KOMATSU H285S HYDRAULIC SHOVEL SERVICE REPAIR MANUAL (SN:H285S 78094,78111&7813) KOMATSU H285S – PDF DOWNLOAD

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KOMATSU H285S HYDRAULIC SHOVEL SERVICE REPAIR MANUAL (SN:H285S 78094,78111&7813) KOMATSU H285S

KOMATSU H285S HYDRAULIC SHOVEL SERVICE REPAIR MANUAL (SN:H285S 78094,78111&7813) KOMATSU H285S – PDF DOWNLOAD: 

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KOMATSU H285S HYDRAULIC SHOVEL SERVICE REPAIR MANUAL (SN:H285S 78094,78111&7813) KOMATSU H285S

With this service manual MANNESMANN DEMAG BAUMASCHINENM provides you with the description of the construction and the function of the major systems of the hydraulic excavator H 285.
The service manual consists of 2 sections:
Section 1 General View
Section 2 Functional Description,
Inspections and Adjustments.
We describe for you all functions and how to carry out the inspections and adjustments.
How do you find “your” desired information?
In the table of contents all the functions and components are shown in sequence of description.

TABLE OF CONTENTS:

KOMATSU H285S HYDRAULIC SHOVEL SERVICE REPAIR MANUAL (SN:H285S 78094,78111&7813) KOMATSU H285S

MAIN MENU...........................................................................  0
COVER...............................................................................  1
FOREWORD............................................................................  3
CONTENTS............................................................................  7
PART 1..............................................................................  9
	DIVISION OF MACHINE............................................................. 10
	SUPERSTRUCTURE.................................................................. 12
	UNDERCARRIAGE................................................................... 14
	EQUIPMENT....................................................................... 16
	SPECIAL EQUIPMENT............................................................... 18
	TOOTH SYSTEMS................................................................... 20
	LUBRICATION..................................................................... 22
	REFILLING UNIT.................................................................. 32
	HYDRAULIC SYSTEM................................................................ 34
	CONTROL......................................................................... 38
	CONTROL UNITS................................................................... 40
	FILTERS OF THE HYDRAULIC OIL.................................................... 42
	ASSEMBLING THE EXCAVATOR........................................................ 44
PART 2.............................................................................. 74
	LIST OF CONTENTS................................................................ 74
	SHORT INFORMATION............................................................... 82
	HINTS FOR THE USER.............................................................. 84
	HINTS FOR THE HYDRAULIC CIRCUIT DIAGRAM......................................... 86
	ELECTRIC CIRCUIT DIAGRAM........................................................105
	HINTS FOR THE ELECTRIC CIRCUIT DIAGRAM..........................................108
	HINTS FOR CHECK AND ADJUSTMENTS.................................................114
	PROPULSION......................................................................115
		OVERVIEW DIESEL ENGINE......................................................115
		OVERVIEW ELECTRIC MOTOR.....................................................116
		ENGINE MOUNTINGS............................................................117
		SWITCHES, SENSORS AND FILTERS...............................................118
		RPM ADJUSTMENTS.............................................................120
		FAN DRIVE...................................................................125
		AIR FILTER..................................................................126
		COUPLING FOR DIESEL ENGINE DRIVEN MACHINES..................................127
		COUPLING FOR ELECTRIC MOTOR DRIVEN MACHINES.................................128
	PUMP DISTRIBUTOR GEAR...........................................................130
		GEAR LUBRICATION............................................................131
	HYDRAULIC PUMPS.................................................................133
	PUMP BEARING LUBRICATION........................................................134
	PUMP REGULATION.................................................................136
		FOR MACHINES WITH DIESEL ENGINE ONLY........................................136
			LOAD LIMIT REGULATION...................................................137
			PRESSURE CUT OFF VALVE..................................................143
			SETTING OF THE LOAD LIMIT VALVE.........................................144
			MEASURING AND SETTING OF THE PRESSURE OF THE PRESSURE CUT OFF VALVES....146
			MEASURING AND SETTING OF THE START OF DESTROKING  OF THE MAIN PUMPS.....148
			CHECKING WITH TEST BOLT.................................................149
		FOR MACHINES WITH ELECTRONIC MOTOR DRIVE....................................150
			BRIEF DESCRIPTION OF THE ELECTRONIC PARTS OF THE EGL....................152
			HYDRAULIC REGULATION....................................................153
			ADJUSTMENTS.............................................................160
			ADJUSTING WORKS FOR THE ELECTRONIC PUMP REGULATION......................168
			TROUBLESHOOTING/ELECTRONIC CONTROLLING..................................173
			MEASURING AND SETTING OF THE PRESSURE CUT OFF VALVES....................176
			MEASURING AND SETTING OF THE START OF DESTROKING OF THE MAIN PUMPS......178
			CHECKING WITH TEST BOLT.................................................179
	HYDRAULIC OIL COOLING...........................................................180
		FAN DRIVE...................................................................181
		MEASURING AND SETTING OF THE FAN SPEED......................................183
