Hitachi ZAXIS 850-3, 850LC-3, 870H-3, 870LCH-3 Hydraulic Excavators Repair Service Manuals
Hitachi ZAXIS 850-3, 850LC-3, 870H-3, 870LCH-3 Hydraulic Excavators Repair Service Manuals
Complete service repair manual with Electrical Wiring Diagrams for Hitachi ZAXIS 850-3, 850LC-3, 870H-3, 870LCH-3 Hydraulic Excavators, with all the shop information to maintain, diagnose, repair, and refurbish/rebuild like professional mechanics.
Hitachi ZAXIS 850-3, 850LC-3, 870H-3, 870LCH-3 Hydraulic Excavators workshop service & repair manual includes:
* Numbered table of contents easy to use so that you can find the information you need fast.
* Detailed sub-steps expand on repair procedure information
* Numbered instructions guide you through every repair procedure step by step.
* Troubleshooting and electrical service procedures are combined with detailed wiring diagrams for ease of use.
* Notes, cautions and warnings throughout each chapter pinpoint critical information.
* Bold figure number help you quickly match illustrations with instructions.
* Detailed illustrations, drawings and photos guide you through every procedure.
* Enlarged inset helps you identify and examine parts in detail.
Total Pages: 3,022 pages
File Format: PDF (bookmarked, ToC, Searchable, Printable, high quality)
Language: English
MANUAL LIST:
TO1JBE00 - Hitachi ZAXIS 850-3, 850LC-3, 870H-3, 870LCH-3 Hydraulic Excavator Technical Manual (Operational Principle).pdf
TT1JBE00 - Hitachi ZAXIS 850-3, 850LC-3, 870H-3, 870LCH-3 Hydraulic Excavator Technical Manual (Troubleshooting).pdf
W1JBE00 - Hitachi ZAXIS 850-3, 850LC-3, 870H-3, 870LCH-3 Hydraulic Excavator Workshop Manual.pdf
EM1JB11 - Hitachi ZAXIS 850-3, 850LC-3, 870H-3, 870LCH-3 Hydraulic Excavator Operator's Manual.pdf
EM1JB12 - Hitachi ZAXIS 850-3, 850LC-3, 870H-3, 870LCH-3 Hydraulic Excavator Operator's Manual.pdf
EM17V21 - Hitachi ZAXIS 800, 850H Excavator Operator's Manual.pdf
KO28200 - Hitachi ZAXIS 800, 850H Assembly Procedure Manual.pdf
KO28200 - Hitachi ZAXIS 800, 850H Excavator Assembly Procedure Manual.pdf
KO28900 - Hitachi ZAXIS 800, 850H Excavator Daily & Weekly Maintenance Check Sheets.pdf
T1JBE00 (attach to) - Hitachi ZAXIS 850-3 Electrical Circuit Diagram.pdf
T1JBE00 (attach to) - Hitachi ZAXIS 850-3 Hydraulic Circuit Diagram (Backhoe).pdf
TABLE OF CONTENTS
SECTION 1 GENERAL INFORMATION
Group 1 Precautions for disassembling and Assembling
Group 2 Tightening Torque
Group 3 Painting
Group 4 Bleeding Air from Hydraulic Oil Tank
SECTION 2 UPPERSTRUCTURE
Group 1 Cab
Group 2 Counterweight
Group 3 Main Frame
Group 4 Pump Device
Group 5 Control Valve
Group 6 Swing Device
Group 7 Pilot Valve
Group 8 Pilot Shut-Off Solenoid Valve
Group 9 Solenoid Valve
Group 10 Signal Control Valve
Group 11 Shockless Valve
Group 12 Fan Motor
Group 13 Fan Valve
Group 14 Engine
SECTION 3 UNDERCARRIAGE
Group 1 Swing Bearing
Group 2 Travel Device
Group 3 Center Joint
Group 4 Track Adjuster
Group 5 Front Idler
Group 6 Upper and Lower Roller
Group 7 Track
SECTION 4 FRONT ATTACHMENT
Group 1 Front Attachment
Group 2 Cylinder
...
