KOMATSU PC750,750LC-6 PC750SE-6 PC800,800SE-6 HYDRAULIC EXCAVATOR OPERATION & MAINTENANCE MANUAL (SN:11001 & UP)(SN:31001 & UP) – PDF DOWNLOAD

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KOMATSU PC750,750LC-6 PC750SE-6 PC800,800SE-6 HYDRAULIC EXCAVATOR OPERATION & MAINTENANCE MANUAL (SN:11001 & UP)(SN:31001 & UP)

KOMATSU PC750,750LC-6 PC750SE-6 PC800,800SE-6 HYDRAULIC EXCAVATOR OPERATION & MAINTENANCE MANUAL (SN:11001 & UP)(SN:31001 & UP) – PDF DOWNLOAD:

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KOMATSU PC750,750LC-6 PC750SE-6 PC800,800SE-6 HYDRAULIC EXCAVATOR OPERATION & MAINTENANCE MANUAL (SN:11001 & UP)(SN:31001 & UP)

• This manual provides rules and guidelines which will help you use this machine safely and effectively. The precautions in this manual must be followed at all times when performing operation and maintenance. Most accidents are caused by the failure to follow fundamental safety rules for the operation and maintenance of machines. Accidents can be prevented by knowing beforehand conditions that may cause a hazard when performing operation and maintenance.
• Operators and maintenance personnel must always do as follows before beginning operation or maintenance. Always be sure to read and understand this manual thoroughly before performing operation and maintenance. Read the safety messages given in this manual and the safety labels affixed to the machine thoroughly and be sure that you understand them fully. Keep this manual at the storage location for the operation and maintenance manual given below, and have all personnel read it periodically.
• If this manual has been lost or has become dirty and cannot be read, request a replacement manual immediately from Komatsu or your Komatsu distributor. If you sell the machine, be sure to give this manual to the new owners together with the machine. Komatsu delivers machines that comply with all applicable regulations and standards of the country to which it has been shipped.
• If this machine has been purchased in another country or purchased from someone in another country, it may lack certain safety devices and specifications that are necessary for use in your country. If there is any question about whether your product complies with the applicable standards and regulations of your country, consult Komatsu or your Komatsu distributor before operating the machine.

TABLE OF CONTENTS:

KOMATSU PC750,750LC-6 PC750SE-6 PC800,800SE-6 HYDRAULIC EXCAVATOR OPERATION & MAINTENANCE MANUAL (SN:11001 & UP)(SN:31001 & UP)

COVER.....................................................................................................................................................................  1
FOREWORD..................................................................................................................................................................  2
	FOREWORD..............................................................................................................................................................  3
	SAFETY INFORMATION....................................................................................................................................................  6
	INTRODUCTION..........................................................................................................................................................  8
		DIRECTIONS OF MACHINE.............................................................................................................................................  8
		BREAKING-IN THE NEW MACHINE.......................................................................................................................................  8
	PRODUCT INFORMATION...................................................................................................................................................  9
		MACHINE SERIAL NUMBER PLATE AND ITS LOCATION......................................................................................................................  9
		ENGINE SERIAL NUMBER PLATE AND ITS LOCATION.......................................................................................................................  9
		SERVICE METER LOCATION............................................................................................................................................ 10
		YOUR MACHINE SERIAL NUMBERS AND DISTRIBUTOR....................................................................................................................... 10
CONTENTS.................................................................................................................................................................. 11
SAFETY.................................................................................................................................................................... 15
	SAFETY INFORMATION.................................................................................................................................................... 16
	SAFETY LABELS......................................................................................................................................................... 18
		LOCATION OF SAFETY LABELS......................................................................................................................................... 18
		SAFETY LABELS..................................................................................................................................................... 19
	SAFETY INFORMATION.................................................................................................................................................... 24
		SAFETY RULES...................................................................................................................................................... 24
		IF ABNORMALITIES ARE FOUND........................................................................................................................................ 24
		WORKING WEAR AND PERSONAL PROTECTIVE ITEMS........................................................................................................................ 24
		FIRE EXTINGUISHER AND FIRST AID KIT............................................................................................................................... 24
		SAFETY EQUIPMENT.................................................................................................................................................. 24
		KEEP MACHINE CLEAN................................................................................................................................................ 25
		KEEP OPERATOR'S COMPARTMENT CLEAN................................................................................................................................. 25
		LEAVING OPERATOR'S SEAT WITH LOCK................................................................................................................................. 25
		HANDRAILS AND STEPS............................................................................................................................................... 26
		MOUNTING AND DISMOUNTING.......................................................................................................................................... 26
		NO PERSONS ON ATTACHMENTS......................................................................................................................................... 26
		BURN PREVENTION................................................................................................................................................... 27
		FIRE PREVENTION AND EXPLOSION PREVENTION.......................................................................................................................... 27
		ACTION IF FIRE OCCURS............................................................................................................................................. 28
		WINDSHIELD WASHER FLUID........................................................................................................................................... 28
