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PRECISION TIG 185
TROUBLESHOOTING & REPAIR
F-14 F-14
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TROUBLESHOOTING GUIDE Observe Safety Guidelines
detailed in the beginning of this manual.
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, con-
tact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call
1-888-935-3877.
STICK WELDING PROBLEMS
PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF
MISADJUSTMENT(S)
RECOMMENDED
COURSE OF ACTION
Stick electrode "Blasts Off" when arc
is struck.
The stick electrode "sticks" in the
puddle.
Variable or sluggish welding arc
when welding in the Stick mode.
1. Weld current may be set too high
for electrode size. Reduce cur-
rent control setting, or use a larg-
er diameter electrode.
1. The weld current may be set too
low. Increase the current control
setting or use a smaller diameter
electrode.
1. Check work and electrode cables
for loose or poor connections.
2. The weld cables may be too small
or too long to permit the desired
current to flow.
3. The weld current may be set too
low.
1. Perform the SCR Bridge Test.
2. The control board may be faulty.
Replace.
1. Check the polarity switch for
excessive wear or faulty connec-
tions.
2. Check interior connection of the
heavy current carrying leads.