TECHNICAL MANUAL (Operational Principle)
SECTION 1 GENERAL
Group 1 Specification
Group 2 Component Layout
Group 3 Component Specifications
SECTION 2 SYSTEM
Group 1 Controller
Group 2 Control System
Group 3 ECM System
Group 4 Hydraulic System
Group 5 Electrical System
SECTION 3 COMPONENT OPERATION
Group 1 Pump Device
Group 2 Swing Device
Group 3 Control Valve
Group 4 Pilot Valve
Group 5 Travel Device
Group 6 Signal Control Valve
Group 7 Others (Upperstructure)
Group 8 Others (Undercarriage)
TECHNICAL MANUAL (Troubleshooting)
SECTION 4 OPERATIONAL PERFORMANCE TEST
Group 1 Introduction
Group 2 Standard
Group 3 Engine Test
Group 4 Excavator Test
Group 5 Component Test
Group 6 Adjustment
SECTION 5 TROUBLESHOOTING
Group 1 Diagnosing Procedure
Group 2 Monitor Unit
Group 3 Dr. ZX
Group 4 ICF
Group 5 Component Layout
Group 6 Troubleshooting A
Group 7 Troubleshooting B
Group 8 Electrical System Inspection
EM17V21 - Hitachi ZAXIS 800, 850H Excavator Operator's Manual....1
COVER....1
INTRODUCTION....2
INDEX....3
MACHINE NUMBERS....5
CONTENTS....9
SAFETY....13
SAFETY SIGNS....41
COMPONENTS NAME....47
GETTING ON / OFF THE MACHINE....48
OPERATOR'S STATION....49
BREAK-IN....99
OPERATING THE ENGINE....101
DRIVING THE MACHINE....111
OPERATING THE MACHINE....121
ASSEMBLING....151
TRANSPORTING....176
MAINTENANCE....201
MAINTENANCE UNDER SPECIAL ENVIRONMENTAL CONDITIONS....307
STORAGE....309
TROUBLESHOOTING....315
SPECIFICATIONS....327
OPTIONAL ATTACHMENTS AND DEVICES....345
INDEX....357
EM1JB11 - Hitachi ZAXIS 850-3, 850LC-3, 870H-3, 870LCH-3 Hydraulic Excavator Operator's Manual....363
EM1JB12 - Hitachi ZAXIS 850-3, 850LC-3, 870H-3, 870LCH-3 Hydraulic Excavator Operator's Manual....729
EM1JB-1-2....729
INTRODUCTION....730
INDEX....731
MACHINE NUMBERS....733
CONTENTS....737
SAFETY....741
RECOGNIZE SAFETY INFORMATION....741
UNDERSTAND SIGNAL WORDS....741
FOLLOW SAFETY INSTRUCTIONS....742
PREPARE FOR EMERGENCIES....742
WEAR PROTECTIVE CLOTHING....743
PROTECT AGAINST NOISE....743
INSPECT MACHINE....743
GENERAL PRECAUTIONS FOR CAB....744
USE HANDHOLDS AND STEPS....745
ADJUST THE OPERATOR'S SEAT....745
ENSURE SAFETY BEFORE RISING FROM OR LEAVING....745
FASTEN YOUR SEAT BELT....746
MOVE AND OPERATE MACHINE SAFELY....746
HANDLE STARTING AIDS SAFELY....746
OPERATE ONLY FROM OPERATOR'S SEAT....747
JUMP STARTING....747
KEEP RIDERS OFF MACHINE....747
PRECAUTIONS FOR OPERATIONS....748
INVESTIGATE JOB SITE BEFOREHAND....749
EQUIPMENT OF HEAD GUARD, ROPS, FOPS....750
PROVIDE SIGNALS FOR JOBS INVOLVING MULTIPLE....750
CONFIRM DIRECTION OF MACHINE TO BE DRIVEN....750
DRIVE MACHINE SAFELY....751
AVOID INJURY FROM ROLLAWAY ACCIDENTS....753
AVOID INJURY FROM BACK-OVER AND SWING....754
KEEP PERSON CLEAR FROM WORKING AREA....755
NEVER POSITION BUCKET OVER ANYONE....755
AVOID UNDERCUTTING....755
AVOID TIPPING....756
NEVER UNDERCUT A HIGH BANK....756
DIG WITH CAUTION....757
OPERATE WITH CAUTION....757
AVOID POWER LINES....758
PRECAUTIONS FOR LIGHTENING....758
OBJECT HANDLING....758
PROTECT AGAINST FLYING DEBRIS....759
