CONTENTS
Work Light Switch ........................................................................1-49
Wiper/Washer Switch ..................................................................1-50
Switch Panel (Optional) ..............................................................1-52
Key Switch .......................................................................................1-54
Horn Switch ....................................................................................1-54
Cigar Lighter ...................................................................................1-55
Cab Light .........................................................................................1-56
Installing Fire Extinguisher (Optional) ..................................1-56
Pilot Control Shut-off Lever ......................................................1-57
Engine Stop Switch ......................................................................1-57
Fuse Box ...........................................................................................1-58
Auto Air Conditioner ...................................................................1-59
Cab Heater Operation .................................................................1-62
Cooling Operation .......................................................................1-63
Defroster Operation ....................................................................1-63
Tips for Optimal Air Conditioner Usage ...............................1-65
Cab Heater (Optional) .................................................................1-66
Cab Heater Operation .................................................................1-67
Defroster Operation ....................................................................1-68
AM/FM Radio Operation ...........................................................1-69
Digital Clock Setting Procedure ..............................................1-70
Cab Door Release Lever .............................................................1-71
Opening Upper Front Window ................................................1-71
Closing Upper Front Window ...................................................1-72
Removing and Storing Lower Front Window .....................1-73
Opening Side Windows ..............................................................1-73
Opening/Closing Overhead Window ....................................1-74
Emergency Exit .............................................................................1-75
Adjusting the Seat .......................................................................1-76
Adjusting the Seat (Optional) ..................................................1-78
Adjusting Console Height .........................................................1-80
Seat Belt ...........................................................................................1-81
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 in Cold Weather.............................................................. 3-5
Check Instruments After Starting ............................................. 3-6
Using Booster Batteries ................................................................ 3-7
Stopping the Engine ..................................................................... 3-9
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
Operating on Soft Ground .......................................................... 4-5
Raise One Track Using Boom and Arm ................................... 4-5
Towing Machine a Short Distance ............................................ 4-6
Operating in Water or Mud ......................................................... 4-7
Parking the Machine on Slopes ................................................. 4-8
Parking the Machine ..................................................................... 4-8
OPERATING THE MACHINE
Control Lever (ISO Pattern) ......................................................... 5-1
Control Lever (Hitachi Pattern) .................................................. 5-2
Control Lever (4 Way Multi Valve) (Optional) ........................ 5-3
Control Lever (2 Way Multi Valve) (Optional) ........................ 5-4
Attachment Pedal (Hydraulic Breaker) (K Model) ............... 5-5
Attachment Pedal (Hydraulic Crusher) (K Model) ............... 5-6
Pilot Control Shut-off Lever ........................................................ 5-7
Engine Speed Control ................................................................... 5-9
Auto-idle .........................................................................................5-10
Work Mode .....................................................................................5-11
Work Mode Select ........................................................................5-12
Power Mode ..................................................................................5-13
Precautions for Excavation (K Model) ...................................5-14
Operating Backhoe ......................................................................5-15
Grading Operation .......................................................................5-15
Face Shovel Operation................................................................5-16
Avoid Abusive Operation ..........................................................5-16
Operating Tips ...............................................................................5-17
Select Correct Track Shoes ........................................................5-17
Hydraulic Breaker and Hydraulic Crusher ............................5-18
Pipings for Breaker and Crusher ..............................................5-19
Secondary Relief Pressure Adjustment ................................5-21
Precautions for Breaker Operation .........................................5-23
Breaker Maintenance ..................................................................5-26
Precautions for Crusher Operation ........................................5-27
Attachment .....................................................................................5-29
Attachment Connection Parts .................................................5-33
Precaution for Arm Roll-in/Bucket Roll-in
Combined Operation --- If Headguard-integrated
Cab or Rainguard is Equipped ..........................................5-34
When Installing an Attachment Longer
Than Standard Bucket ..........................................................5-34
Shackle Hole Usage .....................................................................5-35
Overnight Storage Instructions ...............................................5-35
Bucket Link Securing Method (L Model) ..............................5-36
Emergency Boom Lowering Procedure
(Without Hose-rupture Safety Valve) .............................5-37
Object Handling --- If Equipped ..............................................5-39
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
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