Hitachi LX70-7 LX80-7 Wheel Loader Workshop Manual (W077E-02) – PDF Download

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Hitachi LX70-7 LX80-7 Wheel Loader Workshop Manual (W077E-02)

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Hitachi LX70-7 LX80-7 Wheel Loader Workshop Manual (W077E-02)

• Manual Language:English
• Downloadable:Yes
• Pages: 408
• Size:22.5 MB
• Format:PDF

HITACHI LX70-7 LX80-7 WHEEL LOADER WORKSHOP MANUAL (W077E-02) – PDF DOWNLOAD:

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DESCRIPTION:

Hitachi LX70-7 LX80-7 Wheel Loader Workshop Manual (W077E-02)

• With our pursuit of technological researches and vast experiences, we have been developing products of superior quality and reliability for complete customer satisfaction.
• To use the machines safely with its full performance for a long time, proper handling and periodical inspections/maintenance are essential.
• This manual describes mainly disassembly, inspection, assembly and adjustment of the main components and systems of the wheel loaders. For the structure and the principle of operation, refer to the service manual. We hope this manual will be your good companion in your servicing jobs.
• The values and descriptions given in this manual are subject to change owing to change of design or some other reason.

TABLE OF CONTENTS:

Hitachi LX70-7 LX80-7 Wheel Loader Workshop Manual (W077E-02)

