SEN00598-02 00 Index and foreword Failure code [DXJAKA] Q-drop EPC: Disconnection............................................................... 8 Failure code [DXJAKB] Q-drop EPC: Short circuit .................................................................. 10 Failure code [DXJAKY] Q-drop EPC: Short circuit .................................................................. 12 Failure code [DXJBKA] S/C ECMV: Disconnection ................................................................. 14 Failure code [DXJBKB] S/C ECMV: Short circuit..................................................................... 16 Failure code [DXJBKY] S/C ECMV:
Short circuit..................................................................... 18 Troubleshooting of electrical system (E-mode) SEN00807-01 Troubleshooting of electrical system (E-mode) ........................................................................... 3 Before carrying out troubleshooting for electrical system........................................................ 3 Information in troubleshooting table......................................................................................... 7 E-1 When starting switch turned ON, machine monitor displays nothing ...............................
8 E-2 When starting switch turned ON (before startingengine), basic check item lights up ...... 10 E-3 Engine does not start (Engine does not turn)................................................................... 12 E-4 Preheater does not operate ............................................................................................. 14 E-5 Precaution item lights up while engine is running ............................................................ 18 E-6 Emergency stop item lights up while engine is running ................................................... 20 E-7 Engine coolant temperature gauge does not indicate normally .......................................
22 E-8 Fuel level gauge does not indicate normally.................................................................... 23 E-9 Power train oil temperature gauge (multi-gauge) does not indicate normally.................. 25 E-10 Hydraulic temperature gauge (multi-gauge) does not indicate normally........................ 26 E-11 Contents of display by machine monitor are different from applicable machine ............ 29 E-12 Machine monitor does not display some items .............................................................. 29 E-13 Function switch does not work.......................................................................................
29 E-14 Operation mode does not change.................................................................................. 30 E-15 Gearshift mode does not change................................................................................... 30 E-16 Customize function does not operate normally.............................................................. 31 E-17 Customize memory function does not normally ............................................................. 31 E-18 Float mode does not change..........................................................................................
32 E-19 Alarm buzzer cannot be stopped ................................................................................... 32 E-20 Air conditioner does not operate normally (including air conditioner fault history)......... 33 E-21 When starting switch is turned OFF, service meter is not displayed .............................. 46 E-22 Machine monitor cannot be set in service mode............................................................ 46 E-23 Ripper pin puller cylinder does not operate.................................................................... 48 E-24 Backup alarm does not sound or does not stop.............................................................
50 E-25 Headlamp, rear lamp, and ripper point lamp do not light up .......................................... 52 E-26 Windshield wiper and window washer do not operate ................................................... 56 E-27 KOMTRAX system does not operate normally .............................................................. 72 Troubleshooting of hydraulic and mechanical system (H-mode) SEN00808-00 Troubleshooting of hydraulic and mechanical system (H-mode)................................................. 3 Information in troubleshooting table.........................................................................................
3 H-1 Power is low (Drawbar pull is low) ................................................................................... 4 H-2 Machine does not travel (at 2nd or 3rd gear speed)........................................................ 5 H-3 Machine does not start at any gear speed....................................................................... 6 H-4 Machine can travel only forward or in reverse ................................................................. 7 H-5 When gear speed or travel direction is changed, time lag is large .................................. 8 H-6 Machine cannot be steered (Machine does not turn right or left).....................................
9 H-7 Steering speed or steering force is low............................................................................ 9 H-8 Brake does not work ........................................................................................................ 10 H-9 Power train oil is overheated............................................................................................ 11 H-10 Abnormal sound comes out from around HSS pump or HSS motor.............................. 12 H-11 Speed of all work equipment is low ................................................................................
13 H-12 No work equipment moves ............................................................................................ 14 H-13 Blade lift speed or power is low ..................................................................................... 15 H-14 Blade tilt speed or power is low ..................................................................................... 16 H-15 Ripper lift speed or power is low.................................................................................... 17 H-16 Ripper tilt speed or power is low....................................................................................
18 H-17 Hydraulic drift of blade lift is large .................................................................................. 18 12 D155AX-6