Komatsu PC88MR-10 Shop Manual page 516

40 Troubleshooting
Related information on troubleshooting
a If the purified water is added to above
UPPER LEVEL (U.L.) line, remove the fluid
by using a syringe to lower the level to
UPPER LEVEL (U.L.) line. Neutralize the
removed fluid with baking soda (sodium
bicarbonate), then flush it away with a large
amount of water.
c6. Check of wiring harness for discoloration,
burn and cover peeling
Check the wiring harness and cables for
discoloration and burn.
a If discolored or burnt, the circuit may be shorted
or grounded.
Check the wiring harnesses and cables for
damage and peeling of the covers.
If any abnormality is found, repair or replace the
wiring harness or cables.
c7. Check for coming off of wiring harness
clamp and sagging of wiring harness
Check wiring harness for sagging and looseness
due to coming off of harness clamp
a In particular, carefully check the wiring harness
around the hot and movable parts.
If removed from the clamp, secure it with the
clamp.
c8. Check of grounding
a Be especially careful for loose ground terminals
and corrosion.
Open the left front cover at the lower part of the
cab.
Check the connection of ground terminals
(between cab and revolving frame (1), (T01).
40-28
Check the connection of ground terminals (T08)
to (T11), and (T14).
Check the connection of ground terminals (T12)
and (T13).
Open the engine hood.
PC88MR-10