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E-3
SP-175 PLUS
E-3
TROUBLESHOOTING
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.
CAUTION
PROBLEMS
(SYMPTOMS)
No wire feed when gun trigger is
pulled. Fan runs, gas flows and
machine has correct open circuit
voltage (33 VDC maximum) – weld
output.
Wire feed speed motor runs very
fast. Weld output, gas flow and fan
operate normally.
POSSIBLE
CAUSE
1. If the wire drive motor is running
check to see if the correct wire
is in the machine.
2. If the wire drive motor is running
make sure that the correct drive
rolls are installed in the
machine.
3. Check for clogged cable liner or
feeding problems.
4. Check brake adjustment (could
be too tight).
1. Make sure that the wire speed
control is not set at maximum.
RECOMMENDED
COURSE OF ACTION
Contact your local Lincoln
Authorized Field Service Facility.
FEEDING PROBLEMS
PROBLEMS
(SYMPTOMS)
Low or no gas flow when gun
trigger is pulled. Wire feed, weld
output and fan operate normally.
POSSIBLE AREAS OF
MISADJUSTMENT(S)
1. Check gas supply, flow regulator
and gas hoses.
2. Check gun connection to
machine for obstruction or leaky
seals.
RECOMMENDED
COURSE OF ACTION
Contact your local Lincoln
Authorized Field Service Facility.
GAS FLOW PROBLEMS
Observe Safety Guidelines detailed in the beginning of this manual.