Description
Hitachi ZX70, ZX70LC, ZX80SB, ZX80SBLC, ZX85US Operator’s Manual (EM1CD-EN3-1, EM1CD-EN3-2)
Hitachi ZX70, ZX70LC, ZX80SB, ZX80SBLC, ZX85US Excavator Index:
SAFETY
Recognize Safety Information ………………………. S-1
Understand Signal Words…………………………….. S-1
Follow Safety Instructions…………………………….. S-2
Prepare for Emergencies……………………………… S-2
Wear Protective Clothing……………………………… S-3
Protect Against Noise ………………………………….. S-3
Inspect Machine………………………………………….. S-3
General Precautions for Cab ………………………… S-4
Use Handholds and Steps……………………………. S-5
Adjust the Operator’s Seat……………………………. S-5
Fasten Your Seat Belt………………………………….. S-6
Move and Operate Machine Safely ……………….. S-6
Operate Only from Operator’s Seat……………….. S-7
Jump Starting……………………………………………… S-7
Keep Riders Off Machine……………………………… S-7
Investigate Job Site Beforehand……………………. S-8
Protect Against Falling Stones and Debris……… S-8
Provide Signals for Jobs Involving Multiple
Numbers of Machines…………………………….. S-9
Confirm Direction of Machine to be Driven……… S-9
Drive Machine Safely…………………………………. S-10
Avoid Injury from Rollaway Accidents ………….. S-11
Avoid Injury from Back-Over
and Swing Accidents ……………………………. S-12
Keep Person Clear from Working Area ………… S-13
Never Position Bucket Over Anyone ……………. S-13
Avoid Undercutting ……………………………………. S-13
Avoid Tipping ……………………………………………. S-14
Never Undercut a High Bank………………………. S-14
Dig with Caution………………………………………… S-15
Operate with Caution …………………………………. S-15
Avoid Power Lines …………………………………….. S-15
Object Handling ………………………………………… S-16
Protect Against Flying Debris ……………………… S-16
Park Machine Safely………………………………….. S-17
Handle Fluids Safely — Avoid Fires …………….. S-17
Safety Transporting …………………………………… S-18
Practice Safe Maintenance…………………………. S-19
Warn Others of Service Work……………………… S-20
Support Machine Properly ………………………….. S-20
Stay Clear of Moving Parts…………………………. S-20
Prevent Parts from Flying …………………………. S-21
Store Attachments Safely …………………………… S-21
Prevent Burns …………………………………………… S-22
Replace Rubber Hoses Periodically…………….. S-22
Avoid High-Pressure Fluids ………………………… S-23
Prevent Fires ……………………………………………. S-24
Evacuating in Case of Fire………………………….. S-25
Beware of Exhaust Fumes………………………….. S-25
Precautions for Welding and Grinding………….. S-26
Avoid Heating Near Pressurized Fluid Lines…. S-27
Avoid Applying Heat to Lines Containing
Flammable Fluids ………………………………… S-27
Remove Paint Before Welding or Heating ……..S-27
Prevent Battery Explosions ………………………….S-28
Service Air Conditioning System Safely…………S-28
Handle Chemical Products Safely ………………..S-29
Dispose of Waste Properly…………………………..S-29
SAFETY SIGNS ……………………………. S-30
COMPONENTS NAME ……………………. 1-1
OPERATOR’S STATION
Cab Features………………………………………………. 1-2
Monitor Panel ……………………………………………… 1-3
Coolant Temperature Gauge …………………. 1-4
Fuel Gauge ………………………………………….. 1-4
Auto-Idle Indicator ………………………………….. 1-4
Fuel Level Indicator………………………………… 1-4
Air Filter Restriction Indicator…………………… 1-4
Overheat Indicator………………………………….. 1-5
Engine Oil Pressure Indicator ………………….. 1-5
Alternator Indicator…………………………………. 1-5
Preheat Indicator……………………………………. 1-5
Hydraulic Oil Filter Restriction Indicator
(ZAXIS80LCK) …………………………………. 1-5
Liquid Crystal Display (LCD), Display
Selection Switch, Set Switch ……………… 1-6
Hour Meter ……………………………………………. 1-6
Trip Meter (Trip Meter 1 and Trip Meter 2) … 1-7
