Filter
Top Products
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC
Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC
TROUBLESHOOTING & REPAIR
PRO-CUT 60
F-5
PROBLEMS
(SYMPTOMS)
The air begins to flow, the
"OUTPUT ON" LED lights for a
short time, but no pilot arc is
established. The high frequen-
cy arc does NOT appear
across the torch tip.
POSSIBLE AREAS OF
MISADJUSTMENT(S)
1. Check the torch consum-
ables to be sure they are
installed securely. Make
sure they are not dirty or
greasy and are in good con-
dition. Replace the consum-
ables if necessary.
2. Check for the presence of
high frequency at the spark
gap, located inside the Right
Case Side Assembly panel
of the machine. The “spark”
normally will be present for
a second or two when the
torch trigger is pulled.
3. Check the high frequency
spark gap setting. It should
be at .060” (1.5mm). DIS-
CONNECT ALL INPUT
POWER BEFORE ADJUST-
ING THE HIGH FREQUEN-
CY CIRCUIT.
4. If the high frequency “spark”
is
present at the spark gap
located inside the panel, the
torch and cable assembly
may be faulty.
RECOMMENDED
COURSE OF ACTION
1.If the high frequency
"spark" is
present at the
spark gap located inside the
panel, the torch and cable
assembly may be faulty.
Perform the Torch, Torch
Cable Assembly, and
Internal Trigger and Safety
Circuit Tests.
2.If the high frequency
"spark" is not present at the
spark gap, check that pilot
control relay (CR2) contacts
close when the torch trigger
is pulled.
a. If pilot control relay
(CR2) contacts close when
torch trigger is pulled, per-
form High Voltage
Transformer Test.
b. If pilot control relay
(CR2) contacts DO NOT
close, test for 115 VAC
between leads #36 and #31
on pilot control relay (CR2)
when the torch trigger is
pulled. If 115 VAC IS pre-
sent, pilot control relay
(CR2) could be faulty.
Replace.
If 115 VAC IS NOT pre-
sent, check plug J10 on
Control Board and asso-
ciated wires for loose or
faulty connections. If none
are found, Control Board
could be faulty. Replace.
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 216-383-2531 or 1-800-833-9353.
TROUBLESHOOTING GUIDE
Observe Safety Guidelines
detailed in the beginning of this manual.
OUTPUT PROBLEMS
CAUTION