Hitachi ZW180-6 Wheel Loader Operational Principle Technical Manual (TOPD850-EN-00) – PDF Download

Description

Hitachi ZW180-6 Wheel Loader Operational Principle Technical Manual (TOPD850-EN-00)

File Details:

Hitachi ZW180-6 Wheel Loader Operational Principle Technical Manual (TOPD850-EN-00)

• Manual Language:English
• Pages: 499
• Size: 11.5 MB
• Downloadable:Yes
• Format:PDF

HITACHI ZW180-6 WHEEL LOADER OPERATIONAL PRINCIPLE TECHNICAL MANUAL (TOPD850-EN-00) – PDF DOWNLOAD:

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Description:

Hitachi ZW180-6 Wheel Loader Operational Principle Technical Manual (TOPD850-EN-00)

To The Reader
This manual is written for an experienced technician to provide technical information needed to maintain and repair this machine.
The machine specification and description according to destination may be explained on this manual.
 Be sure to thoroughly read this manual for correct product information and service procedures.
 If you have any questions or comments, at if you found any errors regarding the contents of this manual, please contact using “Service Manual Revision Request Form” at the end of this manual.
Additional References
Please refer to the other materials (operator’s manual, parts catalog, engine technical material and Hitachi training material etc.) in addition to this manual.
Manual Composition
This manual consists the Technical Manual, the Workshop Manual and the Engine Manual.
 Information included in the Technical Manual: Technical information needed for redelivery and delivery, operation and activation of all devices and systems, operational performance tests, and troubleshooting procedures.
 Information included in the Workshop Manual: Technical information needed for maintenance and repair of the machine, tools and devices needed for maintenance and repair, maintenance standards, and removal / installation and assemble / disassemble procedures.
 Information included in the Engine Manual: Technical information needed for redelivery and delivery and maintenance and repair of the machine, operation and activation of all devices and systems, troubleshooting and assemble / disassemble procedures.

Table Of Contents:

Hitachi ZW180-6 Wheel Loader Operational Principle Technical Manual (TOPD850-EN-00)