Trip Meter Function ………………………………… 1-8
Switch Panel ……………………………………………. 1-10
Engine Control Dial ………………………………. 1-10
Auto-Idle Switch …………………………………… 1-11
Power Mode Switch ……………………………… 1-12
Travel Mode Switch………………………………. 1-12
Work Light Switch ………………………………… 1-13
Wiper/Washer Switch……………………………. 1-14
Switch Panel (Optional)………………………………. 1-16
Key Switch………………………………………………… 1-17
Horn Switch………………………………………………. 1-17
Cigar Lighter……………………………………………… 1-18
12-V Power Source (Optional) …………………….. 1-19
Cab Light ………………………………………………….. 1-20
Installing Fire Extinguisher (Optional) …………… 1-20
Pilot Control Shut-Off Lever ………………………… 1-21
Engine Stop Knob ……………………………………… 1-21
Fuse Box ………………………………………………….. 1-22
Additional Fuse Box (Optional) ……………………. 1-22
Auto Air Conditioner (Optional) ……………………. 1-23
Cab Heater Operation ………………………………… 1-28
Cooling Operation ……………………………………… 1-29
Defroster Operation……………………………………. 1-29
Tips for Optimal Air Conditioner Usage ………… 1-31
Cab Heater (Optional) ………………………………… 1-32
Cab Heater Operation ………………………………… 1-33
Defroster Operation……………………………………. 1-34
AM/FM Radio Operation …………………………….. 1-35
Cab Door Release Lever ……………………………..1-37
Opening Upper Front Window ………………………1-37
Closing Upper Front Window………………………..1-38
Removing and Storing Lower Front Window…..1-39
Opening Side Windows ……………………………….1-39
Opening/Closing Overhead Window ……………..1-40
Emergency Exit…………………………………………..1-41
Sunvisor (Optional) ……………………………………..1-42
Adjusting the Seat……………………………………….1-43
Adjusting the Air-Suspension Seat (Optional) …1-47
Adjusting Console Height …………………………….1-49
Seat Belt ……………………………………………………1-50
BREAK-IN
Observe Engine Operation Closely …………………2-1
Every 8 Hours or Daily…………………………………..2-1
After the First 50 Hours………………………………….2-1
After the First 100 Hours………………………………..2-1
OPERATING THE ENGINE
Inspect Machine Daily Before Starting …………….3-1
Before Starting Engine…………………………………..3-2
Starting the Engine in Ordinary Temperature……3-3
Starting the Engine in Cold Weather ……………….3-4
Check Instruments After Starting…………………….3-5
Using Booster Batteries …………………………………3-6
Stopping the Engine ……………………………………..3-8
DRIVING THE MACHINE
Drive the Machine Carefully …………………………..4-1
Steering the Machine Using Pedals ………………..4-2
Steering the Machine Using Levers…………………4-3
Travel Mode Switch ………………………………………4-4
Travel Alarm (Optional)………………………………….4-4
Traveling ……………………………………………………..4-5
Operating on Soft Ground………………………………4-6
Raise One Track Using Boom and Arm …………..4-6
Towing Machine a Short Distance…………………..4-7
Operating in Water or Mud …………………………….4-8
Precautions for Traveling on Slopes………………..4-9
Parking the Machine on Slopes…………………….4-10
Parking the Machine ……………………………………4-10
OPERATING THE MACHINE
Horn ………………………………………………………..5-1
Control Lever (ISO Pattern) ………………………….5-2
Boom Swing Front ………………………………………..5-2
Attachment Pedal (Breaker) …………………………..5-3
Attachment Pedal (Hydraulic Crusher)…………….5-4
Pilot Control Shut-Off Lever……………………………5-5
Engine Speed Control……………………………………5-7
Auto-Idle………………………………………………………5-8
Power Mode…………………………………………………5-9
Precautions for Operation Using a Bucket
(ZAXIS80LCK)………………………………………5-10
Precautions for Operations …………………………. 5-11
Operate the Machine Safely………………………… 5-12
Operating Backhoe ……………………………………. 5-13
Grading Operation……………………………………… 5-13
Face Shovel Operation ………………………………. 5-14
