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F-6
TROUBLESHOOTING AND REPAIR
F-6
LN-10
Observe all Safety Guidelines detailed throughout this manual.
PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF
MISADJUSTMENT(S)
RECOMMENDED
COURSE OF ACTION
The wire feeds and the gas sole-
noid operates but no arc voltage is
present.
1. Make certain the electrode and
work cables are connected
correctly.
2. Make certain the control cable
between the LN-10 and the
power source is in good working
condition.
3. Make certain the power source
is operating properly and capa-
ble of producing welding voltage
and current.
4. Make certain the welding gun
and cable are in good operating
condition.
1. Check the continuity (zero
ohms) of leads #2 and #4
between the input cable recep-
tacle and plug J8 on the control
board. See the Wiring Diagram.
2. The control board may be
faulty.
FUNCTION PROBLEMS (Continued)
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact the Lincoln Electric
Service Department for technical troubleshooting assistance before you proceed. Call 1-800-833-9353.
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