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Komatsu HD785-7 Shop Manual page 9

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00 Index and foreword
40 Troubleshooting
Failure code table and fuse locations
Failure codes table......................................................................................................................
Fuse locations ............................................................................................................................. 18
General information on troubleshooting
Points to remember when troubleshooting..................................................................................
Sequence of events in troubleshooting .......................................................................................
Check before troubleshooting .....................................................................................................
Classification and procedures for troubleshooting ......................................................................
Contents of troubleshooting table................................................................................................
Connection table for connector pin numbers ..............................................................................
T-branch box and T-branch adapter table ................................................................................... 44
Troubleshooting by failure code, Part 1
Failure code [1500L0] Dual engagement ....................................................................................
Failure code [15B0NX] Transmission oil filter: Clogging .............................................................
Failure code [15F0KM] R o F shifting abuse 1: Mistake in operation ........................................
Failure code [15F0MB] R o F shifting abuse 2: Mistake in operation ........................................
Failure code [15F7KM] Forward clutch disk abuse: Mistake in operation or setting ...................
Failure code [15G0MW] R clutch: Slipping .................................................................................
Failure code [15G7KM] Reverse clutch disk abuse: Mistake in operation or setting .................. 10
Failure code [15H0MW] Hi clutch: Slipping................................................................................. 12
Failure code [15J0MW] Lo clutch: Slipping ................................................................................. 14
Failure code [15K0MW] 1st clutch: Slipping................................................................................ 16
Failure code [15L0MW] 2nd clutch: Slipping............................................................................... 18
Failure code [15M0MW] 3rd clutch: Slipping............................................................................... 20
Failure code [15N0MW] 4th clutch: Slipping ............................................................................... 22
Failure code [15SBL1] R clutch solenoid: Fill signal is ON when command current is OFF....... 24
Failure code [15SBMA] R clutch solenoid: Malfunction .............................................................. 26
Failure code [15SCL1] Hi clutch solenoid: Fill signal is ON when command current is OFF...... 28
Failure code [15SCMA] Hi clutch solenoid: Malfunction ............................................................. 32
Failure code [15SDL1] Lo clutch solenoid: Fill signal is ON when command current is OFF ..... 34
Failure code [15SDMA] Lo clutch solenoid: Malfunction............................................................. 38
Failure code [15SEL1] 1st clutch solenoid: Fill signal is ON when command current is OFF..... 40
Failure code [15SEMA] 1st clutch solenoid: Malfunction ............................................................ 44
Troubleshooting by failure code, Part 2
Failure code [15SFL1] 2nd clutch solenoid: Fill signal is ON when command current is OFF....
Failure code [15SFMA] 2nd clutch solenoid: Malfunction ...........................................................
Failure code [15SGL1] 3rd clutch solenoid: Fill signal is ON when command current is OFF ....
Failure code [15SGMA] 3rd clutch solenoid: Malfunction ........................................................... 12
Failure code [15SHL1] 4th clutch solenoid: Fill signal is ON when command current is OFF .... 14
Failure code [15SHMA] 4th clutch solenoid: Malfunction............................................................ 18
Failure code [15SJMA] Lockup clutch solenoid: Malfunction ...................................................... 20
Failure code [2F00KM] Parking brake: Mistake in operation or setting....................................... 21
Failure code [2G42ZG] Accumulator: Oil pressure reduction (Front).......................................... 24
Failure code [2G43ZG] Accumulator: Oil pressure reduction (Rear) .......................................... 24
Failure code [989A00] Engine over run prevention command signal: Operating........................ 25
Failure code [989D00] Rear section tipping over alarm: Alarm is activated................................ 25
Failure code [A570NX] Engine oil filter: Clogging ....................................................................... 26
Failure code [AA10NX] Air cleaner element: Clogging ............................................................... 28
Failure code [AB00L4] Alternator: Failure on battery charge circuit
(R terminal signal is present and engine is stopped)............................................................... 30
Failure code [AB00MA] Alternator: Malfunction .......................................................................... 32
Failure code [AB00MB] Alternator: Failure on battery charge circuit
(Absence of R terminal signal and detection error) ................................................................. 34
Failure code [B@BAZG] Abnormal lowering of engine oil pressure: Lowering of oil pressure ... 36
Failure code [B@BAZK] Engine oil: Level too low ...................................................................... 38
Failure code [B@BCNS] Engine: Overheat ................................................................................ 40
Failure code [B@BCZK] Lowering of radiator coolant: Lowering of level ................................... 42
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