Komatsu PC200-8M0 Shop Manual page 511

200 General Information on troubleshooting
Checks before troubleshooting
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
6 Check of wiring harness for discoloration, burnt areas and cover peeling
7 Check for removal of wiring harness clamp and sagging of wiring 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 matter in connector
12 Check of wiring harness for open and short circuit
13 Check of fuse for blowing out and corrosion
14 Check of alternator voltage (when engine speed is medium or higher)
Check of battery relay operation sound (when starting switch is turned to
15
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 mirrors
1 Check of gauges and monitors
2 Check of seat belt
PC200, 200LC, 220, 220LC-8M0
Item
SEN06132-01
Criterion Remedy
– Retighten or replace
– Retighten or replace
– Retighten or replace
20 to 30 V Charge or replace
Between H
Add or replace
and L
– Repair or replace
– Repair
– Repair
– Repair or replace
– Repair or replace
– Dry, clean or replace
– Repair or replace
– Replace
After sev-
eral min-
utes
Replace
operation:
27.5 – 29.5
V
– Replace
– Clean or repair
– Repair
– Repair
– Clean or repair
– Clean or replace
– Repair
40-200
7