Weldarc 135, 145, 185 | Operator Manual | Model No MC110-0 / MC111-0 / MC112-0
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TIG Welding Operation
Connect the Work Clamp to the work piece.
Turn on the power switch located on the
rear panel. Wait approximately 5 seconds
as the unit goes through its initiation
sequence.
Use the Weld Mode Selection Switch to
select TIG Mode.
Select an appropriate welding current for
the job by setting the knob on the machine
front panel.
To initiate the arc, lightly touch the tungsten
electrode onto the work piece, then
smoothly lift it away to establish an arc
length slightly longer than the diameter of
the electrode.
Use of a copper striking plate can be used
to avoid electrode contamination. The
electrode can also be contaminated by
contact with the filler rod. A contaminated
electrode produces an unstable arc. if this
occurs regrind the electrode tip.
Dust
Care should be taken to prevent excessive
build-up of dust and dirt within the welding
power source. It is recommended that
at regular intervals, according to the
prevailing conditions, the equipment
covers be removed and any accumulated
dust be removed by the use of a dry, low
pressure compressed air, or a vacuum
cleaner. The machine should be blown
out with compressed air at least every 12
months as grinding dust can settle on PCB
componentry causing failure. Failure to
maintain machines may void warranty.
Before removing the equipment
cover, ENSURE that the equipment
is disconnected from the mains
power supply. When the equipment
is energised LETHAL VOLTAGES
are present on the electrical
components enclosed.
8 GENERAL MAINTENANCE
If you are in Australia and the
following checks do not identify the
fault condition, the equipment should
be returned to a WIA Service agent.
Phone 1300 300 884 for details of
your nearest service agent.
9 EXTERNAL TROUBLE SHOOTING
If you are in New Zealand and the
following checks do not identify
the fault condition, the equipment
should be returned to the original
place of purchase with proof of
purchase, or contact Weldwell on
06 8341 600.
Fig 4 Cable Connections for TIG welding
+
-
(-) Output
Terminal
to TIG
Torch
(+) Output
Terminal
Work Clamp