Komatsu D65EX-80001 Shop Manual page 12

Bulldozer
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SEN04931-14
Failure code [DXH5KA] 2nd clutch ECMV: Disconnection............................................................................ 37
Failure code [DXH5KB] 2nd clutch ECMV: Short circuit ............................................................................... 38
Failure code [DXH5KY] 2nd clutch ECMV: Short circuit ............................................................................... 39
Failure code [DXH6KA] 3rd clutch ECMV: Disconnection............................................................................. 40
Failure code [DXH6KB] 3rd clutch ECMV: Short circuit ................................................................................ 41
Failure code [DXH6KY] 3rd clutch ECMV: Short circuit ................................................................................ 42
Failure code [DXH7KA] R clutch ECMV: Disconnection ............................................................................... 43
Failure code [DXH7KB] R clutch ECMV: Short circuit................................................................................... 44
Failure code [DXH7KY] R clutch ECMV: Short circuit................................................................................... 46
Failure code [DXH8KA] F clutch ECMV: Disconnection................................................................................ 48
Failure code [DXH8KB] F clutch ECMV: Short circuit ................................................................................... 49
Failure code [DXH8KY] F clutch ECMV: Short circuit ................................................................................... 50
Failure code [DXJ4KA] Weq lock Sol.: Disconnection .................................................................................. 52
Failure code [DXJ4KB] Weq lock Sol.: Short circuit...................................................................................... 53
400 Troubleshooting of electrical system (E-mode)..........................................................................SEN05037-01
Before troubleshooting of electrical system ..................................................................................................
Information in troubleshooting table ..............................................................................................................
E-1 Engine does not start (starting motor does not turn) ..............................................................................
E-2 Preheater does not operate.................................................................................................................... 10
E-3 When starting switch is turned ON, machine monitor displays nothing.................................................. 16
E-4 When starting switch is turned ON (before starting engine), basic check item lights up ........................ 18
E-5 Precaution item lights up while engine is running................................................................................... 20
E-6 Emergency stop item lights up while engine is running.......................................................................... 22
E-7 Engine coolant temperature gauge does not indicate normally.............................................................. 24
E-8 Fuel gauge does not indicate properly ................................................................................................... 26
E-9 Power train oil temperature gauge (multi-gauge) does not indicate normally ........................................ 29
E-10 Hydraulic temperature gauge (multi-gauge) does not indicate normally .............................................. 30
E-11 Contents of display by machine monitor are different from applicable machine................................... 31
E-12 Machine monitor does not display some items..................................................................................... 31
E-13 Function switch does not work ............................................................................................................. 31
E-14 Operation mode does not change ........................................................................................................ 32
E-15 Gearshift mode does not change ......................................................................................................... 32
E-16 Customize function does not operate normally .................................................................................... 33
E-17 Customize memory function does not operate normally ...................................................................... 33
E-18 Alarm buzzer does not sound or does not stop .................................................................................... 34
E-19 When starting switch is turned OFF, service meter is not displayed .................................................... 34
E-20 Machine monitor cannot be set in service mode .................................................................................. 34
E-21 Horn does not sound or does not stop ................................................................................................. 35
E-22 Back-up alarm does not sound or does not stop .................................................................................. 36
E-23 Head lamp or rear lamp does not light up ............................................................................................ 38
E-24 Windshield wiper does not operate ...................................................................................................... 42
E-25 Window washer does not operate ........................................................................................................ 56
E-26 KOMTRAX system does not operate correctly..................................................................................... 61
500 Troubleshooting of hydraulic and mechanical system (H-mode) ...............................................SEN05038-00
Failure mode and cause table.......................................................................................................................
Contents of troubleshooting table .................................................................................................................
H-1 There is no travel power (no drawbar pull).............................................................................................
H-2 Machine does not move (at 2nd or 3rd speed).......................................................................................
H-3 Machine does not move at any gear speed ...........................................................................................
H-4 Machine travels only in one direction, forward or in reverse ..................................................................
H-5 When gear is shifted or travel direction is changed, large time lag is made ..........................................
H-6 Machine cannot be steered (Machine does not turn leftward or rightward) ........................................... 10
H-7 Steering speed or power is low .............................................................................................................. 10
H- 8 Brake does not work.............................................................................................................................. 11
H-9 Overheat of power train oil ..................................................................................................................... 12
H-10 Abnormal sound comes out from around HSS and work equipment pump or HSS motor................... 13
H-11 All work equipment speeds are slow .................................................................................................... 13
H-12 Work equipment does not move........................................................................................................... 14
10
00-100
100 Index
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5
7
2
4
5
6
7
8
9
D65EX, PX, WX-16

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