Komatsu PC130-8 User Manual

40 Troubleshooting SEN04123-01
PC130-8
41
Circuit diagram related
Trouble (3) When left knob switch is released, work equipment power does not return to normal level.
Related infor-
mation
• Condition of left knob switch signal can be checked with monitoring function.
(Code: 02200 Switch input 1)
Possible causes
and standard
value in normal
state
Cause Standard value in normal state/Remarks on troubleshooting
1
Hot short (Short circuit with
24V circuit) in wiring harness
a Prepare with starting switch OFF, then turn starting switch ON
and carry out troubleshooting.
Wiring harness between CP02 (female)
(109) – V06 (female) (2)
Voltage Max. 1 V
2 Defective pump controller
If cause 1 is not detected, pump controller may be defective.
(Since trouble is in system, troubleshooting cannot be carried out.)

Komatsu PC130-8 Specifications

General

Brand	Komatsu
Model	PC130-8
Category	Excavators
Language	English