKE CIRCUIT713
TROUBLESHOOTING TRAVEL CIRCUIT715
TROUBLESHOOTING THE TRAVEL BRAKE CIRCUIT717
TROUBLESHOOTING PUMP REGULATION CIRCUIT719
TROUBLESHOOTING OIL COOLER CIRCUIT721
HYDRAULIC/ELECTRICAL DIAGRAM723
CONTENTS723
HYDRAULIC DIAGRAM724
ELECTRICAL DIAGRAM727

IMAGES PREVIEW OF THE MANUAL:

S.M 16/12/24