PARK MACHINE SAFELY....759
HANDLE FLUIDS SAFELY.AVOID FIRES....759
TRANSPORT SAFELY....760
PRACTICE SAFE MAINTENANCE....761
WARN OTHERS OF SERVICE WORK....762
SUPPORT MACHINE PROPERLY....762
STAY CLEAR OF MOVING PARTS....762
PREVENT PARTS FROM FLYING....763
STORE ATTACHMENTS SAFELY....763
PREVENT BURNS....764
REPLACE RUBBER HOSES PERIODICALLY....764
AVOID HIGH-PRESSURE FLUIDS....765
PREVENT FIRES....766
EVACUATING IN CASE OF FIRE....767
BEWARE OF EXHAUST FUMES....767
PRECAUTIONS FOR WELDING AND GRINDING....767
AVOID HEATING NEAR PRESSURIZED FLUID LINES....768
AVOID APPLYING HEAT TO LINES CONTAINING....768
REMOVE PAINT BEFORE WELDING OR HEATING....768
BEWARE OF ASBESTOS DUST....769
PREVENT BATTERY EXPLOSIONS....769
SERVICE AIR CONDITIONING SYSTEM SAFELY....769
HANDLE CHEMICAL PRODUCTS SAFELY....770
DISPOSE OF WASTE PROPERLY....770
SAFETY SIGNS/Europe/Asia/Middle and Near East Model Only....771
SAFETY SIGNS/North America and Oceania Model Only....778
COMPONENTS NAME....783
GETTING ON / OFF THE MACHINE....784
OPERATOR'S STATION....785
CAB FEATURES....785
MULTI FUNCTION MONITOR....787
OUTLINE....788
Menu Screen (23)....791
Hour Meter....792
Fuel Gauge....792
Clock....792
Back Monitor Selector....792
Menu Key....793
Optional Function Key....793
Return to Basic Screen Key....793
Alarm Light....793
Optional Function Display....793
Coolant Temperature Gauge....794
Operating Status Icon Display....794
ALARM OCCURRENCE SCREEN....799
CONTENTS OF ALARMS....801
Clock Setting....803
ATTACHMENT SELECTION....804
PUMP 2 FLOW RATE ADJUSTMENT....807
DISPLAYING OPERATING CONDITIONS....808
FUEL RATE DISPLAY/NO DISPLAY....809
BACK MONITOR SETTINGS....817
MAINTENANCE SETTINGS....824
Mail....829
LANGUAGE SETTINGS....831
SWITCH PANEL....833
ENGINE CONTROL DIAL....834
AUTO-IDLE SWITCH....834
POWER MODE SWITCH....835
TRAVEL MODE SWITCH....835
WORK LIGHT SWITCH....836
WIPER/WASHER SWITCH....837
SWITCH PANEL (Optional included)....838
FAN ROTATING DIRECTION DEVICE(Optional)....842
KEY SWITCH....843
POWER BOOST SWITCH....843
HORN SWITCH....843
CIGAR LIGHTER....844
CAB LIGHT....845
INSTALLING FIRE EXTINGUISHER (Optional)....845
PILOT CONTROL SHUT-OFF LEVER....846
ENGINE STOP SWITCH....846
FUSE BOX....847
ADDITIONAL FUSE BOX....847
AIR CONDITIONER OPERATION....848
AUTO AIR CONDITIONER....849
CAB HEATER OPERATION....854
COOLING OPERATION....854
DEFROSTER OPERATION....855
TIPS FOR OPTIMAL AIR CONDITIONER USAGE....856
AM/FM RADIO OPERATION....857
DIGITAL CLOCK SETTING PROCEDURE....858
CAB DOOR RELEASE LEVER....859
OPENING UPPER FRONT WINDOW....859
CLOSING UPPER FRONT WINDOW....860
REMOVING AND STORING LOWER FRONT....861
OPENING SIDE WINDOWS....861
OPENING/CLOSING OVERHEAD WINDOW....862
OPENING/CLOSING OVERHEAD WINDOW....862
EMERGENCY EXIT....863
EMERGENCY EXIT....864
ADJUSTING THE SEAT....865
ADJUSTING THE SEAT (HEATER SEAT OPTIONAL)....867
SEAT WITH A BUILT-IN HEATER....868
ADJUSTING THE AIR-SUSPENSION SEAT....869
SEAT WITH A BUILT-IN HEATER....870
ADJUSTING CONSOLE HEIGHT....871