TOPD850-EN-00....................................................................  1
	CONTENTS.....................................................................  3
	INTRODUCTION................................................................. 11
	SYMBOL AND ABBREVIATION...................................................... 13
	SECTION AND GROUP CONTENTS................................................... 15
	SECTION 1 GENERAL............................................................ 17
		Group 1 Specifications................................................... 19
			Specifications....................................................... 19
		Group 2 Component Layout................................................. 21
			Main Component (Overview)............................................ 21
			Main Component....................................................... 23
			Electrical System (Overview)......................................... 25
			Air Cleaner and Radiator Assembly.................................... 26
			Battery Box.......................................................... 28
			Hydraulic Oil Tank................................................... 29
			Fuel Tank............................................................ 30
			Drive Unit........................................................... 31
			Front Axle........................................................... 32
			Cab.................................................................. 33
			Engine............................................................... 39
			Aftertreatment Device................................................ 40
			Fan Valve (Optional)................................................. 41
			Priority Valve....................................................... 41
			Pump Device.......................................................... 42
			Control Valve........................................................ 42
			Manifold Valve....................................................... 43
			Parking Brake Solenoid Valve Block................................... 43
			Brake Charge Valve................................................... 43
			Ride Control Valve (Optional)........................................ 44
			Emergency Steering Block (Optional).................................. 45
			Emergency Steering Pump (Optional)................................... 45
			Flow Regulator Valve................................................. 45
			DEF Tank............................................................. 46
			DEF Supply Module.................................................... 46
		Group 3 Component Specifications......................................... 47
			Engine............................................................... 47
			Engine Accessories................................................... 51
			Hydraulic Component.................................................. 52
			Electrical Component................................................. 57
	SECTION 2 SYSTEM............................................................. 61
		Group 1 Controller....................................................... 63
			Outline.............................................................. 63
			CAN Circuit.......................................................... 64
		Group 2 Control System................................................... 67
			Outline.............................................................. 67
			Engine Control (ECM)................................................. 70
			Pump Control.........................................................105
			Transmission Control (TCU)...........................................110
			Forward/Reverse Lever Priority Control (Option)......................114
			Fan Control, Valve Control...........................................129
			Control by Electrical and Hydraulic Combined Circuit.................159
		Group 3 Engine System....................................................165
			Outline..............................................................165
			ECM System...........................................................166
			Fuel Injection Control...............................................168
			Fuel Injection Amount Correction Control.............................176
			EGR Control..........................................................178
			Preheating Control...................................................180
			Variable Turbocharger Control........................................181
			Alarm Control........................................................182
			Urea SCR System......................................................183
			Engine Output Restriction Control (INDUCEMENT).......................194
			Aftertreatment Device................................................200
			Aftertreatment Device Regeneration Control...........................202
		Group 4 Hydraulic System.................................................205
			Outline..............................................................205
			Pilot Circuit........................................................206
			Main Circuit.........................................................228
			Fan Circuit..........................................................246
			Emergency Steering Circuit (Option)..................................248
		Group 5 Electrical System................................................251
			Outline..............................................................251
			Main Circuit.........................................................252
			Electric Power Circuit (Key Switch: OFF).............................254
			CAN Circuit..........................................................256
			Accessory Circuit (Key Switch: ACC)..................................258
			Starting Circuit (Key Switch: START).................................260
			Charging Circuit (Key Switch: ON)....................................262
			Surge Voltage Prevention Circuit.....................................266
			Pilot Shut-Off Circuit (Key Switch: ON)..............................268
			Auto Shut-Down Circuit (Option)......................................270
			Engine Stop Circuit..................................................272
			Air Conditioner Circuit..............................................274
			Steering Column Box Circuit..........................................277
			Headlight Circuit....................................................278
			Hazard Light Circuit (Key Switch: OFF)...............................284
			Turn Signal Light Circuit............................................286
			Horn Circuit (Key Switch: OFF).......................................288
			Back Buzzer Circuit..................................................290
			Brake Light Circuit..................................................292
			Parking Brake Circuit................................................294
			Accessory Circuit....................................................299
			Work Light Circuit...................................................300
			Wiper Circuit........................................................302
			Cab Light Circuit....................................................308
	SECTION 3
COMPONENT OPERATION................................................313
		Group 1 Pump Device......................................................315
			Outline..............................................................315
			Main Pump............................................................316
			Regulator............................................................318
			Pilot Pump...........................................................332
			Pump Delivery Pressure Sensor........................................332
		Group 2 Control Valve....................................................333
			Outline..............................................................333
			Hydraulic Circuit....................................................340
			Main Relief Valve....................................................346
			Overload Relief Valve (with Make-Up Function)........................348
			Overload Relief Valve (Lift Arm Bottom Side, Bucket Bottom Side).....352
			Flow Rate Control Valve..............................................356
			Pump Control Valve...................................................358
		Group 3 Cooling Fan System...............................................361
			Fan Pump.............................................................361
			Fan Motor............................................................362
			Fan Valve............................................................363
		Group4 Steering Valve....................................................371
			Outline..............................................................371
			Structure............................................................372
			Operation............................................................373
			Overload Relief Valve................................................376
			Make-Up Valve........................................................378
		Group 5 Priority Valve...................................................381
			Outline..............................................................381
			Structure............................................................382
			Operation............................................................384
		Group 6 Pilot Valve......................................................391
			Outline (Fingertip Control Type Pilot Valve for Front Attachment)....391
			Operation............................................................392
			Electromagnetic Detent...............................................396
			Outline (Joystick Type Pilot Valve for Front Attachment).............397
			Operation............................................................399
			Electromagnetic Detent...............................................406
		Group 7 Brake Charge Valve / Manifold Valve..............................407
			Outline..............................................................407
			Brake Charge Valve...................................................408
			Manifold Valve.......................................................413
			Pilot Relief Valve...................................................414
			Torque Control Solenoid Valve........................................415
			Control Lever Lock Solenoid Valve....................................417
			Service Brake Accumulator............................................418
			Pilot Accumulator....................................................419
		Group 8 Drive Unit.......................................................421
			Outline..............................................................421
			Torque Converter.....................................................426
			Transmission.........................................................428
			Operation of Transmission............................................430
			Transmission Control Valve...........................................446
			Drive Unit Circuit...................................................448
		Group 9 Axle.............................................................449
			Outline..............................................................449
			Differential.........................................................450
			Torque Proportioning Differential (TPD)..............................454
			Limited Slip Differential (LSD) (Optional)...........................456
			Service Brake........................................................458
			Final Drive / Axle Shaft.............................................460
		Group 10 Brake Valve.....................................................461
			Outline..............................................................461
			Operation............................................................464
		Group 11 Ride Control Valve..............................................471
			Outline..............................................................471
			Charge-Cut Spool.....................................................476
			Overload Relief Valve................................................478
			Drain Plug...........................................................482
		Group 12 Others..........................................................483
			Propeller Shaft......................................................483
			Parking Brake Solenoid Valve Unit....................................485
			Parking Brake Solenoid Valve.........................................486
			Parking Brake Accumulator............................................488
			Flow Regulator Valve.................................................489
			Steering Accumulator.................................................492
			Ride Control Accumulator (Option)....................................492
			Torque Converter Cooler Check Valve..................................493
			Pilot Oil Filter.....................................................494
			Emergency Steering Check Block (Option)..............................495
			Emergency Steering Pump (Option).....................................496
SERVICE MANUAL REVISION REQUEST FORM.............................................499

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