		FALLING OBJECTS, FLYING OBJECTS AND INTRUDING OBJECTS PREVENTION.................................................................................................. 28
		ATTACHMENT INSTALLATION........................................................................................................................................... 29
		ATTACHMENT COMBINATIONS........................................................................................................................................... 29
		CAB WINDOW GLASSES................................................................................................................................................ 29
		UNAUTHORIZED MODIFICATIONS........................................................................................................................................ 29
		SAFETY AT JOBSITE................................................................................................................................................. 29
		WORKING ON LOOSE GROUND........................................................................................................................................... 30
		DISTANCE TO HIGH VOLTAGE CABLES................................................................................................................................... 30
		ENSURE GOOD VISIBILITY............................................................................................................................................ 30
		VENTILATION FOR ENCLOSED AREA..................................................................................................................................... 31
		SIGNALMAN'S SIGNAL AND SIGNS...................................................................................................................................... 31
		EMERGENCY EXIT FROM OPERATOR'S CAB................................................................................................................................ 31
		ASBESTOS DUST HAZARD PREVENTION................................................................................................................................... 31
	SAFETY MACHINE OPERATION.............................................................................................................................................. 32
		STARTING ENGINE................................................................................................................................................... 32
			CHECKS BEFORE STARTING ENGINE................................................................................................................................. 32
			SAFETY RULES FOR STARTING ENGINE.............................................................................................................................. 32
			STARTING ENGINE IN COLD WEATHER............................................................................................................................... 33
		OPERATION......................................................................................................................................................... 34
			CHECKS BEFORE OPERATION....................................................................................................................................... 34
			SAFETY RULES FOR CHANGING MACHINE DIRECTIONS.................................................................................................................. 34
			SAFETY RULES FOR TRAVELING.................................................................................................................................... 35
			TRAVELING ON SLOPES........................................................................................................................................... 35
			OPERATIONS ON SLOPES.......................................................................................................................................... 36
			PROHIBITED OPERATIONS......................................................................................................................................... 36
			OPERATIONS ON SNOW............................................................................................................................................ 38
			PARKING MACHINE............................................................................................................................................... 38
		TRANSPORTATION.................................................................................................................................................... 39
			LOADING AND UNLOADING......................................................................................................................................... 39
			SHIPPING THE MACHINE.......................................................................................................................................... 39
		BATTERY........................................................................................................................................................... 40
			BATTERY HAZARD PREVENTION..................................................................................................................................... 40
			STARTING ENGINE WITH BOOSTER CABLES........................................................................................................................... 41
		TOWING............................................................................................................................................................ 42
			SAFETY RULES FOR TOWING....................................................................................................................................... 42
		LIFTING OBJECTS WITH BUCKET....................................................................................................................................... 43
			SAFETY RULES FOR LIFTING OBJECTS.............................................................................................................................. 43
	SAFETY MAINTENANCE INFORMATION........................................................................................................................................ 44
		WARNING TAG....................................................................................................................................................... 44
		KEEP WORK PLACE CLEAN AND TIDY.................................................................................................................................... 44
		APPOINT LEADER WHEN WORKING WITH OTHERS........................................................................................................................... 44
		STOP ENGINE BEFORE CARRYING OUT MAINTENANCE....................................................................................................................... 45
		TWO WORKERS FOR MAINTENANCE WHEN ENGINE IS RUNNING................................................................................................................ 45
		PROPER TOOLS...................................................................................................................................................... 46
		ACCUMULATOR....................................................................................................................................................... 46
		PERSONNEL......................................................................................................................................................... 46
		ATTACHMENTS....................................................................................................................................................... 47
		WORK UNDER THE MACHINE............................................................................................................................................ 47
		NOISE............................................................................................................................................................. 47
		WHEN USING HAMMER................................................................................................................................................. 47
