Table of Contents
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00 Index and foreword
Testing wear of wheel brake disc............................................................................................. 13
Bleeding air from wheel brake circuit....................................................................................... 14
Releasing residual pressure in brake accumulator circuit ....................................................... 15
Testing parking brake performance ......................................................................................... 16
Testing parking brake oil pressure ........................................................................................... 17
Testing wear of parking brake disc .......................................................................................... 19
Method of releasing parking brake manually ........................................................................... 20
Testing and adjusting work equipment control lever................................................................ 21
Testing and adjusting work equipment PPC oil pressure ........................................................ 22
Testing and adjusting work equipment oil pressure................................................................. 25
Bleeding air from work equipment circuit................................................................................. 29
Releasing residual pressure in work equipment circuit ........................................................... 30
Procedure for testing of nitrogen gas pressure and charging of nitrogen gas of ECSS
(Electronically Controlled Suspension System) accumulator............................. 31
Testing and adjusting bucket positioner................................................................................... 37
Testing and adjusting boom kick-out ....................................................................................... 39
Checking proximity switch operation pilot lamp....................................................................... 40
Procedure for testing diodes.................................................................................................... 41
Preparation work for troubleshooting for electrical system ...................................................... 42
Starting KOMTRAX terminal operations .................................................................................. 47
Indicator lamps of KOMTRAX terminal.................................................................................... 52
Testing and adjusting, Part 3
Adjusting replaced, reassembled or added sensor, controller, etc. with machine monitor ......
Special functions of machine monitor (EMMS)........................................................................
Pm-clinic inspection table ........................................................................................................ 73
40 Troubleshooting
Failure code table and fuse locations
Failure code table ....................................................................................................................
Fuse locations ......................................................................................................................... 13
General information on troubleshooting
Points to remember when troubleshooting ..............................................................................
Sequence of events in troubleshooting ...................................................................................
Testing before troubleshooting ................................................................................................
Classification and procedures of troubleshooting....................................................................
Information contained in troubleshooting table ........................................................................
Connection table for connector pin numbers ........................................................................... 10
T- branch box and T- branch adapter table ............................................................................. 46
Troubleshooting by failure code (Display of code), Part 1
Failure code [1500L0] (TORQFLOW transmission: Double meshing)......................................
Failure code [15SAL1] (ECMV F clutch: When command current is OFF, fill signal is ON) .....
Failure code [15SALH] (ECMV F clutch: When command current is ON, fill signal is OFF) ....
Failure code [15SBL1] (ECMV R clutch: When command current is OFF, fill signal is ON).....
Failure code [15SBLH] (ECMV R clutch: When command current is ON, fill signal is OFF).... 10
Failure code [15SEL1] (ECMV 1st clutch: When command current is OFF, fill signal is ON)... 12
Failure code [15SELH] (ECMV 1st clutch: When command current is ON, fill signal is OFF).. 14
Failure code [15SFL1] (ECMV 2nd clutch: When command current is OFF, fill signal is ON).. 16
Failure code [15SFLH] (ECMV 2nd clutch: When command current is ON, fill signal is OFF). 18
Failure code [15SGL1] (ECMV 3rd clutch: When command current is OFF, fill signal is ON).. 20
Failure code [15SGLH] (ECMV 3rd clutch: When command current is ON, fill signal is OFF). 22
Failure code [15SHL1] (ECMV 4th clutch: When command current is OFF, fill signal is ON) .. 24
Failure code [15SHLH] (ECMV 4th clutch: When command current is ON, fill signal is OFF) . 26
Failure code [2F00MA] (Parking brake: Malfunction)................................................................ 28
Failure code [2G43ZG] (Accumulator: Low oil pressure).......................................................... 30
Failure code [44K0L4] (Bucket positioner: ON/OFF signals disagree) ..................................... 32
Troubleshooting by failure code (Display of code), Part 2
Failure code [AA1ANX] (Air cleaner: Clogging).......................................................................
WA430-6
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