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D-2
Observe all Safety Guidelines detailed throughout this manual
PROBLEMS
(SYMPTOMS)
The torch does not start when the
trigger is pulled
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local
Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
TROUBLESHOOTING
POSSIBLE CAUSE
FUNCTION PROBLEMS
a. Blown fuse
b. Electrode or nozzle missing
c. Torch misconnected
d. Consumables are worn exces-
sively
e. Torch connections assembled
improperly or shorted
f. Cable damaged
g. Air is not connected or the pres-
sure setting is low.
CAUTION
PLASMA TORCH
RECOMMENDED
COURSE OF ACTION
a. Make sure all fuses are good
and the Pro-Cut is reconnected
for the proper voltage.
b. Properly assemble an electrode,
swirl ring, nozzle and shield cup
on the torch.
c. Make sure the torch is properly
connected to the front of the
Pro-Cut.
d. Replace electrode and nozzle
and replace shield cup hand
tight.
e. Remove the handles (or barrel)
of the torch and examine all the
connections. Pay attention to
location of electrode lead mount-
ing at back of torch head, bro-
ken trigger and solenoid leads.
f. Examine the cable for cuts or
punctures. Make sure there is
continuity from the nozzle at the
torch head to pins 7 & 8 at the
quick connect. Make sure there
is continuity from the electrode at
the torch head to the gas fitting
at the quick connect. Make sure
there is no blockage of airflow in
the cable. Make sure there is
continuity between pins 1 & 9 at
the quick connect while the trig-
ger is pulled. Replace any dam-
aged cable.
g. Check air supply and connec-
tions.
D-2
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