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Component Identification and Explanation
#
Component I.D.
9
Welding Current
10
Burn Back Intensity
11
2T/4T Selector
12
Process Selection
Control Panel Layout
1
2
3
4
5
This controls the current output (amps) of the power source while welding in Stick or TIG mode, and while arc
gouging. This control is inactive while wire feed welding. Actual welding current (amps) will be reflected in the
current display. The 0 to 10 scales serves as a rough visual guide and can be tic-marked with a marker to pro-
vide reference points for various established welding chores.
To prevent the wire from sticking in the weld after feeding after the arc is terminated during wire feed welding,
burn back provides voltage for a short duration after the wire stops feeding. This is often caused by the fresh-
ly un-coiled wire spiraling down the MIG gun liner "decompressing" after feeding has stopped. This is most
prevalent when using wire too small for the liner. Burn back should be adjusted for intensity of effect. Different
wire diameters, weld positions, and even welding styles may require different amounts of burn back. For burn-
back to work properly, the MIG gun must be held over the end of the weld for a brief second. If continuity is
lost the wire may not burn back properly. Burn back also helps reduce the need for trimming the wire before
the next weld. Sometimes this is referred to as a "wire trimming effect." This is a 0-10 scale adjusted for effect.
2T and 4T are used only for wire feeding applications. This allows the user to select how the torch trigger
functions and allows the user to incorporate the use of the more advanced wire feed functions such as Crater
Voltage and Crater Current. 2T is simply a press and hold function. The trigger is pressed and held to start
the arc and released to stop. 4T is more complicated, but still relatively straight forward. When 4T is used the
trigger is pulled and held briefly while the arc is starting. When the arc is started, the trigger is released and
welding will continue without the the trigger being held down. When the arc is ready to be terminated, the
trigger is pressed and held again and the "Crater Fill" cycle will begin. The trigger is held until the crater has
been properly filled. When crater is filled, the trigger will be released and then the arc will stop. The burnback
cycle and brief post flow period will be started and finished automatically.
The process selector switches between different modes, MIG (all wire feed applications), DC scratch TIG with
manual gas valve control and Stick (MMA). The arc gouging function is done in the Stick (MMA) mode. Keep
in mind while arc gouging arc voltage is typically very high. Long arcs and use at the maximum settings may
trigger an overcurrent or duty cycle event more quickly than realized since this is a near 100% duty cycle
activity. The unit is designed to withstand carbon arc gouging, but some basic restraint should be observed
when setting the maximum amps when 100% duty cycle arc gouging activity is expected.
7
6
9
11
12
Component Note
30
8
10
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