CONTENTS 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 Additional 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 (Optional) ...........................1-71 Closing Upper Front Window (Optional) .............................1-72 Removing and Storing Lower Front Window (Optional) ..1-73 Opening Side Windows ..............................................................1-73 Opening/Closing Overhead Window (Optional) ..............1-74 Emergency Exit .............................................................................1-75 Emergency Exit (Optional) ........................................................1-76 Adjusting the Mechanical Suspension Seat .......................1-77 Seat With a Built-in Heater ........................................................1-78 Adjusting the Air-suspension Seat (Optional) ...................1-79 Seat With a Built-in Heater ........................................................1-80 Adjusting the Fixed Seat (Optional) .......................................1-81 Adjusting Console Height .........................................................1-83 Seat Belt ...........................................................................................1-84 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) (Optional) ...........................
5-2 Attchement Pedal (Hydraulic Breaker) (Optional) .............. 5-3 Attchement Pedal (Accelerator Type) ..................................... 5-4 Attchement Pedal (Common Use Type) in the Unlock Position ............................................................ 5-5 Attchement Pedal (Hydraulic Crusher) ................................... 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 Boost ...................................................................................5-13 Power Mode ..................................................................................5-14 Operating Backhoe ......................................................................5-15 Grading Operation .......................................................................5-15 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 ................................5-20 Precautions for Breaker Operation .........................................5-21 Breaker Maintenance ..................................................................5-24 Precautions for Crusher Operation ........................................5-26 Attachment .....................................................................................5-28 Attachment Connection Parts .................................................5-32 Precaution for Arm Roll-in/Bucket Roll-in Combined Operation ..........................................................5-33 When Installing an Attachment Longer Than Standard Bucket ..........................................................5-33 Shackle Hole Usage .....................................................................5-34 Overnight Storage Instructions ...............................................5-34 Emergency Boom Lowering Procedure ..............................5-35 Object Handling ..........................................................................5-36 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 ............................................. 3-7 Using Booster Batteries ................................................................ 3-8 Stopping the Engine ...................................................................3-10 TRANSPORTING Transporting By Road ................................................................... 6-1 Loading/Unloading on a Trailer ................................................ 6-1 Machine Lifting Procedure .......................................................... 6-5 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 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