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ENGINE PROBLEMS
Observe Safety Guidelines detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF
MISADJUSTMENT(S)
RECOMMENDED
COURSE OF ACTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely,
contact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed.
Call 1-888-935-3877.
CAUTION
The Engine shuts off.
1. The Engine may be low on or out
of fuel.
2. The Oil level may be low. Check
and fill to proper level.
3. The fuel filter may be clogged.
1. The oil pressure switch may be
faulty. Replace if necessary.
2. The fuel shut off solenoid may
be faulty (Kohler Engines only).
Engine does not develop full
power.
1. The fuel filter may be clogged.
Replace if necessary.
2. The air filter may be clogged.
Replace if necessary.
3. The spark plug(s) may be faulty.
Replace if necessary.
1. Due to wear, the engine may be
in need of repair.
TROUBLESHOOTING AND REPAIR
F-9 F-9
RANGER® 3 PHASE
Engine tries to start when S3 is in
start position, then shuts off when
switched to run.
1. Oil pressure switch may be
faulty.
2. Fuel Shutoff Solenoid Diodes
may be open.
1. Check Oil Switch should show
continuity when running/open
when off Switch. Replace oil
pressure switch if necessary.
2. Check engine diodes in engine
wiring harness. Replace if
necessary (Engine Mfg. Part).
Engine will not start with S3 in
start position, but then tries to
start or does start when S3 is
switched to run position.
1. Engine shutdown solenoid
diodes may be open.
2. Start switch (S3) may be faulty.
1. Check Engine diodes in engine
wiring harness. Replace if
necessary (Engine Mfg. Part).
2. Check start switch (S3).
Replace if necessary.
Engine will not shut off when S3
is placed “OFF” position.
1. Fuel shutoff solenoid may be
faulty or stuck open.
2. Start switch (S3) may be faulty.
1. Feel solenoid for clicking open
or closed. Replace if
necessary.
2. Check start switch (S3).
Replace if necessary.
Engine continues to crank when
S3 is switched to “RUN” position.
1. Engine shutdown solenoid
diodes may be shorted.
1. Check diodes. Replace Engine
Diodes (Engine Mfg. Part) if
necessary.
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