Kohler 10CCOZ61 Service Manual page 44

Problem
Hard starting
Dirty or faulty injectors
Improper type of fuel
Defective glow plugs
Problem
Generator
set shuts
down by
itself
output voltage to K1
TP-5648 8/93
Possible Cause
Stale or bad fuel
Air in fuel system
Water, dirt in fuel
system
Air cleaner clogged
Worn piston rings,
valves, etc.
Improper cooling
(hot engine only)
Defective GP relay
Possible Cause
No fuel in tank
Fuel line restriction
Clogged fuel filter
Defective fuel
pump
Air in fuel system
Engine overloaded
Engine overheated
(hot engine only)
Loss of generator
relay (LED1 not lit)
Air cleaner clogged
Corrective Action
Replace
Bleed air
Drain fuel system
and/or replace fuel filters
Check injectors
Use proper type of fuel;
consult fuel supplier
n or replace
Clea
element
Check compression
and oil consumption
Inspect cooling system
Check/replace glow plugs
Check/replace GP relay
Corrective Action
Replenish
Inspect fuel lines and
tank
Replace filter
Check fuel pump
NOTE:
Fuel pump is polarity
sensitive and will fail
if the lead connections
are made in reverse.
(Black lead is positive,
White/Black lead is negative)
Bleed air
Reduce electrical load
Check air intake,
governor adjustment,
oil level, etc.
Check AC voltage at
rectifier (BR1)
Check continuity of
B1/B2 stator leads
Clean or replace
element
Reference
Section 3. Fuel System
Engine Service Manual
Section 3. Fuel System
Section 3. Service Air
Cleaner
Engine Service Manual
Section 3. Cooling System
Engine Service Manual
Section 7. Engine/Generator
Components
Reference
Section 3. Fuel System
Engine Service Manual
Section 3. Fuel System
Section 3. Wattage
Requirements
Section 3. Scheduled
Maintenance
Engine Service Manual
Section 9. Wiring Diagrams
Section 7. Stator
Section 3. Servicing Air
Cleaner
General Troubleshooting 4-5