Hot Max Torches AC300 - Manual (Page 8)

Operation
KDAR Company 7
Powering Up the Welder
For most users, and 40Amp, 2 pole, 240V breaker will
work for most applications. If you find that you are
welding at the upper range of the rated output current
or if you find that you are overloading (tripping) the
breaker while welding, we suggest upsizing the break-
er to a 50 Amp, 2 Pole, 240V breaker. Once the
breaker size is confirmed, plug the welder into the ap-
propriate matching receptacle and turn the rotary pow-
er switch to the on position.
Welding Current Selection
Welding current selection is made by turning the crank
handle on the top of the welder. Turning clockwise
increases the amperage and turning counter clockwise
decreases the amperage. Amperage selected lines up
with the middle of the red indicator.
For the best results, the proper current selection is es-
sential. Check the electrode manufacturer’s recom-
mendations for the proper settings.
Ground Clamp
The ground clamp must be connected so that a circuit
can be completed in order create the arc required for
welding. The ground clamp can be connected directly
to the work piece or can be connected to a base metal
the work piece is in contact with.
Electrode
To insert the electrode into the 7 position electrode
holder, squeeze the holder to open the jaw and put the
bare end of the electrode into the desired position in
the holder. Release the jaw.
Welding
Strike an arc and begin to weld.
Maintenance
Regular preventative maintenance is not required for
the AC300 other than keeping dust/dirt away from the
machine. If the louvers become dusty or clogged,
simply wipe the cover off to remove the dust/dirt.
These welders have no user serviceable parts. Please
contact KDAR for any necessary repairs or replace-
ment parts.
Current Selection
Crank
Note: If you are new to welding, KDAR sug-
gests you get instruction from a qualified weld-
er prior to attempting to weld. Welding can be
dangerous if proper safety precautions are not
followed.