Hitachi ZX250LC-5B ZX250LCN-5B Hydraulic Excavator Workshop Manual (WDCA-EN-00) – PDF Download

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Hitachi ZX250LC-5B ZX250LCN-5B Hydraulic Excavator Workshop Manual (WDCA-EN-00)

File Details:

Hitachi ZX250LC-5B ZX250LCN-5B Hydraulic Excavator Workshop Manual (WDCA-EN-00)

• Manual Language:English
• Downloadable:Yes
• Pages: 582
• Size: 14.1 MB
• Format:PDF

HITACHI ZX250LC-5B ZX250LCN-5B HYDRAULIC EXCAVATOR WORKSHOP MANUAL (WDCA-EN-00) – PDF DOWNLOAD:

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Description:

Hitachi ZX250LC-5B ZX250LCN-5B Hydraulic Excavator Workshop Manual (WDCA-EN-00)

• To The Reader
  This manual is written for an experienced technician to provide technical information needed to maintain and repair this machine.
   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 ZX250LC-5B ZX250LCN-5B Hydraulic Excavator Workshop Manual (WDCA-EN-00)

WDCA-EN-00.........................................................................  1
INTRODUCTION.......................................................................  3
SYMBOL AND ABBREVIATION............................................................  5
SAFETY.............................................................................  7
SECTION AND GROUP CONTENTS......................................................... 47
SECTION 1 GENERAL.................................................................. 49
	Group 1 Precautions for Disassembling and Assembling........................... 51
		Precautions for Disassembling and Assembling............................... 51
	Group 2 Tightening............................................................. 57
		Tightening Bolts and Nuts.................................................. 57
		Piping Joint............................................................... 60
	Group 3 Painting............................................................... 65
		Painting................................................................... 65
	Group 4 Bleeding Air........................................................... 67
		Bleeding Air from Hydraulic Oil Tank....................................... 67
		Bleeding Air from Hydraulic System......................................... 68
		Bleeding Air from Fuel System.............................................. 69
		Bleeding Air from Radiator................................................. 71
	Group 5 Pressure Release Procedure............................................. 73
		Hydraulic Circuit Pressure Release Procedure............................... 73
	Group 6 Preparation............................................................ 75
		Preparation before Inspection and Maintenance.............................. 75
SECTION 2 MAINTENANCE STANDARD..................................................... 79
	Group 1 Upperstructure......................................................... 81
		Pump Device................................................................ 81
		Swing Motor................................................................ 85
	Group 2 Undercarriage.......................................................... 89
		Travel Motor............................................................... 89
		Sprocket................................................................... 91
		Front Idler................................................................ 93
		Upper Roller............................................................... 95
		Lower Roller............................................................... 96
		Track...................................................................... 97
	Group 3 Front Attachment.......................................................101
		Pin and Bushing............................................................101
		Side Cutter (2021232, 2021233).............................................103
		Point (4512365)............................................................104
		Standard Dimensions for Arm and Bucket Connection..........................105
		Standard Dimensions for Arm and Boom Connection............................106
		Cylinder...................................................................107
SECTION 3 UPPERSTRUCTURE...........................................................111
	Group 1 Cab....................................................................113
		Removal and Installation of Cab............................................113
		Dimensions of Cab Glass....................................................129
	Group 2 Counterweight..........................................................149
		Removal and Installation of Counterweight..................................149
	Group 3 Main Frame.............................................................151
		Removal and Installation of Main Frame.....................................151
	Group 4 Engine.................................................................159
		Removal and Installation of Engine.........................................159
	Group 5 Radiator Assembly......................................................183
		Replacement of Radiator, Oil Cooler, and Intercooler.......................183
	Group 6 Hydraulic Oil Tank.....................................................197
		Removal and Installation of Hydraulic Oil Tank.............................197
	Group 7 Fuel Tank..............................................................205
		Removal and Installation of Fuel Tank......................................205
	Group 8 Pump Device............................................................215
		Removal and Installation of Pump Device....................................215
		Removal and Installation of Coupling.......................................225
		Disassembly of Pump Device.................................................229
		Assembly of Pump Device....................................................237
		Disassembly of Regulator...................................................249
		Assembly of Regulator......................................................251
		Disassembly of Solenoid Valve..............................................253
		Assembly of Solenoid Valve.................................................255
		Structure of Pilot Pump....................................................257
	Group 9 Control Valve..........................................................259
		Removal and Installation of Control Valve..................................259
		Disassembly of Housing.....................................................279
		Assembly of Housing........................................................281
		Disassembly of Control Valve (A Side)......................................283
		Assembly of Control Valve (A Side).........................................291
		Disassembly of Control Valve (B Side)......................................303
