Hitachi ZW 550-6 Operator's Manual page 9

H. Electrical System ...................................................................... 7-80
Batteries ..................................................................................... 7-80
Electrolyte Level Check ................................................... 7-82
Check Electrolyte Specific Gravity ............................... 7-83
Replace Batteries ............................................................... 7-84
Check Monitor Functions and All Other Instrument
Operation ............................................................................. 7-84
Check Work Lights .................................................................. 7-85
Check Horn and Backup Alarm .......................................... 7-85
Check Electrical Harnesses and Fuses ............................. 7-86
Fuse Box A ............................................................................ 7-87
Fuse Box B ............................................................................ 7-87
I. Brake System ............................................................................... 7-88
Check Right and Left Brake Interlocking
Performance ........................................................................ 7-88
Check Brake Performance .............................................. 7-88
Check Play in Brake Pedal Stroke ................................. 7-88
Check Parking Brake Force .................................................. 7-89
Check Parking Brake Gear Oil Level .................................. 7-90
Change Parking Brake Gear Oil .......................................... 7-91
Check Accumulator Function, Gas Leakage,
Looseness, and Damage ................................................. 7-92
Check Brake Disks (Service and Parking) ........................ 7-93
Check Gas Pressure in Accumulator ................................. 7-93
J. Tire .................................................................................................. 7-94
Check and Replace Tire (Tire Pressure) ............................ 7-94
Check Air Pressure ............................................................. 7-94
Check Tire for Damage .......................................................... 7-95
Check Wheel Bolt Torque ..................................................... 7-95
Replace Tire.......................................................................... 7-95
Tire Sizes to be Used ......................................................... 7-96
Driving on Public Roads: Standard Pressure ............ 7-96
Tire Rotation ........................................................................ 7-97
Rotation Procedure ........................................................... 7-97
How to Check Wear Amount (Tread Design Groove
Depth).................................................................................... 7-97
Removal and Installation of Tire ................................... 7-98
Tire Wheel ............................................................................. 7-98
K. Air Conditioner ......................................................................... 7-99
Clean/Replace Air Conditioner Circulation/
Fresh Air Filters ................................................................... 7-99
Clean Fresh Air Filter ......................................................... 7-99
Clean Circulation Air Filter ............................................7-100
Check Air Conditioner .........................................................7-101
Check Air Conditioner Piping ...........................................7-101
Check Air Conditioner Condenser ..................................7-102
Check Air Conditioner Compressor Belt .......................7-102
Compressor Belt Tension Adjustment
Procedure ...........................................................................7-102
Check Refrigerant .................................................................7-103
Replace Air Conditioner Receiver Dryer .......................7-103
Check Compressor and Pulley ..........................................7-103
Check Compressor ..........................................................7-103
L. Aftertreatment Device .........................................................7-104
Check and Clean Aftertreatment Device ......................7-104
M. Urea SCR System ...................................................................7-105
CONTENTS
Specified DEF/AdBlue® .......................................................7-105
Check DEF Level ....................................................................7-106
Refill DEF .............................................................................7-106
Clean DEF Strainer ...........................................................7-107
DEF Exchange Procedure..............................................7-108
Replace DEF Supply Module Main Filter .......................7-109
Check Dosing Module .........................................................7-110
Replace DEF Tank Inlet Filter .............................................7-110
N. Miscellaneous .........................................................................7-111
Check Bucket Teeth ..............................................................7-111
Check and Replace Seat Belt and Lower Tether .........7-112
Check ROPS, ROPS Mounting Bolts, and Cab .............7-112
Check Windshield Washer Fluid Level ...........................7-113
Check Play Amount in Joystick Steering
Movement ..........................................................................7-113
Check Accelerator Pedal Operation, and Exhaust
Gas Color and Noise .......................................................7-114
Exhaust Gas Color and Noise ......................................7-114
Check Rearview Mirror and Inside Rearview
Mirror ...................................................................................7-115
Check Steps and Handrails for Damage and
Looseness ...........................................................................7-115
Clean Engine Compartment and Hood ........................7-116
Check Sound Absorbing Mat Around Engine ............7-116
Check and Adjust Valve Clearance ..................................7-116
Check Engine Compression Pressure ............................7-116
Check and Clean Starter and Alternator .......................7-116
Check Fuel Injector ...............................................................7-117
Check Turbocharger .............................................................7-117
Check and Adjust Engine Controller (ECM) .................7-117
Check and Clean EGR Valve ...............................................7-117
Check and Clean EGR Cooler ............................................7-117
Check Urea SCR System ......................................................7-117
Cleaning of Rear View Camera Lens ...............................7-118
Retighten Front Axle and Rear Axle Support
Mounting Bolts .................................................................7-118
Check Tightening Torque of Nuts and Bolts ................7-119
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
Removing the Machine from Storage ............................. 10-2
TROUBLESHOOTING ................................................... 11-1
Troubleshooting ........................................................................... 11-1
1. Engine ..................................................................................... 11-1
2. Engine Auxiliaries ............................................................... 11-1
3. Engine does not Start. ...................................................... 11-2
4. Control Lever ........................................................................ 11-3
5. Hydraulic System ................................................................ 11-3
6. Drive Function ..................................................................... 11-4
7. Others ..................................................................................... 11-5