Hitachi ZW 120-6 Operator's Manual page 7

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
CONTENTS
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