Lincoln Electric VANTAGE 400 Service Manual page 63

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Observe Safety Guidelines detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
The engine starts but shuts down
immediately when the start button
is released.
The engine shuts down shortly
after starting.
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.
TROUBLESHOOTING & REPAIR
POSSIBLE AREAS OF
MISADJUSTMENT(S)
OUTPUT PROBLEMS
Make sure the glow plug button is
pressed while pushing the start
button, and held until the engine
protection light turns off (5 SEC-
ONDS MAXIMUM AFTER THE
ENGINE STARTS.). See the oper-
ator's manual, or the operating
section of this manual for proper
starting procedure.
Check the oil level.
Be certain that the engine is not
overheated.
Check that the machine had ade-
quate supply of fresh, clean fuel.
The fuel filter may be clogged.
Replace if necessary.
Check for adequate supply of
clean fresh fuel.
Check fuel and air filters, replace if
necessary.
Check oil level, add oil as
required. Look for oil leakage.
Check for loose or faulty battery
cable connections.
CAUTION
VANTAGE® 400
RECOMMENDED
COURSE OF ACTION
The shut down fuel solenoid may
be faulty or not operating properly.
Check lead #233 and #262 and
perform the FUEL SHUT DOWN
SOLENOID TEST. See wiring
diagram.
The check for the presents of 12
volts at the lead #233, when start
button is pushed. Check CB5,
and lead #231.
The Engine Protection Board may
be faulty.
The engine may have inadequate
oil pressure.
The oil pressure switch or coolant
temperature switch may be faulty.
The oil pressure switch or coolant
temperature switch may be faulty.
Make sure the engine has oil and
oil pressure and engine is not
overheated.
Disconnect lead 234 from Engine
Protection PC Board, of engine
continues to run oil pressure
switch or Temperature Switch is
faulty.
Check for faulty run/stop switch.
Check for damaged insulation in
the wiring between the engine pro-
tection relay and the oil pressure
and coolant temperature switches.
See wiring diagram.
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