Komatsu PC88MR-10 Shop Manual page 501

No.
1 Check of battery terminal for looseness and corrosion
2 Check of alternator terminal for looseness and corrosion
3 Check of starting motor terminal for looseness and corrosion
4 Check of battery voltage (with engine stopped)
5 Check of battery electrolyte level
Check of wiring harness for discoloration, burnt areas and cover
6
peeling
Check for coming off of wiring harness clamp and sagging of wiring
7
harness
8 Check of grounding
9 Check for loose connector and damaged lock
10 Check of connector pin for corrosion, bends and deformation
11 Check for water and foreign material in connector
12 Check of wiring harness for open circuit and short circuit
13 Check of fuse for blowout and corrosion
Check of alternator voltage (when engine speed is medium or
14
higher)
Check of battery relay operation sound (When the starting switch is
15
turned to ON or OFF position)
16 Check and cleaning of rear view camera
1 Check of undercarriage
2 Check of handrails and steps
3 Check of rear view mirrors
1 Check of gauges and monitors
2 Check of seat belt
PC88MR-10
Role
40 Troubleshooting
Related information on troubleshooting
Judge-
Remedy
ment
value
- Retighten or replace
- Retighten or replace
- Retighten or replace
20 to 30
Charge or replace
V
Between
Add or replace
H and L
- Repair or replace
-
Correct
-
Correct
- Repair or replace
- Repair or replace
Dry, clean or
-
replace
- Repair or replace
Replace
After few
minutes
of
Replace
operation:
27.5 to
29.5 V
- Replace
- Clean or repair
-
Correct
-
Correct
- Clean or repair
- Clean or replace
- Replace
40-13