Hitachi ZAXIS ZX70, ZX70LC, ZX80SB, ZX80SBLC, ZX85US Excavator Operator's Manual EM1CD-EN4-2

Serial No.
ZAXIS70, 70LC 060001 and up
ZAXIS80SB, 80SBLC 060001 and up
ZAXIS85US 040001 and up

MACHINE NUMBERS
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
(Optional) ................................................ 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

Digital Clock Setting Procedure.........................1-36
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 Operations................................5-10
Operate the Machine Safely ..............................5-11

Operating Backhoe ........................................... 5-12
Grading Operation............................................. 5-12
Face Shovel Operation ..................................... 5-13
When Installing the Front Attachment
Larger than Standard Bucket ...................... 5-13
Avoid Abusive Operation................................... 5-13
Operating Tips................................................... 5-14
Select Correct Track Shoes .............................. 5-14
Hydraulic Breaker and Hydraulic Crusher......... 5-15
Pipings for Breaker and Crusher....................... 5-16
Secondary Relief Pressure Adjustment ............ 5-17
Precautions for Breaker Operation ................... 5-18
Breaker Maintenance ........................................ 5-21
Precautions for Crusher Operation ................... 5-22
Attachment ........................................................ 5-24
Attachment Connection Parts ........................... 5-26
Object Handling --- If Equipped......................... 5-27
Emergency Boom Lowering Procedure ............ 5-29
Shackle Hole Usage.......................................... 5-31
Overnight Storage Instructions.......................... 5-31
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
Change Hydraulic Oil .................................. 7-29
Suction Filter Cleaning................................ 7-29