		Assembly of Control Valve (B Side).........................................312
	Group 10 Swing Device..........................................................325
		Removal and Installation of Swing Device...................................325
		Disassembly of Swing Device................................................329
		Assembly of Swing Device...................................................334
		Disassembly of Swing Motor.................................................341
		Assembly of Swing Motor....................................................344
	Group 11 Pilot Valve...........................................................347
		Removal and Installation of Pilot Valve (Left).............................347
		Removal and Installation of Pilot Valve (Right)............................353
		Removal and Installation of Travel Pilot Valve.............................361
		Disassembly of Pilot Valves (Right and Left)...............................365
		Assembly of Pilot Valves (Right and Left)..................................368
		Disassembly of Travel Pilot Valve..........................................371
		Assembly of Travel Pilot Valve.............................................375
	Group 12 Solenoid Valve........................................................381
		Removal and Installation of Pilot Shut-Off Solenoid Valve..................381
		Removal and Installation of 5-SpoolSolenoid Valve Unit.....................385
		Removal and Installation of 2-SpoolSolenoid Valve Unit.....................389
		Disassembly of Pilot Shut-Off SolenoidValve................................393
		Assembly of Pilot Shut-Off Solenoid Valve..................................395
		Structure of 5-Spool Solenoid Valve Unit...................................397
		Structure of 2-Spool Solenoid Valve Unit...................................399
	Group 13 Signal Control Valve..................................................401
		Removal and Installation of Signal Control Valve...........................401
		Structure of Signal Control Valve..........................................407
	Group 14 Muffler Filter........................................................409
		Removal and Installation of Muffler Filter.................................409
		Disassembly of Muffler Filter..............................................421
		Assembly of Muffler Filter.................................................423
SECTION 4 UNDERCARRIAGE............................................................427
	Group 1 Swing Bearing..........................................................429
		Removal and Installation of Swing Bearing..................................429
		Disassembly of Swing Bearing...............................................433
		Assembly of Swing Bearing..................................................436
	Group 2 Travel Device..........................................................439
		Removal and Installation of Travel Device..................................439
		Disassembly of Travel Device...............................................443
		Assembly of Travel Device..................................................447
		Disassembly of Travel Motor................................................455
		Assembly of Travel Motor...................................................458
		Disassembly of Brake Valve.................................................463
		Assembly of Brake Valve....................................................465
		Precautions for Using Floating Seal........................................467
	Group 3 Center Joint...........................................................469
		Removal and Installation of Center Joint...................................469
		Disassembly of Center Joint................................................473
		Assembly of Center Joint...................................................475
		Replacement of Body and Spindle............................................478
	Group 4 Track Adjuster.........................................................479
		Removal and Installation of Track Adjuster.................................479
		Disassembly of Front Idler.................................................483
		Assembly of Front Idler....................................................486
		Disassembly of Track Adjuster..............................................489
		Assembly of Track Adjuster.................................................493
		Precautions for Using Floating Seal........................................497
	Group 5 Upper and Lower Rollers................................................499
		Removal and Installation of Upper Roller...................................499
		Removal and Installation of Lower Roller...................................503
		Disassembly of Lower Roller................................................509
		Assembly of Lower Roller...................................................511
		Precautions for Using Floating Seal........................................513
	Group 6 Track..................................................................515
		Removal and Installation of Track..........................................515
SECTION 5 FRONT ATTACHMENT.........................................................523
	Group 1 Front Attachment.......................................................525
		Removal and Installation of Front Attachment...............................525
	Group 2 Cylinder...............................................................533
		Removal and Installation of Boom Cylinder..................................533
		Removal and Installation of Arm Cylinder...................................537
		Removal and Installation of Bucket Cylinder................................543
		Removal and Installation of Positioning Cylinder...........................547
		Disassembly of Boom, Arm, Bucket Cylinders.................................551
		Assembly of Boom, Arm, Bucket Cylinders....................................555
		Disassembly of Positioning Cylinder........................................559
		Assembly of Positioning Cylinder...........................................562
	Group 3 Hose Rupture Valve.....................................................565
		Removal and Installation of Hose Rupture Valve for Boom Cylinder...........565
		Removal and Installation of Hose Rupture Valve for Arm Cylinder............567
		Removal and Installation of Hose Rupture Valve for Positioning Cylinder....569
		Structure of Hose Rupture Valve for Boom Cylinder (Right)..................571
		Structure of Hose Rupture Valve for Boom Cylinder (Left)...................573
		Structure of Hose Rupture Valve for Arm Cylinder...........................575
		Structure of Hose Rupture Valve for Positioning Cylinder...................577
SERVICE MANUAL REVISION REQUEST FORM...............................................581

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]