Hitachi ZAXIS 70 - Hydraulic Circuit Zaxis80 Sb, 80 Sblc

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HYDRAULIC CIRCUIT AND ELECTRICAL CIRCUIT

8-2

HYDRAULIC CIRCUIT ZAXIS80SB, 80SBLC

M1CC-07-053

Main Page

Table of Contents7
Safety11
Recognize Safety Information11
Understand Signal Words11
Follow Safety Instructions12
Prepare for Emergencies12
Wear Protective Clothing13
Protect against Noise13
Inspect Machine13
General Precautions for Cab14
Use Handholds and Steps15
Adjust the Operator's Seat15
Fasten Your Seat Belt16
Move and Operate Machine Safely16
Operate Only from Operator's Seat17
Jump Starting17
Keep Riders off Machine17
Investigate Job Site Beforehand18
Protect against Falling Stones and Debris18
Provide Signals for Jobs Involving Multiple Numbers of Machines19
Confirm Direction of Machine to be Driven19
Drive Machine Safely20
Avoid Injury from Rollaway Accidents21
Avoid Injury from Back-Over and Swing Accidents22
Keep Person Clear from Working Area23
Never Position Bucket over Anyone23
Avoid Undercutting23
Avoid Tipping24
Never Undercut a High Bank24
Dig with Caution25
Operate with Caution25
Avoid Power Lines25
Object Handling26
Protect against Flying Debris26
Park Machine Safely27
Handle Fluids Safely27
Safety Transporting28
Practice Safe Maintenance29
Warn Others of Service Work30
Support Machine Properly30
Stay Clear of Moving Parts30
Prevent Parts from Flying31
Store Attachments Safely31
Prevent Burns32
Replace Rubber Hoses Periodically32
Avoid High-Pressure Fluids33
Prevent Fires34
Evacuating in Case of Fire35
Beware of Exhaust Fumes35
Precautions for Welding and Grinding36
Avoid Heating Near Pressurized Fluid Lines37
Avoid Applying Heat to Lines Containing Flammable Fluids37
Remove Paint before Welding or Heating37
Prevent Battery Explosions38
Service Air Conditioning System Safely38
Handle Chemical Products Safely39
Dispose of Waste Properly39
Safety Signs40
Components Name47
Operator's Station48
Cab Features48
Monitor Panel49
Coolant Temperature Gauge50
Fuel Gauge50
Auto-Idle Indicator50
Fuel Level Indicator50
Air Filter Restriction Indicator50
Overheat Indicator51
Engine Oil Pressure Indicator51
Alternator Indicator51
Preheat Indicator51
Hydraulic Oil Filter Restriction Indicator (ZAXIS80LCK)51
Liquid Crystal Display (LCD), Display Selection Switch, Set Switch52
Hour Meter52
Trip Meter (Trip Meter 1 and Trip Meter 2)53
Trip Meter Function54
Switch Panel56
Engine Control Dial56
Auto-Idle Switch57
Power Mode Switch58
Travel Mode Switch58
Work Light Switch59
Wiper/Washer Switch60
Switch Panel (Optional)62
Key Switch63
Horn Switch63
Cigar Lighter64
12-V Power Source (Optional)65
Cab Light66
Installing Fire Extinguisher (Optional)66
Pilot Control Shut-Off Lever67
Engine Stop Knob67
Fuse Box68
Additional Fuse Box (Optional)68
Auto Air Conditioner (Optional)69
Cab Heater Operation74
Cooling Operation75
Defroster Operation75
Tips for Optimal Air Conditioner Usage77
Cab Heater (Optional)78
Cab Heater Operation79
Defroster Operation80
AM/FM Radio Operation81
Digital Clock Setting Procedure82
Cab Door Release Lever83
Opening Upper Front Window83
Closing Upper Front Window84
Removing and Storing Lower Front Window85
Opening Side Windows85
Opening/Closing Overhead Window86
Emergency Exit87
Sunvisor (Optional)88
Adjusting the Seat89
Adjusting the Air-Suspension Seat (Optional)93
Adjusting Console Height95
Seat Belt96
Break-In97
Observe Engine Operation Closely97
Every 8 Hours or Daily97
After the First 50 Hours97
After the First 100 Hours97
Operating the Engine99
Inspect Machine Daily before Starting99
Before Starting Engine100
Starting the Engine in Ordinary Temperature101
Starting the Engine in Cold Weather102
Check Instruments after Starting103
Using Booster Batteries104
Stopping the Engine106
Driving the Machine107
Drive the Machine Carefully107
Steering the Machine Using Pedals108
Steering the Machine Using Levers109
Travel Mode Switch110
Travel Alarm (Optional)110
Traveling111
Operating on Soft Ground112
Raise One Track Using Boom and Arm112
Towing Machine a Short Distance113
Operating in Water or Mud114
Precautions for Traveling on Slopes115
Parking the Machine on Slopes116
Parking the Machine116
Operating the Machine117
Horn117
Control Lever (ISO Pattern)118
Boom Swing Front118
Attachment Pedal (Breaker)119
Attachment Pedal (Hydraulic Crusher)120
Pilot Control Shut-Off Lever121
Engine Speed Control123
Auto-Idle124
Power Mode125
Precautions for Operation Usinga Bucket (Zaxis80Lck)126
Precautions for Operations127
Operate the Machine Safely128
Operating Backhoe129
Grading Operation129
Face Shovel Operation130
