Hitachi ZW140-6 Operator's Manual page 8

Periodic Replacement of Parts ................................................. 7-16
Kind of Oils ...................................................................................... 7-18
List of Consumable Parts ........................................................... 7-22
A. Greasing ...................................................................................... 7-25
B. Engine .......................................................................................... 7-31
Check Engine Oil Level .......................................................... 7-31
Change Engine Oil .................................................................. 7-32
Replace Engine Oil Filter ....................................................... 7-34
Check Crankcase Breather Tube ....................................... 7-35
Replace Crankcase Breather Filter Element ................. 7-36
Check Oil Drain Tube ............................................................. 7-37
C. Power Train ................................................................................ 7-38
Check Transmission Oil Level .............................................. 7-38
Change Transmission Oil ...................................................... 7-39
Clean Transmission Strainer ................................................ 7-39
Replace Transmission Oil Filter ........................................... 7-41
Change Axle Oil ....................................................................... 7-42
Check Oil Level ......................................................................... 7-43
Check Surroundings Around Axle and Covers for Oil
Leaks ...................................................................................... 7-44
Clean Axle Housing Air Breather ....................................... 7-44
D. Hydraulic System ..................................................................... 7-45
Inspection and Maintenance of Hydraulic Equipment ... 7-45
Check Hydraulic Oil Level .................................................... 7-47
Change Hydraulic Oil/Clean Hydraulic Oil Tank ........... 7-48
Bleed Air from the Hydraulic System. .............................. 7-49
Bleed Air from the Hydraulic Circuit................................. 7-49
Clean Suction Filter ................................................................ 7-50
Replace Pilot Oil Filter............................................................ 7-51
Replace Hydraulic Tank Oil Filter ....................................... 7-53
Replace HST Charge Filter .................................................... 7-55
Replace Air Breather Element ............................................. 7-56
Check Pilot Circuit Accumulator Function, Gas
Leakage, Looseness, and Damage .............................. 7-57
Replace Pilot Circuit Accumulator .................................... 7-58
Check Ride Control Accumulator Function, Gas
Leakage, Looseness, and Damage .............................. 7-58
Check Gas Pressure in Ride Control Accumulator ....... 7-58
Check Gas Pressure in Steering Accumulator ............... 7-58
Check Hoses and Lines ......................................................... 7-59
E. Fuel System ................................................................................ 7-64
Check Fuel Level ...................................................................... 7-64
Drain Water and Sediment from Fuel Tank .................... 7-66
Drain Fuel Filter ........................................................................ 7-67
Bleed Air from the Fuel System .......................................... 7-67
Replace Fuel Main Filter Element ...................................... 7-68
Replace Fuel Pre-Filter Element ......................................... 7-69
Clean Fuel Solenoid Pump Strainer .................................. 7-70
Check Fuel Hoses .................................................................... 7-71
F. Air Cleaner ................................................................................... 7-72
Clean and Replace Air Cleaner Element ......................... 7-72
G. Cooling System ........................................................................ 7-73
Coolant ....................................................................................... 7-73
Precautions for handling antifreeze ................................. 7-73
Check Coolant Level .............................................................. 7-74
Check Drive Belt ...................................................................... 7-75
CONTENTS
Check Drive Belt Tensioner .................................................. 7-76
Change Coolant ....................................................................... 7-77
Clean Radiator/Oil Cooler and Other Cooling
System ................................................................................... 7-78
H. Electrical System ...................................................................... 7-79
Batteries ..................................................................................... 7-79
Check Monitor Functions and All Other Instrument
Operation ............................................................................. 7-83
Check Lights ............................................................................. 7-84
Check Horn and Reverse Buzzer ........................................ 7-84
Check Electrical Harnesses and Fuses ............................. 7-85
I. Brake System ............................................................................... 7-87
Check Right and Left Brake Interlocking
Performance ........................................................................ 7-87
Check Parking Brake Force .................................................. 7-88
Check Accumulator Function, Gas Leakage,
Looseness, and Damage ................................................. 7-89
Check Gas Pressure in Accumulator ................................. 7-90
Check Brake Disks (Service and Parking) ........................ 7-90
J. Tire .................................................................................................. 7-91
Check and Replace Tire (Tire Pressure) ............................ 7-91
Check Tire for Damage .......................................................... 7-91
Check Wheel Bolt Torque ..................................................... 7-92
Removal and Installation of Tire .............................................. 7-95
K. Air Conditioner ......................................................................... 7-96
Clean/Replace Air Conditioner Circulation/Fresh Air
Filters ...................................................................................... 7-96
Check Air Conditioner .........................................................7-100
Check Air Conditioner Piping ...........................................7-100
Check Air Conditioner Condenser ..................................7-101
Check Air Conditioner Fan Belt ........................................7-101
Check Refrigerant .................................................................7-102
Check Compressor and Pulley ..........................................7-102
L. Miscellaneous ..........................................................................7-103
Check Bucket Teeth and Cutting Edge ..........................7-103
Check and Replace Seat and Seat Belt ..........................7-104
Check ROPS cab Mounting Bolts .....................................7-104
Check Windshield Washer Fluid Level ...........................7-104
Check Play Amount in Steering Wheel Stroke ............7-105
Check Accelerator Pedal Operation, and Exhaust
Gas Color and Noise .......................................................7-106
Check Rearview Mirror and Inside Rearview
Mirror ...................................................................................7-107
Check Steps and Handrails for Damage and
Looseness ...........................................................................7-107
Clean Engine Compartment and Hood ........................7-108
Check Sound Absorbing Mat Around Engine ............7-108
Check and Adjust Valve Clearance ..................................7-109
Retighten Front Axle and Rear Axle Support
Mounting Bolts .................................................................7-109
Tightening and Retightening Torque of Nuts and
Bolts ......................................................................................7-110
M. Aftertreatment Device ........................................................7-122
Check and Clean Aftertreatment Device ......................7-122
N. Urea SCR System ....................................................................7-123
Check DEF/AdBlue® ..............................................................7-125