Hitachi ZX470-6 ZX470LC-6 ZX490H-6 ZX490LCH-6 ZX490R-6 ZX490LCR-6 ZX530LCH-6 Hydraulic Excavator Technical Operational Principle Manual – PDF Download

Description

Hitachi ZX470-6 ZX470LC-6 ZX490H-6 ZX490LCH-6 ZX490R-6 ZX490LCR-6 ZX530LCH-6 Hydraulic Excavator Technical Operational Principle Manual

File Details:

Hitachi ZX470-6 ZX470LC-6 ZX490H-6 ZX490LCH-6 ZX490R-6 ZX490LCR-6 ZX530LCH-6 Hydraulic Excavator Technical Operational Principle Manual

• Manual Language:English
• Downloadable:Yes
• Pages: 474
• Size: 12.8 MB
• Format:PDF

HITACHI ZX470-6 ZX470LC-6 ZX490H-6 ZX490LCH-6 ZX490R-6 ZX490LCR-6 ZX530LCH-6 HYDRAULIC EXCAVATOR TECHNICAL OPERATIONAL PRINCIPLE MANUAL – PDF DOWNLOAD:

Image Preview:

Description:

Hitachi ZX470-6 ZX470LC-6 ZX490H-6 ZX490LCH-6 ZX490R-6 ZX490LCR-6 ZX530LCH-6 Hydraulic Excavator Technical Operational Principle Manual

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 ZX470-6 ZX470LC-6 ZX490H-6 ZX490LCH-6 ZX490R-6 ZX490LCR-6 ZX530LCH-6 Hydraulic Excavator Technical Operational Principle Manual