SEAT BELT....872
BREAK-IN....873
OBSERVE ENGINE OPERATION CLOSELY....873
EVERY 8 HOURS OR DAILY....873
AFTER THE FIRST 50 HOURS....873
AFTER THE FIRST 100 HOURS....873
OPERATING THE ENGINE....875
INSPECT MACHINE DAILY BEFORE STARTING....875
BEFORE STARTING ENGINE....876
LEVEL CHECK....877
STARTING THE ENGINE IN ORDINARY TEMPERATURE....878
STARTING IN COLD WEATHER....879
CHECK INSTRUMENTS AFTER STARTING....880
USING BOOSTER BATTERIES....881
STOPPING THE ENGINE....883
DRIVING THE MACHINE....885
DRIVE THE MACHINE CAREFULLY....885
STEERING THE MACHINE USING PEDALS....886
STEERING THE MACHINE USING LEVERS....887
TRAVEL MODE SWITCH....888
TRAVEL ALARM (Optional)....888
OPERATING ON SOFT GROUND....889
RAISE ONE TRACK USING BOOM AND ARM....889
TOWING MACHINE A SHORT DISTANCE....890
OPERATING IN WATER OR MUD....891
PARKING THE MACHINE ON SLOPES....892
PARKING THE MACHINE....892
OPERATING THE MACHINE....893
CONTROL LEVER (ISO PATTERN)....893
CONTROL LEVER (HITACHI PATTERN)....894
PILOT CONTROL SHUT-OFF LEVER....895
ENGINE SPEED CONTROL....898
AUTO-IDLE....899
WORK MODE....900
WORK MODE SELECT....901
POWER BOOST....902
POWER MODE....903
OPERATING BACKHOE....904
GRADING OPERATION....904
PRECAUTION FOR ARM ROLL-IN/ BUCKET ROLLIN....905
AVOID ABUSIVE OPERATION....905
OPERATING TIPS....906
SELECT CORRECT TRACK SHOES....906
OBJECT HANDLING --- IF EQUIPPED....907
OVERNIGHT STORAGE INSTRUCTIONS....909
ASSEMBLING....911
PRECAUTIONS FOR ASSEMBLING....911
PRECAUTIONS FOR SLINGING WORK....913
PRECAUTIONS FOR OPERATING MACHINE....914
INSTALLING COUNTERWEIGHT....915
INSTALLING BOOM CYLINDER....916
INSTALLING BOOM....918
CONNECTING HOSES BETWEEN BOOM CYLINDER....919
INSTALLING BOOM CYLINDER ROD....920
INSTALLING ARM....921
CONNECTING ARM CYLINDER ROD....922
CONNECTING BUCKET CYLINDER HOSES....923
INSTALLING BUCKET....924
FINAL INSPECTION....925
TRANSPORTING BY ROAD....926
TRANSPORTING THE MACHINE BY TRAILER....926
LOADING/UNLOADING ON A TRAILER....926
RETRACTING OR EXTENDING THE SIDE FRAME....930
RETRACTING THE SIDE FRAME....931
EXTENDING THE SIDE FRAME....932
TYPES OF PACKINGS FOR TRANSPORTATION....935
PACKING DIMENSIONS AND WEIGHTS FOR....936
PACKING DIMENSIONS AND WEIGHTS FOR....939
MAINTENANCE....943
CORRECT MAINTENANCE AND INSPECTION....943
CHECK THE HOUR METER REGULARLY....944
USE CORRECT FUELS AND LUBRICANTS....944
PREPARE MACHINE FOR MAINTENANCE....945
HOOD AND ACCESS COVERS....946
PERIODIC REPLACEMENT OF PARTS....947
MAINTENANCE GUIDE....948
A. GREASING....951
B. ENGINE OIL....962
C. TRANSMISSION OIL....966
D. HYDRAULIC SYSTEM....971
E. FUEL SYSTEM....988
F. AIR CLEANER....998
G. COOLING SYSTEM....999
H. AIR CONDITIONER....1004
I. ELECTRICAL SYSTEM....1010
J. MISCELLANEOUS....1017
HYDRAULIC CIRCUIT AND ELECTLICAL CIRCUIT....1047
HYDRAULIC SYSTEM....1047
MAIN CIRCUIT....1048
ELECTLICAL CIRCUIT....1050
ELECTRICAL DIAGRAM....1053
MAINTENANCE UNDER SPECIAL ENVIRONMENTAL CONDITIONS....1054
MAINTENANCE UNDER SPECIAL ENVIRONMENTAL CONDITIONS....1054
STORAGE....1056
STORING THE MACHINE....1056