		WELDING WORKS..................................................................................................................................................... 47
		REMOVING BATTERY TERMINALS........................................................................................................................................ 48
		SAFETY FIRST WHEN USING HIGH-PRESSURE GREASE TO ADJUST TRACK TENSION.............................................................................................. 48
		DO NOT DISASSEMBLE RECOIL SPRINGS................................................................................................................................. 48
		SAFETY RULES FOR HIGH-PRESSURE OIL................................................................................................................................ 48
		PRECAUTION FOR HIGH FUEL PRESSURE................................................................................................................................. 49
		SAFETY HANDLING HIGH-PRESSURE HOSES............................................................................................................................... 49
		PRECAUTION FOR HIGH VOLTAGE....................................................................................................................................... 49
		WASTE MATERIALS................................................................................................................................................... 50
		AIR CONDITIONER MAINTENANCE....................................................................................................................................... 50
		COMPRESSED AIR.................................................................................................................................................... 50
		PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS..................................................................................................................... 50
OPERATION................................................................................................................................................................. 51
	MACHINE VIEW ILLUSTRATIONS............................................................................................................................................ 52
		OVERALL MACHINE VIEW.............................................................................................................................................. 52
		CONTROLS AND GAUGES............................................................................................................................................... 53
	DETAILED CONTROLS AND GAUGES.......................................................................................................................................... 54
		MONITORING SYSTEM................................................................................................................................................. 54
		SWITCHES.......................................................................................................................................................... 69
		CONTROL LEVERS AND PEDALS......................................................................................................................................... 75
		SUN ROOF.......................................................................................................................................................... 78
		WINDSHIELD........................................................................................................................................................ 79
		EMERGENCY EXIT FROM OPERATOR'S CAB................................................................................................................................ 82
		DOOR LOCK......................................................................................................................................................... 82
		CAP WITH LOCK..................................................................................................................................................... 82
		HOT AND COOL BOX.................................................................................................................................................. 84
		LUGGAGE BOX....................................................................................................................................................... 84
		ASHTRAY........................................................................................................................................................... 84
		AIR CONDITIONER CONTROLS.......................................................................................................................................... 85
		RADIO............................................................................................................................................................. 91
		AUXILIARY ELECTRIC POWER.......................................................................................................................................... 96
		FUSE.............................................................................................................................................................. 96
		CIRCUIT BREAKER................................................................................................................................................... 97
		CONTROLLERS....................................................................................................................................................... 98
		TOOL BOX.......................................................................................................................................................... 98
		GREASE PUMP....................................................................................................................................................... 99
		ACCUMULATOR.......................................................................................................................................................102
	MACHINE OPERATIONS AND CONTROLS.......................................................................................................................................103
		BEFORE STARTING ENGINE............................................................................................................................................103
		STARTING ENGINE...................................................................................................................................................120
		AFTER STARTING ENGINE.............................................................................................................................................124
		STOPPING THE ENGINE...............................................................................................................................................130
		MACHINE OPERATION.................................................................................................................................................131
		STEERING THE MACHINE..............................................................................................................................................135
		SWINGING..........................................................................................................................................................137
		WORK EQUIPMENT CONTROLS AND OPERATIONS............................................................................................................................138
		WORKING MODE......................................................................................................................................................139
		PROHIBITED OPERATIONS.............................................................................................................................................140
		GENERAL OPERATION INFORMATION.....................................................................................................................................142