When Installing the Front Attachment
Larger than Standard Bucket …………………. 5-14
Avoid Abusive Operation…………………………….. 5-14
Operating Tips…………………………………………… 5-15
Select Correct Track Shoes ………………………… 5-15
Hydraulic Breaker and Hydraulic Crusher……… 5-16
Pipings for Breaker and Crusher………………….. 5-17
Secondary Relief Pressure Adjustment ………… 5-18
Precautions for Breaker Operation ………………. 5-19
Breaker Maintenance …………………………………. 5-22
Precautions for Crusher Operation ………………. 5-23
Attachment ……………………………………………….. 5-25
Attachment Connection Parts ……………………… 5-27
Object Handling — If Equipped……………………. 5-28
Emergency Boom Lowering Procedure ………… 5-30
Shackle Hole Usage…………………………………… 5-32
Overnight Storage Instructions…………………….. 5-32
TRANSPORTING
Transporting by Road…………………………………… 6-1
Loading/Unloading on a Trailer……………………… 6-1
Machine Lifting Procedure ……………………………. 6-5
MAINTENANCE
Correct Maintenance
and Inspection Procedures ……………………… 7-1
Check the Hour Meter Regularly……………………. 7-2
Use Correct Fuels and Lubricants …………………. 7-2
Layout ………………………………………………………. 7-3
Maintenance Guide Table …………………………….. 7-4
Prepare Machine for Maintenance…………………. 7-6
Hood and Access Covers……………………………… 7-7
Periodic Replacement of Parts………………………. 7-9
Use Electrical Outlet…………………………………… 7-10
Maintenance Guide ……………………………………. 7-11
A. Greasing ……………………………………………. 7-16
Front Joint Pins ……………………………………. 7-16
Swing Bearing ……………………………………… 7-18
Swing Internal Gear ……………………………… 7-19
B. Engine ………………………………………………… 7-20
Engine Oil Level …………………………………… 7-20
Change Engine Oil ……………………………….. 7-20
Replace Engine Oil Filter ………………………. 7-20
C. Transmission ……………………………………… 7-22
Travel Reduction Gear………………………….. 7-22
D. Hydraulic System …………………………………. 7-24
Inspection and Maintenance
of Hydraulic Equipment……………………. 7-24
Replacement of Hydraulic Oil and Filter ….. 7-26
Check Hydraulic Oil Level……………………… 7-27
Drain Hydraulic Tank Sump…………………… 7-28
CONTENTS
Change Hydraulic Oil……………………………..7-29
Suction Filter Cleaning …………………………..7-29
Replace Hydraulic Tank Oil Filter…………….7-32
Replace Pilot Oil Filter ……………………………7-34
Replace Swing Drain Filter Element…………7-35
Replace Air Breather Element…………………7-36
Check Hoses and Lines………………………….7-37
Service Recommendations for
Hydraulic Fittings……………………………..7-40
E. Fuel System………………………………………….7-42
Drain Fuel Tank Sump……………………………7-44
Check Water Separator ………………………….7-45
Replace Fuel Filter ………………………………..7-46
Clean Feed Pump Strainer ……………………..7-48
Check Fuel Hoses …………………………………7-49
F. Air Cleaner……………………………………………7-50
Clean the Air Cleaner Element………………..7-50
G. Cooling System……………………………………..7-52
Check Coolant Level ……………………………..7-53
Check and Adjust Fan Belt Tension …………7-53
Change Coolant…………………………………….7-54
Clean Radiator Interior …………………………..7-54
Clean Radiator and Oil Cooler Core…………7-55
Clean Oil Cooler Front Screen ………………..7-55
Clean Air Conditioner Condenser…………….7-55
H. Electrical System…………………………………..7-56
Batteries……………………………………………….7-56
Replace Batteries ………………………………….7-60
Replacing Fuses……………………………………7-61
Additional Fuse Box (Optional)………………..7-62
I. Miscellaneous……………………………………….7-63
Check Bucket Teeth ………………………………7-63
Change Bucket ……………………………………..7-65
Convert Bucket Connection Into
Face Shovel…………………………………….7-66
Adjust the Bucket Linkage………………………7-67
Remove the Travel Levers ……………………..7-68
Check and Replace Seat Belt ………………..7-68
