Kohler 10CCOZ61 Service Manual page 43

Problem
Will not start Weak or dead battery
(cranks
okay) (cont' d.)
Defective glow plugs
Problem
Engine
starts, but
stops after
start switch
is released
Open wiring (P1 or P2
K1 relay coil defective
relay is not receiving
High water temperature
4-4 General Troubleshooting
Possible Cause
Defective GP relay
Possible Cause
Incorrect generator
output voltage
connector)
If LED1 is not lit, K1
power from stator
B1/B2 winding
No/low oil pressure
Low oil pressure
switch, high engine
temperature switch
Corrective Action
Recharge battery.
Check electrolyte level
and specific gravity
(batteries with filler
caps only).
Perform load test,
or replace battery.
Check/replace glow plugs
Check/replace GP relay
Corrective Action
Check AC output
voltage.
Check continuity
Check continuity
Check oil level
Check/repair oil
pump
Check engine cooling
system
Disconnect lead from one switch and isolate
the lead from ground. If engine continues to run,
replace that switch.
NOTE: Verify proper pressure or temperature
before replacing switch.
Reference
Section 3. Battery
Engine Service Manual
Section 7. Engine/Generator
Components
Reference
Section 9. Wiring Diagrams
Section 7. Component
Testing--Separate Excitation
Section 9. Wiring Diagrams
Section 7. Controller
Circuit Board
Section 9. Wiring Diagrams
Section 7. Stator
Section 7. Engine/
Generator Components
Add oil if low
Engine Service Manual
Engine Service Manual
TP-5648 8/93