		TRAVELING ON SLOPES...............................................................................................................................................143
		ESCAPE FROM MUD...................................................................................................................................................145
		RECOMMENDED APPLICATIONS..........................................................................................................................................146
		BUCKET REPLACEMENT................................................................................................................................................147
		PARKING MACHINE...................................................................................................................................................149
		CHECK AFTER SHUT OFF ENGINE.......................................................................................................................................151
		MACHINE INSPECTION AFTER DAILY WORK...............................................................................................................................151
		LOCKING...........................................................................................................................................................151
	TRANSPORTATION........................................................................................................................................................152
		PRECAUTIONS FOR TRANSPORTATION....................................................................................................................................152
		LIFTING MACHINE...................................................................................................................................................153
		SHIPPING MACHINE INFORMATION......................................................................................................................................154
		TRANSPORTATION POSTURE............................................................................................................................................155
		PROCEDURE FOR INCREASING OR REDUCING TRACK FRAME GAUGE............................................................................................................160
	COLD WEATHER OPERATION................................................................................................................................................162
		COLD WEATHER OPERATION INFORMATION................................................................................................................................162
		AFTER DAILY WORK COMPLETION.......................................................................................................................................164
		AFTER COLD WEATHER SEASON.........................................................................................................................................164
	LONG TERM STORAGE.....................................................................................................................................................165
		BEFORE STORAGE....................................................................................................................................................165
		DURING STORAGE....................................................................................................................................................165
		AFTER STORAGE.....................................................................................................................................................165
		STARTING MACHINE AFTER LONG-TERM STORAGE..........................................................................................................................166
	TROUBLES AND ACTIONS..................................................................................................................................................167
		RUNNING OUT OF FUEL...............................................................................................................................................167
		PHENOMENA THAT ARE NOT FAILURES...................................................................................................................................169
		TOWING THE MACHINE................................................................................................................................................170
		SEVERE JOB CONDITION..............................................................................................................................................170
		DISCHARGED BATTERY................................................................................................................................................171
		OTHER TROUBLE.....................................................................................................................................................175
MAINTENANCE...............................................................................................................................................................180
	MAINTENANCE INFORMATION...............................................................................................................................................181
	LUBRICANTS, COOLANT AND FILTERS.......................................................................................................................................183
		HANDLING OIL, FUEL, COOLANT, AND PERFORMING OIL CLINIC............................................................................................................183
		ELECTRIC SYSTEM MAINTENANCE.......................................................................................................................................185
	WEAR PARTS............................................................................................................................................................186
		WEAR PARTS LIST...................................................................................................................................................186
	LUBRICANTS, FUEL AND COOLANT SPECIFICATIONS...........................................................................................................................187
		PROPER SELECTION..................................................................................................................................................187
	TIGHTENING TORQUE SPECIFICATIONS......................................................................................................................................191
		TIGHTENING TORQUE LIST............................................................................................................................................191
	SAFETY CRITICAL PARTS.................................................................................................................................................192
		SAFETY CRITICAL PARTS LIST........................................................................................................................................193
	MAINTENANCE SCHEDULE..................................................................................................................................................194
		MAINTENANCE SCHEDULE CHART........................................................................................................................................194
	MAINTENANCE PROCEDURE.................................................................................................................................................196
		INITIAL 100 HOURS MAINTENANCE (ONLY AFTER THE FIRST 100 HOURS)....................................................................................................196
		INITIAL 500 HOURS MAINTENANCE (ONLY AFTER THE FIRST 500 HOURS)....................................................................................................196
		WHEN REQUIRED.....................................................................................................................................................197