TOJAG50-EN-00..............................................................................................................  1
CONTENTS...................................................................................................................  3
INTRODUCTION...............................................................................................................  9
SYMBOL AND ABBREVIATION.................................................................................................... 11
SECTION AND GROUP CONTENTS................................................................................................. 13
SECTION 1GENERAL........................................................................................................... 15
	Group 1 Specifications................................................................................................. 17
		Specifications ZX470-6, 470LC-6.................................................................................... 17
		Working Ranges ZX470-6, 470LC-6.................................................................................... 18
		Specifications ZX490H-6, 490LCH-6.................................................................................. 19
		Working Ranges ZX490H-6, 490LCH-6.................................................................................. 20
		Specifications ZX530LCH-6.......................................................................................... 21
		Working Ranges ZX530LCH-6.......................................................................................... 22
	Group 2 Component Layout............................................................................................... 23
		Main Component..................................................................................................... 23
		Electrical System (Overview)....................................................................................... 25
		Electrical System (Rear Tray)...................................................................................... 26
		Electrical System (Switch Panel)................................................................................... 27
		Electrical System (Cab Behind Side)................................................................................ 28
		Engine 1........................................................................................................... 30
		Engine 2........................................................................................................... 31
		Aftertreatment Device.............................................................................................. 32
		Pump Device........................................................................................................ 33
		Control Valve...................................................................................................... 34
		DEF Tank........................................................................................................... 35
		Expansion Tank..................................................................................................... 35
		Check Valve........................................................................................................ 36
		Signal Control Valve............................................................................................... 36
		4-Spool Solenoid Valve Unit........................................................................................ 39
		2-Spool Solenoid Valve Unit........................................................................................ 39
		Fan Valve.......................................................................................................... 39
		Layout of Attachment Spec. Parts (Hydraulic System)................................................................ 40
	Group 3 Component Specifications....................................................................................... 45
		Engine............................................................................................................. 45
		Engine Accessories................................................................................................. 49
		Hydraulic Component................................................................................................ 51
		Electrical Component............................................................................................... 55
SECTION 2SYSTEM............................................................................................................ 59
	Group 1 Controller..................................................................................................... 61
		Outline............................................................................................................ 61
		CAN Circuit........................................................................................................ 62
	Group 2 Control System................................................................................................. 65
		Outline............................................................................................................ 65
		Engine Control..................................................................................................... 68
		Pump Control....................................................................................................... 98
		Valve Control (Standard)...........................................................................................126
		Other Control......................................................................................................158
	Group 3 Engine System..................................................................................................171
		Outline............................................................................................................171
		ECM System.........................................................................................................172
		Fuel Injection Control.............................................................................................174
		Fuel Injection Amount Correction Control...........................................................................182
		EGR Control........................................................................................................184
		Preheating Control.................................................................................................186
		Variable Turbocharger Control......................................................................................187
		Alarm Control......................................................................................................188
		Urea SCR System....................................................................................................189
		Engine Output Restriction Control (INDUCEMENT).....................................................................200
		Aftertreatment Device..............................................................................................204
		Aftertreatment Device Regeneration Control.........................................................................206
	Group 4 Hydraulic System...............................................................................................209
		Outline............................................................................................................209
		Pilot Circuit......................................................................................................210
		Main Circuit.......................................................................................................226
		Breaker/Pulverizer/Crusher Circuit (Optional)......................................................................252
	Group 5 Electrical System..............................................................................................261
		Outline............................................................................................................261
		Main Circuit.......................................................................................................262
		Electric Power Circuit (Key Switch: OFF)...........................................................................264
		CAN Circuit........................................................................................................266
		Accessory Circuit (Key Switch: ACC)................................................................................268
		Starting Circuit (Key Switch: START)...............................................................................270
		Charging Circuit (Key Switch: ON)..................................................................................272
		Surge Voltage Prevention Circuit...................................................................................276
		Pilot Shut-Off Circuit (Key Switch: ON)............................................................................278
		Auto Shut-Down Circuit/Automatic Engine Stop Circuit at Low Temperature............................................280
		Engine Stop Circuit................................................................................................282
		Monitor Circuit....................................................................................................285
		Security Circuit...................................................................................................286
		Radio Circuit......................................................................................................288
		Air Conditioner Circuit............................................................................................288
		Accessory Circuit..................................................................................................291
		Work Light Circuit.................................................................................................292
		Wiper/Washer Circuit...............................................................................................294
		Cab Light Circuit..................................................................................................296
SECTION 3COMPONENT OPERATION...............................................................................................301
	Group 1 Pump Device....................................................................................................303
		Outline............................................................................................................303
		Main Pump..........................................................................................................304
		Regulator..........................................................................................................306
		Pump Control Solenoid Valve........................................................................................314
		Fan Pump...........................................................................................................316
		Fan Pump Flow Rate Control.........................................................................................318
		Pilot Pump.........................................................................................................320
		Pump Delivery Pressure Sensor......................................................................................320
		Pump Control Pressure Sensor.......................................................................................320
	Group 2 Swing Device...................................................................................................321
		Outline............................................................................................................321
		Swing Reduction Gear...............................................................................................322
		Swing Motor........................................................................................................323
		Swing Parking Brake................................................................................................324
		Valve Unit.........................................................................................................326
	Group 3 Control Valve..................................................................................................329
		Outline............................................................................................................329
		Hydraulic Circuit..................................................................................................346
		Flow Combiner Valve................................................................................................352
		Main Relief valve..................................................................................................354
		Overload Relief Valve (with Make-Up Function)......................................................................358
		Boom Overload Relief Valve (Low Pressure)..........................................................................364
		Regenerative Valve.................................................................................................366
		Anti-Drift Valve...................................................................................................370
		Flow Rate Control Valve............................................................................................374
		Boom Lower Meter-In Cut Valve......................................................................................382
		Bypass Shut-Out Valve..............................................................................................384
		Auxiliary Flow Combiner Valve......................................................................................388
	Group 4 Pilot Valve....................................................................................................391
		Outline............................................................................................................391
		Operation (Front Attachment/Swing and Travel Pilot Valves).........................................................393
		Operation (Auxiliary, Counterweight Removal/Installation Pilot Valves).............................................401
		Shockless Function (Only for Travel Pilot Valve)...................................................................406
	Group 5 Travel Device..................................................................................................407
		Outline............................................................................................................407
		Travel Reduction Gear..............................................................................................408
		Travel Motor.......................................................................................................410
		Parking Brake......................................................................................................412
		Travel Brake Valve.................................................................................................414
		Overload Relief Valve..............................................................................................418
		Travel Mode Control................................................................................................420
	Group 6 Signal Control Valve...........................................................................................425
		Outline............................................................................................................425
		Pilot Port.........................................................................................................426
		Shuttle Valve......................................................................................................430
		Shockless Valve....................................................................................................434
		Pump 1 and Pump 2 Flow Rate Control Valves.........................................................................438
		Arm Flow Rate Control Valve Control Spool, Flow Combiner Valve Control Spool, Swing Parking Brake Release Spool....440
	Group 7 Others (Upperstructure)........................................................................................441
		Pilot Shut-Off Solenoid Valve......................................................................................441
		Solenoid Valve.....................................................................................................443
		Hose Rupture Valve (Optional)......................................................................................446
		Fan Motor..........................................................................................................450
		Fan Valve..........................................................................................................451
		Pilot Relief Valve.................................................................................................457
		Shockless Valve....................................................................................................458
		Accumulator (Pilot Circuit)........................................................................................460
		Accumulator (Attachment Circuit) (Optional)........................................................................461
		Selector Valve (Optional)..........................................................................................462
		Distribution Valve.................................................................................................464
	Group 8 Others (Undercarriage).........................................................................................467
		Swing Bearing......................................................................................................467
		Centerjoint........................................................................................................468
		Track Adjuster.....................................................................................................469
SERVICE MANUAL REVISION REQUEST FORM.......................................................................................473

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]