
CONTENTS
Steps..................................................................................................1-94
Rear Grille........................................................................................ 1-94
Opening the rear grille.......................................................... 1-94
Closing the rear grille ............................................................ 1-94
Grease Gun Box............................................................................. 1-94
Vandal-Proof Devices..................................................................1-95
Seat Belt...........................................................................................1-96
BREAK-IN...........................................................................................2-1
Break-in Operation for New Machine.......................................2-1
OPERATING ENGINE.....................................................................3-1
Inspect Machine Daily Before Starting ....................................3-1
Check Before Starting....................................................................3-3
Starting Engine ................................................................................3-5
Starting in Cold Weather...............................................................3-7
Check After Starting .......................................................................3-8
Using Booster Batteries.................................................................3-9
Warming Up Operation.............................................................. 3-11
Warming Up Operation in Cold Weather.............................3-12
Stopping Engine...........................................................................3-14
DRIVING MACHINE .......................................................................4-1
Driving the Machine.......................................................................4-1
Starting to Move..............................................................................4-2
Parking Brake Switch......................................................................4-4
Drive Speed Change.......................................................................4-5
Changing Forward/Reverse Drive Direction..........................4-5
Steering Wheel.................................................................................4-6
Stop and Restart of Driving .........................................................4-7
Precautions for Driving on Slopes.......................................... 4-10
Precautions for Driving Speeds............................................... 4-11
Precautions to be Taken if Machine Failure Occurs.......... 4-12
Stop the Machine ......................................................................... 4-13
Parking .............................................................................................4-15
Emergency Evacuation............................................................... 4-16
OPERATING MACHINE.................................................................5-1
Control Lever.....................................................................................5-1
Control Lever Lock Switch............................................................5-2
Ride Control Switch (Optional)...................................................5-3
Lift Arm Kick Out..............................................................................5-5
Bucket Auto Leveler........................................................................5-6
Before Operation .............................................................................5-8
Precautions for Operation............................................................5-8
Ensure Safety When Operating on Road Shoulders ...........5-8
Avoid Overloading..........................................................................5-9
Avoid Rapid Steering Changes and/or Sudden Braking ...5-9
Avoid Operation with Biased Loads .........................................5-9
Excavation.......................................................................................5-10
Grading ............................................................................................5-12
Loading ............................................................................................ 5-13
Dozing.............................................................................................. 5-16
Scooping .........................................................................................5-16
Removing Snow............................................................................ 5-17
Lifting Wheel Loader................................................................... 5-17
Precautions for After Operations............................................ 5-18
TRANSPORTING .............................................................................6-1
Transporting by Road ....................................................................6-1
Transporting by Trailer ..................................................................6-1
Loading / Unloading on Trailer...................................................6-2
Fastening Machine for Transporting ........................................6-4
Transporting Wheel Loader (Urgent Situation)....................6-5
Towing Method................................................................................6-9
Lifting Machine ............................................................................. 6-10
MAINTENANCE...............................................................................7-1
Correct Maintenance and Inspection Procedures...............7-1
Check the Hour Meter Regularly................................................7-3
Layout..................................................................................................7-4
Preparations for Inspection and Maintenance .....................7-7
Lock Frames.......................................................................................7-9
Inspection/Maintenance Access Side Cover....................... 7-10
Rear Grille........................................................................................ 7-11
Inspection and Maintenance Table........................................ 7-12
Kind of Oils...................................................................................... 7-16
List of Consumable Parts ........................................................... 7-19
A. Greasing......................................................................................7-21
B. Engine..........................................................................................7-27
Check Engine Oil Level.......................................................... 7-27
Change Engine Oil..................................................................7-28
Replace Engine Oil Filter.......................................................7-30
C. Power Train ................................................................................ 7-31
Check Transmission Oil Level.............................................. 7-31
Change Transmission Oil......................................................7-32
Clean Transmission Strainer................................................7-32
Replace Transmission Oil Filter...........................................7-34
Change Axle Oil....................................................................... 7-36
Check Surroundings Around Axle and Covers for Oil
Leaks ......................................................................................7-38
Clean Transmission Air Breather........................................ 7-38
D. Hydraulic System.....................................................................7-39
Inspection and Maintenance of Hydraulic Equipment...7-39
Check Hydraulic Oil Level ....................................................7-41
Change Hydraulic Oil/Clean Hydraulic Oil Tank...........7-42
Clean Suction Filter ................................................................7-42
Replace Hydraulic Tank Oil Filter....................................... 7-44
Replace HST Charge Filter....................................................7-46
Replace Air Breather Element............................................. 7-48
Check Pilot Circuit Accumulator Function, Gas
Leakage, Looseness, and Damage ..............................7-49
Replace Pilot Circuit Accumulator .................................... 7-50
Check Ride Control Accumulator Function, Gas
Leakage, Looseness, and Damage ..............................7-50
Check Gas Pressure in Ride Control Accumulator
(Optional) .............................................................................7-50
Check Hoses and Lines .........................................................7-51
E. Fuel System................................................................................ 7-56
Check Fuel Level......................................................................7-56
Drain Water and Sediment from Fuel Tank.................... 7-58
Drain Fuel Pre-Filter................................................................7-59
Replace Fuel Main Filter Element...................................... 7-61
Replace Fuel Pre-Filter Element.........................................7-62
Check Fuel Hoses .................................................................... 7-63
F. Air Cleaner...................................................................................7-64