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Testing and adjusting accumulator charge pressure....................................................................... .30-60
Testing wheel brake oil pressure..................................................................................................... .30-62
Testing lowering of wheel brake pressure....................................................................................... .30-63
Testing wear of wheel brake disc .................................................................................................... .30-66
Bleeding air from wheel brake circuit .............................................................................................. .30-67
Releasing remaining pressure in brake accumulator circuit............................................................ .30-68
Testing parking brake performance................................................................................................. .30-69
Testing parking brake release pressure .......................................................................................... .30-70
Method of releasing parking brake manually................................................................................... .30-71
Hydraulic system...................................................................................................................................30-72
Testing and adjusting cooling fan speed ......................................................................................... .30-72
Testing cooling fan pump circuit oil pressure ....................................................................................30-73
Testing work equipment PPC oil pressure ........................................................................................30-74
Testing and adjusting work equipment oil pressure ..........................................................................30-75
Bleeding air from each part ...............................................................................................................30-76
Releasing remaining pressure in hydraulic circuit .............................................................................30-77
Work equipment....................................................................................................................................30-78
Testing and adjusting bucket positioner ............................................................................................30-78
Testing and adjusting boom kick-out switch......................................................................................30-79
Checking the proximity switch working pilot lamp .............................................................................30-80
Electrical system ...................................................................................................................................30-81
Adjusting replaced, reassembled or added sensor, controller, etc. with machine monitor................30-81
Special functions of machine monitor................................................................................................30-83
KOMTRAX terminal start-up procedure .......................................................................................... 30-137
Lamp indication of KOMTRAX terminal........................................................................................... 30-140
Handling voltage circuit of controller ............................................................................................... 30-144
Test diodes...................................................................................................................................... 30-145
Pm Clinic............................................................................................................................................. 30-146
Pm Clinic service............................................................................................................................. 30-146
40 Troubleshooting
Related information on troubleshooting ..................................................................................................40-8
Points to remember when performing troubleshooting........................................................................40-8
How to proceed in troubleshooting.................................................................................................... 40-10
Checks before troubleshooting.......................................................................................................... 40-12
Check procedure before troubleshooting .......................................................................................... 40-14
Preparation for troubleshooting of electrical system ......................................................................... 40-32
Classification and procedures of troubleshooting.............................................................................. 40-37
Symptom and troubleshooting No. .................................................................................................... 40-41
Information described in troubleshooting table.................................................................................. 40-43
Procedure for troubleshooting of open circuit in wiring harness of pressure sensor system ............ 40-45
Connector list and layout................................................................................................................... 40-48
Connection table of connector by No. of pins.................................................................................... 40-61
T-box and T-adapter list .................................................................................................................... 40-98
Fuse location table .......................................................................................................................... 40-102
Failure code list ............................................................................................................................... 40-105
Troubleshooting by failure code (Display of code).............................................................................. 40-113
Failure code [2F00MB] Malfunction of Parking Brake ..................................................................... 40-113
Failure code [2G42ZG] Accumulator Oil Pressure Low (Front)....................................................... 40-115
Failure code [2G43ZG] Accumulator Oil Pressure Low (Rear) ....................................................... 40-117
Failure code [6091NX] HST Filter Clogging .................................................................................... 40-119
Failure code [7RHYKA] Open Circuit of Fan Motor EPC Solenoid Output...................................... 40-121
Failure code [7RHYKB] Ground Fault of Fan Motor EPC Solenoid Output..................................... 40-123
Failure code [7RHYKY] Hot Short of Fan Motor EPC Solenoid Output .......................................... 40-125
Failure code [989FN1] Travel Speed Overrun Alarm ...................................................................... 40-127
WA200-7
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00 Index and foreword
Index
00-5
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