Machine Push-Up Function Does Not Operate Normally - Komatsu Galeo PC800-8 Shop Manual

SEN00793-02
E-6 Machine push-up function does not operate normally
Failure • The machine push-up function does not oper-
phenomenon ate normally.
Relative
• When the machine push-up function is set in the high pressure position, the solenoid is turned OFF.
information
Defective machine push-up
1 switch
Possible causes
(Internal short-circuiting)
and standard
value in normal
state
Short-circuiting of wiring
2 harness
(Contact with 24 V circuit)
Circuit diagram related to machine push-up solenoid
20
Cause Standard value in normalcy and references for troubleshooting
aTurn the engine starting switch OFF for the preparations, and hold it in
the OFF position during the troubleshooting.
S05 (female)
Between (1) – (2)
aTurn the engine starting switch OFF for the preparations, and hold it in
the ON position during troubleshooting.
Wring harness between S05 (female) (2) – J01 –
V06 (female) (2) or between S05 (female) (2) –
D03 (female) (1) and chassis ground
(1) The machine push-up function does not operate.
Machine push-up
switch
Low pressure position
High pressure position
40 Troubleshooting
Resistance
Max. 1 z
Min. 1 Mz
Voltage Max. 1 V
PC800, 850-8