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TROUBLESHOOTING & REPAIR
F-12 F-12
RANGER 8
Observe Safety Guidelines
TROUBLESHOOTING GUIDE
detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF
MISADJUSTMENT(S)
RECOMMENDED
COURSE OF ACTION
ENGINE PROBLEMS
Engine will not crank or cranks very
slow.
1. Check for loose or faulty battery
cable connections.
2. The battery may be faulty.
3. Check the ammeter to see if the
battery is charging. If not, the
charging circuit may be defec-
tive.
1. If the battery is replaced or
tests good, then the charging
circuit may be faulty. Perform
the Charging Circuit 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.
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.
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, con-
tact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call
1-800-833-9353 (WELD).