Lincoln Electric SP-135 PLUS IM725 Operator's Manual page 42

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Observe Safety Guidelines
detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
Low or no gas flow when gun
trigger is pulled. Wire feed, weld
output and fan operate normally.
PROBLEMS
(SYMPTOMS)
Arc is unstable – Poor starting
If for any reason you do not understand the test procedures or are unable to Perform the tests/repairs safely, contact your
LOCAL AUTHORIZED LINCOLN ELECTRIC FIELD SERVICE FACILITY for assistance before you proceed.
TROUBLESHOOTING
POSSIBLE AREAS OF
MISADJUSTMENT(S)
GAS FLOW PROBLEMS
1. Check gas supply, flow regulator
and gas hoses.
2. Check gun connection to
machine for obstruction or leaky
seals.
POSSIBLE AREAS OF
MISADJUSTMENT(S)
WELDING PROBLEMS
1. Check for correct input voltage
to machine – 115 vac.
2. Check for proper electrode
polarity for process.
3. Check gun tip for wear or dam-
age – Replace.
4. Check for proper gas and flow
rate for process.
5. Check work cable for loose or
faulty connections.
6. Check gun for damage or
breaks.
CAUTION
TROUBLESHOOTING GUIDE
RECOMMENDED
COURSE OF ACTION
Contact your local Lincoln
Authorized Field Service Facility.
RECOMMENDED
COURSE OF ACTION
Contact your local Lincoln
Authorized Field Service Facility.
SP-135 PLUS
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