Lincoln Electric RANGER 250 IM833-C Operator's Manual page 32

E-3
PROBLEMS
(SYMPTOMS)
Engine will not idle down to low
speed.
Engine will not go to high idle when
attempting to weld.
Engine will not go to high idle when
using auxiliary power.
Engine does not develop full power.
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
TROUBLESHOOTING
Observe all Safety Guidelines detailed throughout this manual
POSSIBLE
1. Idler switch in High idle position.
2. External load on welder or auxil-
iary power.
3. Faulty PC board or idler sole-
noid.
1. Poor work lead connection to
work.
2. "Contactor" switch is in wrong
position.
3. Faulty PC board. Low idle speed
set to low.
1. Auxiliary power load is less than
100 watts.
2. Faulty PC board.
1. Fuel filter clogged.
2. Air filter clogged.
3. Fouled spark plugs.
4. Valves out of adjustment.
RANGER 250
CAUSE
If all recommended possible areas
of misadjustment have been
checked and the problem persists,
Contact your local Lincoln
Authorized Field Service Facility.
CAUTION
RECOMMENDED
COURSE OF ACTION
E-3