REMOVING THE MACHINE FROM STORAGE....1057
TROUBLESHOOTING....1058
ENGINE....1058
ELECTRICAL SYSTEM....1062
CONTROL LEVERS....1066
HYDRAULIC SYSTEM....1066
SPECIFICATIONS....1070
SPECIFICATIONS (BACKHOE)....1070
WORKING RANGES (BACKHOE)....1071
SHOE TYPES AND APPLICATIONS....1072
ZAXIS850-3....1072
ZAXIS850LC-3....1072
BUCKET TYPES AND APPLICATIONS (BACKHOE)....1073
ZAXIS850-3....1073
ZAXIS850LC-3....1073
SPECIFICATIONS (BACKHOE)....1074
ZAXIS870H-3, 870LCH-3....1074
WORKING RANGES (BACKHOE)....1075
ZAXIS870H-3, 870LCH-3....1075
SHOE TYPES AND APPLICATIONS....1076
ZAXIS870H-3....1076
ZAXIS870LCH-3....1076
BUCKET TYPES AND APPLICATIONS (BACKHOE)....1077
ZAXIS870H-3....1077
ZAXIS870LCH-3....1077
LIFTING CAPACITIES....1078
SOUND LEVEL RESULTS....1080
VIBRATION LEVEL....1080
OPTIONAL ATTACHMENTS AND DEVICES....1082
HYDRAULIC BREAKER....1082
WORK MODE....1083
BREAKER OPERATION....1084
PRECAUTIONS FOR BREAKER OPERATION....1086
BREAKER MAINTENANCE....1090
REPLACE BREAKER CIRCUIT RETURN OIL FILTER....1092
HYDRAULIC CRUSHER....1093
STOP VALVE OPERATION....1094
THREE-WAY-VALVE OPERATION....1095
FLOW COMBINING VALVE OPERATION....1095
PRECAUTIONS FOR CRUSHER OPERATION....1096
INDEX....1098
KO28200 - Hitachi ZAXIS 800, 850H Assembly Procedure Manual....1102
COVER....1102
Foreword....1103
ZX800/ ZX850H Assembly Chart BACKHOE FRONT....1104
ZX800/ ZX850H Assembly Chart BACKHOE FRONT....1105
ZX800/ ZX850H Assembly Chart LOADER FRONT....1106
ZX800/ ZX850H Assembly Chart LOADER FRONT....1107
CONTENTS....1108
1. Precautions....1109
1-1. Safety precautions for servicemen....1109
1-2. How to use a power wrench....1122
1-3. Work precautions....1125
2. Work Plan and Preparations....1135
2-1. Work Plan (Backhoe Front)....1135
2-2. Work Plan (Loader Front)....1136
2-3. Transportation....1137
3. Parts check....1155
3-1. Check....1155
4. Preparations....1156
4-1. Preparations (Backhoe front)....1156
4-2. Preparations (Loader front)....1157
5. Machines, apparatuses, tools, and materials necessary for assembly....1158
ASSEMBLY OF SUPERSTRUCTURE....1165
6. Assembly of superstructure....1166
6-1. Preparation....1166
6-2. Connecting the side frames to the track frame....1169
6-3. Mounting the counterweight....1185
6-4. Greasing of swing bearing....1189
6-5. Final check of superstructure....1191
6-6. Releasing the air from the main pumps....1194
6-7. Trial operation of superstructure....1195
MOUNTING PROCEDURE FOR FRONT-END ATTACHMENTS BACKHOE FRONT....1198
7. Backhoe front mounting procedure....1199
7-1. Preparation....1199
7-2. Mounting the backhoe front....1201
7-3. Bleeding the cylinders and checking the hydraulic system....1236
7-4. Adjusting the track link tension....1238
7-5. Final trial operation check....1240
7-6. Backhoe lubrication....1241
MOUNTING PROCEDURE FOR FRONT-END ATTACHMENTS LOADER FRONT....1245
8. Loader front mounting procedure....1246
8-1. Preparation....1246
8-2. Mounting the loader front....1248
8-3. Bleeding the cylinders and checking the hydraulic system....1275
