Lincoln Electric IDEALARC SP-255 - Manual (Page 38)

IDEALARC SP-255
E-2 TROUBLESHOOTING
Observe Safety Guidelines
detailed in the beginning of this manual.
TROUBLESHOOTING GUIDE
PROBLEMS
(SYMPTOMS)
Major physical or electrical damage
is evident.
There is no wire feed or open
circuit voltage when the gun trigger
is pulled. The LCD display is “ON”
indicating input power to the
SP-255..
Output voltage and wire feed is
present when gun trigger is not
pulled (not activated).
POSSIBLE AREAS OF
MISADJUSTMENT(S)
Contact your LOCAL LINCOLN
AUTHORIZED FIELD SERVICE
FACILITY.
1. The gun trigger or cable may be
faulty. check or replace gun
assembly..
2. The thermal protection circuit
may be activated. Allow the
machine to cool and then reduce
the duty cycle and or wire feed
speed.
3. Make sure input voltage is
correct and matches nameplate
rating and reconnect panel
configuration.
1. Remove gun assembly from
machine. If problem is solved
gun assembly is faulty. Repair or
replace.
2. If problem persists when gun
assembly is removed from the
machine, then the problem is
within the SP-255.
RECOMMENDED
COURSE OF ACTION
If all recommended possible areas
of misadjustment have been
checked and the problem persists,
contact your local Lincoln
Authorized Field Service Facility.
OUTPUT PROBLEMS
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