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TROUBLESHOOTING & REPAIR
F-9 F-9
RANGER 250
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely,
contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call
1-800-833-9353.
PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF
MISADJUSTMENT(S)
RECOMMENDED
COURSE OF ACTION
ENGINE PROBLEMS
The engine cranks but will not start. 1. Check for adequate fuel supply.
2. Check for adequate oil level.
3. The battery voltage may be too
low.
4. The fuel filter may be clogged or
the fuel contaminated. Replace
the fuel filter if necessary.
1. The oil pressure switch may be
faulty. See the Wiring Diagram.
2. The engine may be in need of
mechanical repair. Check for
spark and fuel.
The engine will not develop full
power.
1. The fuel filter may be clogged or
the fuel contaminated. Replace
the fuel filter 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
need major repair.
The engine will not crank when the
start button is pushed.
1. Check the circuit breaker (CB7).
Reset if tripped.
2. Make sure the Run/Stop switch
is in the “RUN” position.
3. Check for loose or faulty battery
cable connections.
4. The battery may be low or faulty.
5. The Start button may be faulty.
1. If the battery is replaced or tests
good, then the charging circuit
may be faulty. Perform the
Flywheel Alternator Test.
2. The starter motor or starter
solenoid may be faulty.
3. The engine may be hard to
crank due to a mechanical fail-
ure in the engine.
CAUTION
TROUBLESHOOTING GUIDE Observe Safety Guidelines
detailed in the beginning of this manual.