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OUTPUT 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 goes to low idle, but
will not stay at low idle.
The machine has normal weld
and auxiliary output. The engine
starts and shuts down normally.
Make sure there are no external
loads on the weld terminals or
the auxiliary power receptacles.
Disconnect the weld cables and
unplug anything that may be
connected to the auxiliary
receptacles.
The low idle RPM may be too
low. Perform the Engine Idle
Adjustment Procedure.
The idle solenoid linkage may be
out of adjustment. Check that
the linkage moves freely and
that the plunger is not binding in
any way. Check that the
solenoid can freely pull in and
solidly seat against its internal
stop.
The idle solenoid may have
failed. Disconnect the solenoid
leads and check the resistance
of the solenoid coil. It should be
about 8.8 Ohms at 77 Deg. F
(25 Deg. C). Check the solenoid
for a grounded coil; the
resistance between chassis
ground and either solenoid lead
wire should be 500k Ohms
(500,000 Ohms) minimum.
There may be a poor or
intermittent connection in the
solenoid wiring, or a component
may be opening while under
load. Check the idle switch and
the wiring between the switch,
the solenoid, and the PC Board.
Repair or replace any poor
connections, damaged wiring, or
faulty components. (See wiring
diagram)
The idle/engine protection PC
board may be faulty.
TROUBLESHOOTING AND REPAIR
F-17 F-17
SAE-400 SEVERE DUTY
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