		COOLING CIRCUIT.............................................................186
		MEASURING AND SETTING OF THE BACK PRESSURE VALVE............................187
		CHECKS TO BE PERFORMED IF HYDRAULIC TEMPERATURE IS TOO HIGH.................188
	HYDRAULIC OIL TANK..............................................................189
	PILOT PRESSURE CIRCUITS.........................................................190
		OVERVIEW....................................................................190
		CONTROL OIL SUPPLY..........................................................191
		CHECKING AND ADJUSTMENTS....................................................193
		TRAVEL PARKING BRAKE........................................................194
		SLEW BRAKE HOUSE BRAKE......................................................196
		TRAVEL MOTION CONTROL WHEN USING A CABLE REEL...............................198
		PILOT PRESSURE CUT OFF FOR "BUCKET FILLING" AT TOO HOT HYDRAULIC OIL........199
		PRIORITY FOR STICK OR BOOM IN R.H. CONTROL BLOCK WITH A BHA.................200
	SERVICE LINE CIRCUITS...........................................................201
		SLEW CIRCUIT................................................................201
			CHECKS AND ADJUSTMENTS..................................................206
		TRAVEL MOTORS...............................................................209
			CHECKS AND ADJUSTMENTS..................................................210
		BUCKET CYLINDER.............................................................211
			CHECKS AND ADJUSTMENTS..................................................212
		CLAM CYLINDER...............................................................214
			CHECKS AND ADJUSTMENTS..................................................215
		STICK CYLINDER/LOADER ATTACHMENT............................................219
			CHECKS AND ADJUSTMENTS..................................................220
		BOOM CYLINDER/LOADER ATTACHMENT.............................................223
			CHECKS AND ADJUSTMENTS..................................................224
		BUCKET CYLINDER/BACK HOE ATTACHMENT.........................................227
			CHECKS AND ADJUSTMENTS..................................................228
		STICK CYLINDER/BACK HOE ATTACHMNET..........................................231
			CHECKS AND ADJUSTMENTS..................................................232
		BOOM CYLINDER/BACK HOE ATTACHMENT...........................................235
			CHECKS AND ADJUSTMENTS..................................................236
		HYDRAULIC TRACK ADJUSTING SYSTEM............................................239
			LEGEND..................................................................239
			FUNCTION................................................................240
	APPENDIX........................................................................247
		HYDRAULIC AIR CONDITION DRIVE...............................................249
			CHECKS AND ADJUSTMENTS..................................................250
			SERVICE MANUAL..........................................................252
		GENERATOR DRIVE.............................................................286
			CHECKS AND ADJUSTMENTS..................................................292
		LUBRICATION.................................................................300
			COMPRESSED AIR SYSTEM...................................................300
		SINGLE LINE CENTRALIZED LUBE SYSTEM.........................................304
			ELECTRICAL FUNCTION.....................................................308
			CHECKS AND ADJUSTMENTS..................................................312
		SLEW RING TOOTHING MIST LUBRICATION.........................................316
			ELECTRICAL FUNCTION.....................................................320
			CHECKS AND ADJUSTMENTS..................................................324
		SLEW RING TOOTHING DRIP LUBRICATION.........................................326
			ELECTRICAL FUNCTION.....................................................330
			CHECKS AND ADJUSTMENTS..................................................334
		CENTRAL LUBRICATION SYSTEM WITH ELECTRIC MOTOR DRIVE PUMPS..................336
			DESIGN..................................................................336
		SINGLE LINE CENTRALIZED LUBE SYSTEM.........................................338
			ELECTRICAL FUNCTION.....................................................342
			CHECKS AND ADJUSTMENTS..................................................346
		SLEW RING DRIP LUBRICATION..................................................348
			ELECTRICAL FUNCTION.....................................................352
			CHECKS AND ADJUSTMENTS..................................................356
		SL-1 AND SL-11 INJECTOR.....................................................358
		DIFFERENT TIME RELAYS.......................................................362
		CABLE REEL/ELECTRIC MACHINE.................................................368
			ELECTRICAL FUNCTION.....................................................370
			TRAVEL MOTION CONTROL...................................................372
			SWITCHING MECHANISM WITH SWITCHES 5S4...................................374
			REQUIRED ADJUSTMENTS/CHECKS.............................................376
PART 3..............................................................................378
	CONTENTS........................................................................378
	ELECTRICAL DIAGRAM..............................................................379

PLEASE NOTE:

⦁ This is not a physical manual but a digital manual – meaning no physical copy will be couriered to you. The manual can be yours in the next 2 mins as once you make the payment, you will be directed to the download page IMMEDIATELY.
⦁ This is the same manual used by the dealers inorder to diagnose your vehicle of its faults.
⦁ Require some other service manual or have any queries: please WRITE to us at [email protected]