Lincoln Electric RANGER 250 SVM150-A Service Manual page 60

F-10
Observe Safety Guidelines
detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
The engine shuts down shortly
after starting.
The engine will not idle down to low
speed. The machine has normal
weld output and auxiliary power.
The engine will not go to high idle
when using the auxiliary power.
Auxiliary power is normal when the
IDLER switch is in the "HIGH" posi-
tion. Automatic idle function works
properly when the welding termi-
nals are loaded.
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely,
contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call
1-800-833-9353.
TROUBLESHOOTING & REPAIR
POSSIBLE AREAS OF
MISADJUSTMENT(S)
ENGINE PROBLEMS
1. Check for adequate fuel supply
and a clean fuel filter.
2. Low oil level.
level. Start engine and look for
leaks.
3. Check the battery cables for
loose or faulty connections.
1. Make sure the IDLER switch is
in the "AUTO" position.
2. Make sure there is NOT an
external load on the weld termi-
nals or the auxiliary power
receptacles.
3. Check for mechanical restric-
tions in the idler solenoid link-
age.
1. Make sure the auxiliary power
leads are tight.
2. The automatic idler may not
function if the auxiliary power is
loaded to less than 100 watts.
CAUTION
RANGER 250
TROUBLESHOOTING GUIDE
RECOMMENDED
COURSE OF ACTION
1. Check the RUN/STOP switch
and associated leads for loose
or faulty connections.
Fill to proper
2. The oil pressure switch may be
faulty. Replace if necessary.
1. Check leads #210C and 215 for
loose or faulty connections.
See the Wiring Diagram.
2. Perform the Idler Solenoid
Test.
3. The Control Board may be
faulty.
1. Make sure leads #3 and #6
pass through the toroid twice in
opposite directions.
Wiring Diagram.
F-10
See the