Check Windshield Washer Fluid Level……..7-68
Check Track Sag …………………………………..7-69
Adjust Track Sag …………………………………..7-69
Loosen the Track…………………………………..7-70
Tighten the Track…………………………………..7-70
Clean and Replace Air Conditioner Filter ….7-71
Replace Filter………………………………………..7-71
Check the Air Conditioner……………………….7-73
Clean Cab Floor ……………………………………7-75
Check Injection Nozzle…………………………..7-76
Retighten Cylinder Head Bolt ………………….7-76
Inspect and Adjust Valve Clearance ………..7-76
Check Fuel Injection Timing ……………………7-76
Check Starter and Alternator…………………..7-76
Change Water Pump Grease ………………….7-76
Measure Engine Compression Pressure ….7-76
Check Tightening Torque of Bolts
and Nuts …………………………………………7-77
HYDRAULIC CIRCUIT AND
ELECTRICAL CIRCUIT
HYDRAULIC CIRCUIT ZAXIS70, 70LC, 85US… 8-1
HYDRAULIC CIRCUIT ZAXIS80SB, 80SBLC…. 8-2
Electrical Circuit ZAXIS70/70LC/80SB/
80SBLC/85US Electrical Diagram ……………. 8-4
ZAXIS70/70LC/80SB/80SBLC/
85US Electrical Diagram…………………………. 8-5
MAINTENANCE UNDER SPECIAL
ENVIRONMENTAL CONDITIONS
Maintenance Under Special
Environmental Conditions ……………………….. 9-1
STORAGE
Storing the Machine …………………………………… 10-1
Removing the Machine from Storage …………… 10-2
Installing Vandal-Proof Covers…………………….. 10-3
Help Prevent Crime……………………………………. 10-4
Record Identification Numbers…………………….. 10-4
Keep Proof of Ownership ……………………………. 10-4
Park Indoors Out Of Sight …………………………… 10-4
When Parking Outdoors……………………………… 10-5
Reduce Vandalism …………………………………….. 10-5
Report Thefts Immediately ………………………….. 10-5
TROUBLESHOOTING
Engine …………………………………………………….. 11-1
Electrical System……………………………………….. 11-6
Mode Selection………………………………………….. 11-8
Control Levers …………………………………………… 11-9
Hydraulic System ………………………………………. 11-9
SPECIFICATIONS
Specifications (ZAXIS70, 70LC, 85US) ……….. 12-1
Working Ranges (ZAXIS70, 70LC) ………………. 12-2
Working Ranges (ZAXIS85US)……………………. 12-3
Shoe Types and Applications
(ZAXIS70, 70LC)………………………………….. 12-4
Shoe Types and Applications (ZAXIS85US)….. 12-5
Specifications (ZAXIS80SB, 80SBLC) ………… 12-6
Working Ranges (ZAXIS80SB, 80SBLC) ……… 12-7
Shoe Types and Applications
(ZAXIS80SB, 80SBLC) …………………………. 12-8
Sound Level Results (2000/14/EC)………………. 12-9
OPTIONAL ATTACHMENTS AND
DEVICES
Blade Lever ………………………………………………. 13-1
Precautions for Blade Operation………………….. 13-1
Avoid Hitting Blade with Front-End Attachment 13-2
Avoid Hitting Blade with Bucket …………………… 13-2
Avoid Striking the Blade into a Rock…………….. 13-2
Specifications
(ZAXIS70, 70LC, 85US with Blade) ………… 13-4
Shoe Types and Applications
(ZAXIS70, 70LC with Blade)……………………13-5
Shoe Types and Applications
(ZAXIS85US with Blade) ………………………..13-6
Specifications
(ZAXIS80SB, 80SBLC with Blade) …………13-7
Shoe Types and Applications
(ZAXIS85US with Blade) ………………………..13-8
Offset Arm Front …………………………………………13-9
Precautions for Operating with the
Offset Function ……………………………………13-11
Maintenance …………………………………………….13-12
Specifications……………………………………………13-14
Working Ranges (Offset) ……………………………13-16
Shoe Types and Applications
(with Offset Arm Front) …………………………13-17
Electronic Key Lock Operation Manual ………..13-19
Registration/Registration Cancellation of
Ordinary Operation Key………………………..13-22
Additional Registration Procedure……………….13-23
Registration Cancellation Procedure……………13-24
Lifting Capacities ………………………………………13-25
INDEX……………………………………………………..14-1
