Lincoln Electric OUTBACK SVM204-A Service Manual page 47

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Observe Safety Guidelines detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
Engine will not idle down. Weld
and auxiliary outputs are normal.
Engine idles own but will not stay
at low idle.
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 AND REPAIR
POSSIBLE AREAS OF
MISADJUSTMENT(S)
OUTPUT PROBLEMS
1. Check that the engine switch is
in the "Auto" position.
2. Check that the engine choke is
fully open.
3. There may be a load on the
weld or
Disconnect all cables and cords.
CAUTION
OUTBACK® 185
1. The idle solenoid may be
improperly adjusted. Perform
the Engine RPM adjustment
procedure.
2. With the engine running, place
the engine switch in the "Auto"
auxiliary output.
position. Check for battery
voltage at the idle solenoid,
lead 213B. if battery voltage is
not present, check engine
switch, connector P4/J4, and
leads 213A and 213B.
3. If battery voltage was detected
in step #2 above, check
connector P4/J4, leads 215
and 215A.
4. Check for AC voltage at leads
260 (J2-3) and 261 (J2-4).
With no load on either the weld
or auxiliary output, the meter
should read about 26 mV. If
the voltage is significantly
higher than this, the toroidal
current transformer may be
faulty, or improperly wired.
This may also indicate a load
on machine input or faulty
internal components drawing
current.
5. If the above readings are
normal, replace the PC board.
Low idle ROM may be set too low.
Perform
adjustment procedure.
RECOMMENDED
COURSE OF ACTION
the engine RPM
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