8-4. Adjusting the track link tension....1277
8-5. Final trial operation check....1279
8-6. Loader lubrication....1280
9. Extending and retracting the side frames....1284
CHECKS & PERFORMANCE STANDARDS....1294
10. Checks after completing the assembly....1295
11. Checking machine performance....1297
12. Appendix (Lifting Diagrams)....1307
12-1. Assembly Instructions Appendix (Right bracket)....1308
12-2. Assembly Instructions Appendix (Left bracket)....1309
12-3. Superstructure lifting jig....1310
BACK COVER....1311
KO28200 - Hitachi ZAXIS 800, 850H Excavator Assembly Procedure Manual....1312
COVER....1312
Foreword....1313
CONTENTS....1318
1. Precautions....1319
1-1. Safety precautions for servicemen....1319
1-2. How to use a power wrench....1332
1-3. Work precautions....1335
2. Work Plan and Preparations....1345
2-1. Work Plan (Backhoe Front)....1345
2-2. Work Plan (Loader Front)....1346
2-3. Transportation....1347
3. Parts check....1365
3-1. Check....1365
4. Preparations....1366
4-1. Preparations (Backhoe front)....1366
4-2. Preparations (Loader front)....1367
5. Machines, apparatuses, tools, and materials necessary for assembly....1368
6. Assembly of superstructure....1376
6-1. Preparation....1376
6-2. Connecting the side frames to the track frame....1379
6-3. Mounting the counterweight....1395
6-4. Greasing of swing bearing....1399
6-5. Final check of superstructure....1401
6-6. Releasing the air from the main pumps....1404
6-7. Trial operation of superstructure....1405
7. Backhoe front mounting procedure....1409
7-1. Preparation....1409
7-2. Mounting the backhoe front....1411
7-3. Bleeding the cylinders and checking the hydraulic system....1446
7-4. Adjusting the track link tension....1448
7-5. Final trial operation check....1450
7-6. Backhoe lubrication....1451
8. Loader front mounting procedure....1456
8-1. Preparation....1456
8-2. Mounting the loader front....1458
8-3. Bleeding the cylinders and checking the hydraulic system....1485
8-4. Adjusting the track link tension....1487
8-5. Final trial operation check....1489
8-6. Loader lubrication....1490
9. Extending and retracting the side frames....1494
10. Checks after completing the assembly....1505
11. Checking machine performance....1507
12. Appendix (Lifting Diagrams)....1517
12-1. Assembly Instructions Appendix (Right bracket)....1518
12-2. Assembly Instructions Appendix (Left bracket)....1519
12-3. Superstructure lifting jig....1520
KO28900 - Hitachi ZAXIS 800, 850H Excavator Daily & Weekly Maintenance Check Sheets....1521
COVER....1521
CHECK POINTS....1522
DAILY AND WEEKLY CHECK SHEETS FOR THE ZX800/ZX850H....1523
HOW TO USE THE ZX800/ZX850H SHEETS....1524
BACK COVER....1525
T1JBE00 (attach to) - Hitachi ZAXIS 850-3 Electrical Circuit Diagram....1526
T1JBE00 (attach to) - Hitachi ZAXIS 850-3 Hydraulic Circuit Diagram (Backhoe)....1527
TO1JBE00 - Hitachi ZAXIS 850-3, 850LC-3, 870H-3, 870LCH-3 Hydraulic Excavator Technical Manual (Operational Principle)....1528
T03.pdf....0
T03.pdf....0
T03-06-01to16.pdf....0