			CHECK, CLEAN AND REPLACE AIR CLEANER ELEMENT..................................................................................................................197
			CLEAN INSIDE OF COOLING SYSTEM................................................................................................................................202
			CHECK AND TIGHTEN TRACK SHOE BOLTS............................................................................................................................205
			CHECK AND ADJUST TRACK TENSION................................................................................................................................206
			CHECK ELECTRICAL INTAKE AIR HEATER............................................................................................................................207
			REPLACE BUCKET TEETH (HORIZONTAL PIN TYPE)....................................................................................................................208
			ADJUST BUCKET CLEARANCE.......................................................................................................................................209
			REPLACE OF FAN BELT AND ADJUSTMENT OF AUTO TENSIONER..........................................................................................................210
			CHECK WINDOW WASHER FLUID LEVEL, ADD FLUID....................................................................................................................211
			CHECK AND ADJUST AIR CONDITIONER..............................................................................................................................212
			CLEAN LINE FILTER, REMOVE DIRT................................................................................................................................213
			BLEEDING AIR FROM HYDRAULIC SYSTEM............................................................................................................................214
			METHOD FOR RELEASING INTERNAL PRESSURE IN HYDRAULIC CIRCUIT...................................................................................................217
			CHECK NITROGEN GAS CHARGE PRESSURE IN ACCUMULATOR (CONTROL CIRCUIT)...........................................................................................218
		CHECK BEFORE STARTING.............................................................................................................................................219
		EVERY 10 HOURS MAINTENANCE........................................................................................................................................220
			LUBRICATING...................................................................................................................................................220
		EVERY 100 HOURS MAINTENANCE.......................................................................................................................................223
			LUBRICATING SWING CIRCLE......................................................................................................................................223
			DRAIN WATER AND SEDIMENT FROM FUEL TANK.......................................................................................................................223
		EVERY 250 HOURS MAINTENANCE.......................................................................................................................................224
			CHECK OIL LEVEL IN FINAL DRIVE CASE, ADD OIL..................................................................................................................224
			CHECK LEVEL OF BATTERY ELECTROLYTE............................................................................................................................225
			CHECK, CLEAN FUEL TANK STRAINER...............................................................................................................................228
			CHECK AND TIGHTEN TRACK FRAME AND AXLE CONNECTING BOLTS.......................................................................................................228
			CHECK ALTERNATOR DRIVE BELT TENSION, ADJUST...................................................................................................................229
			CHECK AIR CONDITIONER COMPRESSOR BELT TENSION, ADJUST (ONLY FOR MACHINES EQUIPPED WITH AIR CONDITIONER).......................................................230
		EVERY 500 HOURS MAINTENANCE.......................................................................................................................................231
			REPLACE FUEL FILTER CARTRIDGE.................................................................................................................................231
			CHECK SWING PINION GREASE LEVEL, ADD GREASE...................................................................................................................233
			CLEAN HYDRAULIC TANK STRAINER.................................................................................................................................234
			REPLACE HYDRAULIC OIL FILTER ELEMENT..........................................................................................................................235
			CLEAN AND INSPECT RADIATOR FINS, OIL COOLER FINS, AFTER COOLER FINS, FUEL COOLER FINS AND CONDENSER FINS (ONLY FOR MACHINES EQUIPPED WITH AIR CONDITIONER)....236
			CLEAN FRESH/RECIRC AIR FILTERS OF AIR CONDITIONER (ONLY FOR MACHINES EQUIPPED WITH AIR CONDITIONER)...........................................................237
			REPLACE PILOT FILTER ELEMENT..................................................................................................................................238
			CLEAN STRAINER OF P.T.O LUBRICATING OIL FILTER................................................................................................................239
			CHECK FAN BELT................................................................................................................................................239
			REPLACE DRAIN FILTER CARTRIDGE................................................................................................................................240
			CHANGE OIL IN ENGINE OIL PAN, REPLACE ENGINE OIL FILTER CARTRIDGE.............................................................................................241
		EVERY 1000 HOURS MAINTENANCE......................................................................................................................................243
			CHANGE OIL IN SWING MACHINERY CASE............................................................................................................................243
			CHANGE OIL IN P.T.O CASE......................................................................................................................................245
			CHECK ALL TIGHTENING PARTS OF TURBOCHARGER....................................................................................................................245
			CHECK PLAY TURBOCHARGER ROTOR.................................................................................................................................245
			REPLACE CORROSION RESISTOR CARTRIDGE..........................................................................................................................246
			LUBRICATING FAN PULLEY ASSEMBLY, TENSION PULLEY ASSEMBLY......................................................................................................246
			REPLACE HYDRAULIC TANK BREATHER FILTER ELEMENT................................................................................................................247
			CHECK WELDED STRUCTURE........................................................................................................................................248
			CHECK NITROGEN GAS CHARGE PRESSURE IN ACCUMULATOR (FOR BREAKER)...............................................................................................250
		EVERY 2000 HOURS MAINTENANCE......................................................................................................................................251
			CHANGE OIL IN FINAL DRIVE CASE................................................................................................................................251
