Komatsu PC130-7, Shop Manual, Page: 98 / 342

20-208
PC130-7
TROUBLESHOOTING POINTS TO REMEMBER WHEN CARRYING OUT MAINTENANCE
(1)
• Drying wiring harness
If there is any oil or dirt on the wiring harness,
wipe it off with a dry cloth. Avoid washing it in
water or using steam. If the connector must be
washed in water, do not use high-pressure
water or steam directly on the wiring harness.
If water gets directly on the connector, do as fol-
lows.
1) Disconnect the connector and wipe off the
water with a dry cloth.
a
If the connector is blown dry with com-
pressed air, there is the risk that oil in the
air may cause defective contact, so re-
move all oil and water from the com-
pressed air before blowing with air.
2) Dry the inside of the connector with a dryer.
If water gets inside the connector, use a
dryer to dry the connector.
a
Hot air from the dryer can be used, but
regulate the time that the hot air is used
in order not to make the connector or re-
lated parts too hot, as this will cause de-
formation or damage to the connector.
3) Carry out a continuity test on the connector.
After drying, leave the wiring harness dis-
connected and carry out a continuity test to
check for any short circuits between pins
caused by water.
a
After completely drying the connector,
blow it with contact restorer and reas-
semble.