T03-06-01to16.pdf....0
OUTLINE....1833
PILOT PORT....1834
SHUTTLE VALVE....1838
SHOCKLESS VALVE....1842
PUMP 1 AND PUMP 2 FLOW RATE CONTROL VALVES....1846
BUCKET FLOW RATE CONTROL VALVE CONTROL SPOOL, FLOW COMBINER VALVE CONTROL SPOOL, SWING PARKING BRAKE RELEASE SPOOL, ARM 1 FLOW RATE CONTROL VALVE CONTROL SPOOL....1848
TT1JBE00 - Hitachi ZAXIS 850-3, 850LC-3, 870H-3, 870LCH-3 Hydraulic Excavator Technical Manual (Troubleshooting)....1868
T04.pdf....0
T04.pdf....0
T04-01-01to02.pdf....0
OPERATIONAL PERFORMANCE TESTS....1913
PREPARATION FOR PERFORMANCE TESTS....1914
W1JBE00 - Hitachi ZAXIS 850-3, 850LC-3, 870H-3, 870LCH-3 Hydraulic Excavator Workshop Manual....2456
COVER....2456
INTRODUCTION....2458
SAFETY....2460
SECTION AND GROUP CONTENTS....2496
SECTION 1 GENERAL....2498
Precautions for Disassembling and Assembling....2500
PRECAUTIONS FOR DISASSEMBLING AND ASSEMBLING....2500
MAINTENANCE STANDARD TERMINOLOGY....2506
Tightening Torque....2508
TIGHTENING TORQUE SPECIFICATION....2508
TORQUE CHART....2509
PIPING JOINT....2512
PERIODIC REPLACEMENT OF PARTS....2516
Painting....2518
PAINTING....2518
Bleeding Air....2524
BLEED AIR FROM HYDRAULIC OIL TANK....2524
SECTION 2 UPPERSTRUCTURE....2528
Cab....2530
REMOVE AND INSTALL CAB....2530
DIMENSIONS OF THE CAB GLASS....2537
Counterweight....2550
REMOVE AND INSTALL COUNTERWEIGHT....2550
Main Frame....2554
REMOVE AND INSTALL MAIN FRAME....2554
Pump Device....2560
REMOVE AND INSTALL PUMP DEVICE....2560
DISASSEMBLE PUMP TRANSMISSION....2579
ASSEMBLE PUMP TRANSMISSION....2583
DISASSEMBLE MAIN PUMP....2587
ASSEMBLE MAIN PUMP....2591
DISASSEMBLE MAIN REGULATOR....2597
ASSEMBLE MAIN REGULATOR....2603
DISASSEMBLE FAN PUMP....2609
ASSEMBLE FAN PUMP....2613
DISASSEMBLE FAN REGULATOR....2617
ASSEMBLE FAN REGULATOR....2619
MAINTENANCE STANDARD....2623
STRUCTURE OF PILOT PUMP....2625
STRUCTURE OF SOLENOID VALVE....2627
Control Valve....2628
REMOVE AND INSTALL CONTROL VALVE....2628
DISASSEMBLE CONTROL VALVE (4-SPOOL HOUSING SIDE)....2633
ASSEMBLE CONTROL VALVE (4-SPOOL HOUSING SIDE)....2639
DISASSEMBLE CONTROL VALVE (5-SPOOL HOUSING SIDE)....2645
ASSEMBLE CONTROL VALVE (5-SPOOL HOUSING SIDE)....2649
DISASSEMBLE CONTROL VALVE (4-SPOOL HOUSING UPPER AND LOWER SURFACES)....2655
ASSEMBLE CONTROL VALVE (4-SPOOL HOUSING UPPER AND LOWER SURFACES)....2661
DISASSEMBLE CONTROL VALVE (5-SPOOL HOUSING UPPER AND LOWER SURFACES)....2669
ASSEMBLE CONTROL VALVE (5-SPOOL HOUSING UPPER AND LOWER SURFACES)....2677
DISASSEMBLE CONTROL VALVE (4-SPOOL CONTROL VALVE)....2685
ASSEMBLE CONTROL VALVE (4-SPOOL CONTROL VALVE)....2689
DISASSEMBLE CONTROL VALVE (5-SPOOL CONTROL VALVE)....2691
ASSEMBLE CONTROL VALVE (5-SPOOL CONTROL VALVE)....2695
DISASSEMBLE CONTROL VALVE (HOUSING FRONT AND REAR SURFACES)....2697
ASSEMBLE CONTROL VALVE (HOUSING FRONT AND REAR SURFACES)....2699
DISASSEMBLE HOUSING....2701
ASSEMBLE HOUSING....2703
Swing Device....2706
REMOVE AND INSTALL SWING DEVICE....2706
DISASSEMBLE SWING DEVICE....2709
ASSEMBLE SWING DEVICE....2715
