4-6 General Troubleshooting TP-5606 6/02
Problem Possible Cause Corrective Action Reference
Generator No/low oil pressure Check oil level, oil Engine Service Manual
set shuts pressure, and oil pump,
down by
itself
(continued)
High water temperature Check engine cooling Engine Service Manual
shutdown system
Low oil pressure switch, Disconnect lead from one switch and isolate
high engine temperature the lead from ground. If engine continues to run, replace
switch that switch.
NOTE: Verify proper pressure, or temperature
before replacing switch.
Problem Possible Cause Corrective Action Reference
Will not Excessive load Reduce electrical load Section 3. Wattage
carry load connected to Requirements
or runs generator
rough
Improper cooling Inspect cooling system Section 3. Cooling System
(hot engine only)
Governor not properly Check speed using Section 3. Governor
adjusted or defective tachometer or
(Engine not operating frequency meter.
at rated rpm)
NOTE: For 60 Hz--1800 RPM
For 50 Hz--1500 RPM
Engine in need Contact Kohler Engine Service
of overhaul distributor Distributor
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