Harbor Freight Tools 66787 Welding System User Manual


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Page 14SKU 66787 For technical questions, please call 1-800-444-3353.
grounded, 240 V~, GFCI-protected
receptacle and turn the Welder on.
Turn the Gas Flow Knob on the torch 5.
counterclockwise to allow the shield-
ing gas to ow.
Tilt the torch forward, towards the 6.
workpiece. Keep a constant distance
between the torch and the workpiece
but do not contact it.
Feedthellermetalintothearc7.
with a properly insulated holder
(not included).
Turn Gas Flow Knob on TIG torch to 8.
adjust the ow of shielding gas.
After welding, hold Torch in a safe di-9.
rection, turn off the welder, close the
Gas Flow Knob on the torch (clock-
wise), and unplug the welder. Then,
place the torch on a nonconductive,
nonammable surface, and close the
argon supply at the argon bottle.
MAINTENANCE AND
SERVICING
Proceduresnotspecically
explained in this manual
must be performed only by a
qualiedtechnician.
TO PREVENT
SERIOUS INJURY
FROM ACCIDENTAL
OPERATION: Turn the Power
Switch (16) of the Welder to
its “OFF” position and unplug
the tool from its electrical
outlet before performing any
inspection, maintenance, or
cleaning procedures.
TO PREVENT SERIOUS
INJURY FROM TOOL
FAILURE: Do not use
damaged equipment. If
abnormal noise or vibration
occurs, have the problem
corrected before further use.
BEFORE EACH USE, inspect the 1.
general condition of the Welder.
Check for loose screws, misalignment
or binding of moving parts, cracked
electrode holder head or other broken
parts, damaged electrical wiring, and
any other condition that may affect its
safe operation.
PERIODICALLY2. , clean out the cool-
ing Vent (15) and Fan (14) with com-
pressed air.
The Ceramic Nozzle (3a/3b) on the 3.
Tig Torch will occasionally need to
be cleaned of spatter from welding.
Clean it with a metal brush. When
the nozzle deteriorates or can no
longer be cleaned, it will need to be
replaced. Unscrew the nozzle and
replace it with a new one.
For welding quality and ability, 4.
maintain a point on the tip.
AFTER USE,5. clean external surfaces
of the Welder with a clean cloth.
6. WARNING! If the Power Cord (17)
of this Welder is damaged, it must be
replaced only by a qualied service
technician.
WARNING
REV 09h
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