COVER.......................................................................................  1
IMPORTANT SAFETY NOTICE.....................................................................  3
FOREWORD....................................................................................  5
0. GENERAL DESCRIPTION......................................................................  7
	01. SAFETY PRECAUTIONS..................................................................  9
	02. FUNDAMENTAL KNOWLEDGE OF MAINTENANCE................................................ 12
	03. CLEANING............................................................................ 15
	04. STANDARD BOLT TIGHTENING TORQUE..................................................... 16
	05. LUBRICATION......................................................................... 22
	06. SAFETY PARTS TO BE REPLACED PERIODICALLY............................................ 25
1. POWER TRAIN.............................................................................. 27
	11. DISASSMBLY AND REASSEMBLY OF HST PUM................................................ 29
		11.1 DISASSEMBLY OF HST PUMP ....................................................... 31
		11.2 REASSEMBLY OF HST PUMP......................................................... 33
		11.3 DISASSMBLY AND REASSEMBLY OF COMBINATION VALVE 1............................... 35
		11.4 DISASSMBLY AND REASSEMBLY OF COMBINATION VALVE 2............................... 38
		11.5 STANDARD VALUES FOR MAINTENANCE................................................ 40
	12. DISASSEBLY AND REASSEMBLY OF TRANSMISSION........................................... 41
		12.1 DISASSMBLY OF TRANSMISSION..................................................... 41
			12.1.1 PREPARATION.............................................................. 41
			12.1.2 DISASSEMBLY OF TRANSMISSION CASE......................................... 41
			12.1.3 DISASSEMBLY OF CLUTCH ASSEMBLY........................................... 46
			12.1.4 DISASSEMBLY OF CONTROL VALVE............................................. 49
			12.1.5 DISASSEMBLY OF OUTPUT SHAFT.............................................. 49
		12.2 REASSEMBLY  OF TRANSMISSION.................................................... 51
			12.2.1 REASSEMBLY OF OUTPUT SHAFT............................................... 51
			12.2.2 REASSEMBLY OF CONTROL VALVE.............................................. 52
			12.2.3 REASSEMBLY OF CLUTCH ASSEMBLY............................................ 54
			12.2.4 REASSEMBLY OF TRANSMISSION CASE.......................................... 58
		12.3 STANDARD VALUES FOR MAINTENANCE................................................ 64
	13. DESASSEMBLY AND REASSEMBLY OF DRIVE AXLE............................................ 69
		13.1 DISASSEMBLY.................................................................... 69
		13.2 REASSEMBLY..................................................................... 79
		13.3 TROUBLESHOOTING................................................................ 96
		13.4 STANDARD VALUES FOR MAINTENANCE................................................ 98
		13.5 TIGHTENING TORQUE VALUES FOR MAIN BOLTS........................................ 99
2. BRAKE SYSTEM.............................................................................101
	21. DISASSEMBLY AND REASSEMBLY OF BRAKE VALVE...........................................103
		21.1 DISASSEMBLY....................................................................104
		21.2 REASSEMBLY.....................................................................105
3. STEERING SYSTEM..........................................................................107
	31. DISASSEMBLY AND REASSEMBLY OF ORBITROL..............................................109
		31.1 DISASSEMBLY....................................................................110
		31.2 REASSEMBLY.....................................................................113
	32. DISASSEMBLY ADN REASSEMBLY OF STEERING CYLINDER.....................................117
		32.1 DISASSEMBLY....................................................................118
		32.2 INSPECTION.....................................................................119
		32.3 REASSEMBLY.....................................................................120
	33. DISASSEMBLY AND REASSEMBLY OF PRIORITY VALVE........................................123
		33.1 DISASSEMBLY....................................................................124
		33.2 REASSEMBLY.....................................................................124
4. HYDRAULIC SYSTEM.........................................................................125
	41. DISASSEMBLY AND REASSEMBLY OF MAIN PUMP.............................................127
	42. DISASSEMBLY AND REASSEMBLY OF MAIN VALVE............................................130
		42.1 DISASSEMBLY....................................................................131
		42.2 TREATMENT AFTER DISASSEMBLY....................................................132
		42.3 REASSEMBLY.....................................................................133
		42.4 ADJUSTMENT OF RELIEF VALVE.....................................................135
	43A. DISASSEMBLY AND REASSEMBLY FO BOOM CYLINDER AND BUCKET CYLINDER (L12-3, LX70-7)....136
		43A.1 DISASSEMBLY...................................................................137
		43A.2 INSPECTION....................................................................138
		43A.3 REASEMBLY.....................................................................139
	43B. DISASSEMBLY AND REASSEMBLY OF BUCKET CYLINDER (L16-3, LX80-7)......................142
		43B.1 DISASSEMBLY...................................................................143
		43B.2 INSPECTION....................................................................144
		43B.3 REASSEMBLY....................................................................145
	44. DISASSEMBLY AND REASSEMBLY OF TRAVEL DAMPER VALVE FOR APS (OPTION)..................148
		44.1 DISASSEMBLY....................................................................149
		44.2 TREATMENT AFTER DISASSEMBLY....................................................151
		44.3 REASSEMBLY.....................................................................151
		44.4 ADJUSTMENT OF PRESSURE REDUCING VALVE SET PRESSURE.............................153
		44.5 MAINTENACE PROCEDURE OF SOLENOID VALVE.........................................154
5. ELECTRIC UNIT............................................................................157
	51. ELECTRICAL EQUIPMENT LAYOUT DRAWING.................................................159
	52. WIRE HARNESS (REFERENCE)............................................................166
	53. STARTING SYSTEM ELECTRIC CIRCUIT....................................................177
	54. ELECTRIC CIRCUIT DIAGRAM............................................................179
6. ENGINE AND ACCESSORY.....................................................................183
	GENERAL INFORMATION.....................................................................187
	MAINTENANCE.............................................................................213
	ENGINE ASSEMBLY 1.......................................................................233
	ENGINE ASSEMBLY 2.......................................................................249
	ENGINE ASSEMBLY 3.......................................................................279
	LUBRICATING SYSTEM......................................................................309
	FUEL SYSTEM.............................................................................319
	TURBOCHARGER............................................................................329
	AIR COMPRESSOR..........................................................................333
	ENGINE ELECTRICALS......................................................................341
	TROUBLESHOOTING.........................................................................349
	SPECIAL TOOL LIST.......................................................................373
	REPAIR STANDARDS........................................................................377
	CONVERSION TALBE........................................................................397
REVISION REQUEST FORM.......................................................................407

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⦁ This is the same manual used by the dealers to diagnose and troubleshoot your vehicle
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