			CHECK INJECTOR................................................................................................................................................251
			CLEAN ENGINE BREATHER.........................................................................................................................................252
			CLEAN, CHECK TURBOCHARGER.....................................................................................................................................252
			CHECK ALTERNATOR, STARTING MOTOR..............................................................................................................................252
			CHECK ENGINE VALVE CLEARANCE, ADJUST..........................................................................................................................252
		EVERY 4000 HOURS MAINTENANCE......................................................................................................................................253
			CHECK WATER PUMP..............................................................................................................................................253
			CHECK VIBRATION DAMPER........................................................................................................................................253
			CHECK FAN PULLEY AND TENSION PULLEY...........................................................................................................................253
			CHECK FOR LOOSENESS OF HIGH-PRESSURE CLAMP, HARDENING OF RUBBER...............................................................................................253
			CHECK FOR MISSING FUEL SPRAY PREVENTION CAP, HARDENING OF RUBBER..............................................................................................255
		EVERY 5000 HOURS MAINTENANCE......................................................................................................................................256
			CHANGE OIL IN HYDRAULIC TANK..................................................................................................................................256
		EVERY 8000 HOURS MAINTENANCE......................................................................................................................................257
			REPLACE HIGH-PRESSURE PIPING CLAMP............................................................................................................................257
			REPLACE FUEL SPRAY PREVENTION CAP.............................................................................................................................257
SPECIFICATIONS............................................................................................................................................................258
	SPECIFICATIONS........................................................................................................................................................259
ATTACHMENTS, OPTIONS......................................................................................................................................................261
	GENERAL PRECAUTIONS FOR SAFETY........................................................................................................................................262
		PRECAUTIONS WHEN SELECTING........................................................................................................................................262
		READ THE INSTRUCTION MANUAL THOROUGHLY............................................................................................................................262
		PRECAUTIONS WHEN REMOVING OR INSTALLING...........................................................................................................................262
		PRECAUTIONS WHEN USING............................................................................................................................................262
	ATTACHMENT GUIDE......................................................................................................................................................263
		COMBINATIONS OF WORK EQUIPMENT....................................................................................................................................263
LOADING SHOVEL............................................................................................................................................................266
	EXPLANATION OF COMPONENTS.............................................................................................................................................267
		SWITCHES..........................................................................................................................................................267
	OPERATIONS............................................................................................................................................................269
		OPERATION OF WORK EQUIPMENT.......................................................................................................................................269
		PRECAUTIONS DURING OPERATION......................................................................................................................................271
		EXCAVATOR WORK....................................................................................................................................................275
	PRECAUTIONS WHEN DISASSEMBLING MACHINE................................................................................................................................276
		RELEASING PRESSURE................................................................................................................................................276
	TRANSPORTATION........................................................................................................................................................277
		MACHINE CONFIGURATION FOR TRANSPORT...............................................................................................................................277
	WEAR PARTS............................................................................................................................................................278
		WEAR PARTS LIST...................................................................................................................................................278
	MAINTENANCE...........................................................................................................................................................279
		CHECK BEFORE STARTING.............................................................................................................................................279
		EVERY 10 HOURS MAINTENANCE........................................................................................................................................281
		EVERY 5000 HOURS MAINTENANCE......................................................................................................................................283
	SPECIFICATION.........................................................................................................................................................285
	COMBINATION OF WORK EQUIPMENT ........................................................................................................................................286
		COMBINATION OF WORK EQUIPMENT ....................................................................................................................................286
INDEX.....................................................................................................................................................................288

PLEASE NOTE:

⦁ This is the SAME exact manual used by your dealers to fix your vehicle.
⦁ The same can be yours in the next 2-3 mins as you will be directed to the download page immediately after paying for the manual.
⦁ Any queries / doubts regarding your purchase, please feel free to contact [email protected]