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chipped, melted, cracked, or otherwise dam-
aged, the nozzle will adversely effect the
weld and should be replaced.
d. Reinstall the Nozzle (1a) after inspecting and
cleaning the Contact Tip.
Contact tip Inspection, cleaning, and replace-
ment
a. Make sure the entire Welding torch is com-
pletely cool before proceeding.
b. Remove the nozzle as explained above. Then
remove the contact tip.
c. Scrub the exterior of the contact tip clean
with a wire brush. Check that the contact tip
is the proper type for the wire size used.
d. Examine the hole at the end of the contact tip
for the following problems:
Shape: The hole should be an even circle, and
should not be oblong or have any bulges in it.
Size: The Contact Tip will decrease in effi-
ciency as the center hole enlarges. A Contact
Tip that measures 150% or more the original
size* should be replaced. (*.045" or more for
.030" tips; .035" or more for .023 tips).
e. If any problems are noted with a Contact Tip
(1b), it is recommended to have it replaced.
When inspection and maintenance is completed,
reinstall the Contact Tip (1b) and Nozzle (2b).
MAINTENANCE
WARNING: Make sure the Power Switch of
the Welder is in its "OFF" position and that the
tool is unplugged from the electrical outlet be-
fore performing any inspection, maintenance,
or cleaning procedures.
1. Before each use, inspect the general condi-
tion of the Welder. Check for loose cable con-
nections, misalignment or binding of the fan,
cracked or broken parts, damaged electrical
wiring, and any other condition that may affect
its safe operation. If abnormal noise or vibration
occurs, have the problem corrected before fur-
ther use. Do not use damaged equipment.
2. Periodically recheck all nuts, bolts, and screws
for tightness.
3. Periodically blow the dust from the cooling
vents with compressed air.
4. Verify that the cooling fan is operational be-
fore welding.
5. If the unit repeatedly shuts down from ther-
mal overload, stop all use. Have the welder
inspected and repaired by a qualified service
technician.
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6. Store the welder and accessories in a clean
and dry location.
7. Periodically disassemble and clean the Torch
Head components with steel wool. Replace
burnt, cracked, distorted, or coated compo-
nents, Refer to the assembly drawing.
8. To gain access to the internal components of
the unit, remove screws from Main Body Cover.
The home user is strongly advised not to remove
the tool covers and not to attempt any elec-
tronic repairs. Any repairs must be completed
by a qualified technician. Opening the tool will
void any warranties, and may result in damage
to equipment or possible personal injury. Don't
do it.
9. On a daily basis check for any of the following
problems: If any are found, take the tool to a
qualified repair technician.
a. Abnormal vibration, sound or smell.
b. Abnormal heating at any cable connection.
c. Then fan does not work properly.
d. Any switch or control does not work properly.
e. Any damage to cables.
TROUBLESHOOTING
Be CERTAIN to shut off the MIG Welder, and
disconnect it from power and air before adjust-
ing, cleaning, or repairing the unit. A technician
should discharge all capacitors before perform-
ing and internal procedures.
WIRE FEED MOTOR RUNS BUT WIRE DOES
NOT FEED PROPERLY
Insufficient wire feed pressure: Increase wire
feed pressure properly.
Incorrect wire feed roll size: Replace with the
proper one - follow the wire spool instructions.
Damaged torch, cable, or liner assembly: Have
a qualified technician inspect these parts and
replace as necessary.
WIRE CREATES A BIRDS NEST DURING OP-
ERATION
Excess wire feed pressure: Adjust wire feed
pressure properly.
Incorrect contact tip size: Replace with the
proper tip for the wire size used.
Gun end not inserted into drive housing prop-
erly: Loosen gun securing bolt and push gun
end into housing just enough so that it does not
touch wire feed mechanism.
Damaged liner: Have a qualified technician in-
spect and repair/replace as necessary
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