DISASSEMBLE SWING MOTOR....2719
ASSEMBLE SWING MOTOR....2723
STRUCTURE OF SWING PARKING BRAKE VALVE....2727
MAINTENANCE STANDARD....2728
Pilot Valve....2730
REMOVE AND INSTALL PILOT VALVE....2730
DISASSEMBLE RIGHT AND LEFT PILOT VALVES....2747
ASSEMBLE RIGHT AND LEFT PILOT VALVES....2751
DISASSEMBLE TRAVEL PILOT VALVE....2755
ASSEMBLE TRAVEL PILOT VALVE....2759
Pilot Shut-Off Solenoid Valve....2766
REMOVE AND INSTALL PILOT SHUT-OFF SOLENOID VALVE....2766
STRUCTURE OF PILOT SHUT-OFF SOLENOID VALVE....2768
Solenoid Valve....2770
REMOVE AND INSTALL 4-SPOOL SOLENOID VALVE....2770
STRUCTURE OF 4-SPOOL SOLENOID VALVE....2772
DISASSEMBLE AND ASSEMBLE 4-SPOOL SOLENOID VALVE....2773
Signal Control Valve....2776
REMOVE AND INSTALL SIGNAL CONTROL VALVE....2776
STRUCTURE OF SIGNAL CONTROL VALVE....2778
Shockless Valve....2780
REMOVE AND INSTALL SHOCKLESS VALVE....2780
STRUCTURE OF SHOCKLESS VALVE....2782
Fan Motor....2784
REMOVE AND INSTALL FAN MOTOR....2784
STRUCTURE OF FAN MOTOR....2801
Fan Valve....2802
REMOVE AND INSTALL FAN VALVE....2802
STRUCTURE OF FAN VALVE....2807
Engine....2808
REMOVE AND INSTALL ENGINE....2808
SECTION 3 UNDERCARRIAGE....2832
Swing Bearing....2834
REMOVE AND INSTALL SWING BEARING....2834
DISASSEMBLE SWING BEARING....2837
ASSEMBLE SWING BEARING....2839
Travel Device....2842
REMOVE AND INSTALL TRAVEL DEVICE....2842
DISASSEMBLE TRAVEL DEVICE....2845
ASSEMBLE TRAVEL DEVICE....2853
DISASSEMBLE TRAVEL MOTOR....2863
ASSEMBLE TRAVEL MOTOR....2867
DISASSEMBLE BRAKE VALVE....2873
ASSEMBLE BRAKE VALVE....2875
MAINTENANCE STANDARD....2877
Center Joint....2880
REMOVE AND INSTALL CENTER JOINT....2880
DISASSEMBLE CENTER JOINT....2883
ASSEMBLE CENTER JOINT....2885
MAINTENANCE STANDARD....2890
Track Adjuster....2892
REMOVE AND INSTALL TRACK ADJUSTER....2892
DISASSEMBLE TRACK ADJUSTER....2893
ASSEMBLE TRACK ADJUSTER....2899
Front Idler....2906
REMOVE AND INSTALL FRONT IDLER....2906
DISASSEMBLE FRONT IDLER....2907
ASSEMBLE FRONT IDLER....2911
MAINTENANCE STANDARD....2915
Upper and Lower Roller....2916
REMOVE AND INSTALL UPPER ROLLER....2916
REMOVE AND INSTALL LOWER ROLLER....2919
DISASSEMBLE UPPER ROLLER....2923
ASSEMBLE UPPER ROLLER....2925
DISASSEMBLE LOWER ROLLER....2927
ASSEMBLE LOWER ROLLER....2929
MAINTENANCE STANDARD....2931
Track....2934
REMOVE AND INSTALL TRACK....2934
ASSEMBLE SPECIAL TOOL WHEN REMOVING AND INSTALLING MASTER PIN....2937
MAINTENANCE STANDARD....2946
SECTION 4 FRONT ATTACHMENT....2952
Front Attachment....2954
HYDRAULIC CIRCUIT PRESSURE RELEASE PROCEDURE....2954
REMOVE AND INSTALL BUCKET....2955
REMOVE AND INSTALL ARM....2959
REMOVE AND INSTALL BOOM....2965
REMOVE AND INSTALL BUSHING....2973
MAINTENANCE STANDARD....2975
STANDARD DIMENSIONS FOR ARM AND BUCKET CONNECTION....2978
STANDARD DIMENSIONS FOR ARM AND BOOM CONNECTION....2979
Cylinder....2980
REMOVE AND INSTALL CYLINDER....2980
MAIN POINTS TO RELEASE PRESSURE....2993
DISASSEMBLE CYLINDER....2995
ASSEMBLE CYLINDER....3001
MAINTENANCE STANDARD....3005
SERVICE MANUAL REVISION REQUEST FORM....3008
