Hitachi ZW 120-6 Operator's Manual page 8

Inspect the Air Cleaner Element for Clogging .............. 7-64
Clean and Replace Air Cleaner Element ......................... 7-65
G. Cooling System ........................................................................ 7-66
Check Coolant Level .............................................................. 7-67
Check Drive Belt ...................................................................... 7-68
Replace Drive Belt ................................................................... 7-68
Replace Automatic Tensioner ............................................. 7-68
Change Coolant ....................................................................... 7-69
Clean Radiator/Oil Cooler and Other Cooling
System ................................................................................... 7-70
H. Electrical System ...................................................................... 7-71
Batteries ..................................................................................... 7-71
Check Monitor Functions and All Other Instrument
Operation ............................................................................. 7-75
Check Lights ............................................................................. 7-76
Check Horn and Reverse Buzzer ........................................ 7-76
Check Electrical Harnesses and Fuses ............................. 7-77
I. Brake System ............................................................................... 7-79
Check Brake Oil Level ............................................................ 7-79
Check Right and Left Brake Interlocking
Performance ........................................................................ 7-80
Check Parking Brake Force .................................................. 7-81
Check Brake Disks (Service and Parking) ........................ 7-82
Change Brake Oil ..................................................................... 7-82
J. Tire .................................................................................................. 7-83
Check and Replace Tire (Tire Pressure) ............................ 7-83
Check Tire for Damage .......................................................... 7-83
Check Wheel Bolt Torque ..................................................... 7-84
Removal and Installation of Tire .............................................. 7-87
K. Air Conditioner ......................................................................... 7-88
Clean/Replace Air Conditioner Circulation/Fresh Air
Filters ...................................................................................... 7-88
Check Air Conditioner ........................................................... 7-92
Check Air Conditioner Piping ............................................. 7-92
Check Air Conditioner Condenser .................................... 7-93
Check Air Conditioner Fan Belt .......................................... 7-93
Check Refrigerant ................................................................... 7-94
Check Compressor and Pulley ............................................ 7-94
L. Miscellaneous ............................................................................ 7-95
Check Cutting Edge ............................................................... 7-95
Check and Replace Seat and Seat Belt ............................ 7-96
Check ROPS cab Mounting Bolts ....................................... 7-96
Check Windshield Washer Fluid Level ............................. 7-96
Check Play Amount in Steering Wheel Stroke .............. 7-97
Check Accelerator Pedal Operation, and Exhaust
Gas Color and Noise ......................................................... 7-98
Check Rearview Mirror and Inside Rearview Mirror ... 7-99
Check Steps and Handrails for Damage and
Looseness ............................................................................. 7-99
Clean Engine Compartment and Hood ........................7-100
Check Sound Absorbing Mat Around Engine ............7-100
Check Engine Cylinder Head Bolts .................................7-101
Check Engine Compression Pressure ............................7-101
Check and Clean Starter and Alternator .......................7-101
Retighten Front Axle and Rear Axle Support
Mounting Bolts .................................................................7-101
CONTENTS
Check and Replace EGR Device .......................................7-102
Clean EGR Cooler ..................................................................7-102
Check Turbocharger .............................................................7-102
Check and Clean Injector Nozzle.....................................7-102
Tightening and Retightening Torque of Nuts and
Bolts ......................................................................................7-103
M. Aftertreatment Device ........................................................7-114
Check and Clean Aftertreatment Device ......................7-114
N. Urea SCR System ....................................................................7-115
Check DEF/AdBlue® Level ..................................................7-117
Replace DEF/AdBlue® Tank Water Supply Inlet
Filter......................................................................................7-121
Replace DEF/AdBlue® Supply Module Main Filter ....7-122
MAINTENANCE UNDER SPECIAL ENVIRONMENTAL
CONDITIONS ....................................................................................9-1
Maintenance Under Special Environmental Conditions ...9-1
Precautions for Maintenance During Cold Weather
Season ............................................................................................9-2
STORAGE ........................................................................................ 10-1
Storing the Machine .................................................................... 10-1
TROUBLESHOOTING ................................................................. 11-1
Troubleshooting ........................................................................... 11-1
SPECIFICATIONS ......................................................................... 12-1
Specifications ................................................................................. 12-1
OPTIONAL ATTACHMENTS ..................................................... 13-1
Hydraulic Type Quick Coupler Operation ............................ 13-1
INDEX ............................................................................................... 14-1