When Installing the Front Attachment Larger than Standard Bucket130
Avoid Abusive Operation130
Operating Tips131
Select Correct Track Shoes131
Hydraulic Breaker and Hydraulic Crusher132
Pipings for Breaker and Crusher133
Secondary Relief Pressure Adjustment134
Precautions for Breaker Operation135
Breaker Maintenance138
Precautions for Crusher Operation139
Attachment141
Attachment Connection Parts143
Object Handling144
Emergency Boom Lowering Procedure146
Shackle Hole Usage148
Overnight Storage Instructions148
Transporting149
Transporting by Road149
Loading/Unloading on a Trailer149
Machine Lifting Procedure153
Maintenance155
Correct Maintenance and Inspection Procedures155
Check the Hour Meter Regularly156
Use Correct Fuels and Lubricants156
Layout157
Maintenance Guide Table158
Prepare Machine for Maintenance160
Hood and Access Covers161
Periodic Replacement of Parts163
Use Electrical Outlet164
Maintenance Guide165
Greasing165
Front Joint Pins165
Swing Bearing165
Swing Internal Gear165
Engine174
Engine Oil Level174
Change Engine Oil174
Replace Engine Oil Filter174
Transmission176
Travel Reduction Gear176
Hydraulic System178
Inspection and Maintenance of Hydraulic Equipment178
Replacement of Hydraulic Oil and Filter180
Check Hydraulic Oil Level181
Drain Hydraulic Tank Sump182
Change Hydraulic Oil183
Suction Filter Cleaning183
Replace Hydraulic Tank Oil Filter186
Replace Pilot Oil Filter188
Replace Swing Drain Filter Element189
Replace Air Breather Element190
Check Hoses and Lines191
Service Recommendations for Hydraulic Fittings194
Fuel System196
Drain Fuel Tank Sump198
Check Water Separator199
Replace Fuel Filter200
Clean Feed Pump Strainer202
Check Fuel Hoses203
Air Cleaner204
Clean the Air Cleaner Element204
Cooling System206
Check and Adjust Fan Belt Tension207
Change Coolant208
Clean Radiator Interior208
Clean Radiator and Oil Cooler Core209
Clean Oil Cooler Front Screen209
Clean Air Conditioner Condenser209
Electrical System210
Batteries210
Replace Batteries214
Replacing Fuses215
Additional Fuse Box (Optional)216
Miscellaneous217
Check Bucket Teeth217
Change Bucket219
Convert Bucket Connection into Face Shovel220
Adjust the Bucket Linkage221
Remove the Travel Levers222
Check and Replace Seat Belt222
Check Windshield Washer Fluid Level222
Check Track Sag223
Adjust Track Sag223
Loosen the Track224
Tighten the Track224
Clean and Replace Air Conditioner Filter225
Replace Filter225
Check the Air Conditioner227
Clean Cab Floor229
Check Injection Nozzle230
Retighten Cylinder Head Bolt230
Inspect and Adjust Valve Clearance230
Check Fuel Injection Timing230
Check Starter and Alternator230
Change Water Pump Grease230
Measure Engine Compression Pressure230
Check Tightening Torque of Bolts and Nuts231
Hydraulic Circuit and Electrical Circuit239
Hydraulic Circuit Zaxis70, 70Lc, 85Us239
Hydraulic Circuit Zaxis80Sb, 80Sblc240
Electrical Circuit ZAXIS70/70LC/80SB/ 80SBLC/85US Electrical Diagram242
Zaxis70/70Lc/80Sb/80Sblc/85Us Electrical Diagram243
Maintenance under Special Environmental Conditions245
Storing the Machine247
Removing the Machine from Storage248
Installing Vandal-Proof Covers249
Help Prevent Crime250
Record Identification Numbers250
Keep Proof of Ownership250
Park Indoors out of Sight250
When Parking Outdoors251
Reduce Vandalism251
Report Thefts Immediately251
Troubleshooting253
Engine253
Electrical System258
Mode Selection260
Control Levers261
Hydraulic System261
Specifications265
Specifications (ZAXIS70, 70LC, 85US)265
Working Ranges (ZAXIS70, 70LC)266
Working Ranges (ZAXIS85US)267
Shoe Types and Applications (ZAXIS70, 70LC)268
Shoe Types and Applications (ZAXIS85US)269
Specifications (ZAXIS80SB, 80SBLC)269
Shoe Types and Applications272
Sound Level Results (2000/14/EC)273
Optional Attachments and Devices275
Blade Lever275
Precautions for Blade Operation275
Avoid Hitting Blade with Front-End Attachment276
Avoid Hitting Blade with Bucket276
Avoid Striking the Blade into a Rock276
Specifications (ZAXIS70, 70LC, 85US with Blade)278
Shoe Types and Applications (ZAXIS70, 70LC with Blade)279
Shoe Types and Applications280
Zaxis85Us(With Blade)280
Specifications (ZAXIS80SB, 80SBLC with Blade)281
Shoe Types and Applications282
Offset Arm Front283
Precautions for Operating with the Offset Function285
Maintenance286
Specifications288
Working Ranges (Offset)290
Shoe Types and Applications (with Offset Arm Front)291
Electronic Key Lock Operation Manual293
Registration/Registration Cancellation of Ordinary Operation Key296
Additional Registration Procedure297
Registration Cancellation Procedure298
Lifting Capacities299
Index311

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