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H8154 AC/DC Stick/TIG Welder
4. Release the torch thumb switch at any
time to raise the welding current to the
selected output current over the preset
upslope time of 0.2 seconds.
5. Press the thumb switch again to end the
welding operation.
6. The welding current decreases to the pre-
set finish current, and stays at the level
while the thumb switch is depressed.
7. Release the thumb switch at any time to
shut off the welding current.
8. The shielding gas continues to flow for
the post-flow time selected.
J. AC/DC Selector: Use this switch to select
AC or DC current output.
K. Pre-Flow Time Dial: This knob will control
the amount of time (0–10 seconds) gas will
flow through the TIG torch before the welding
current in turned on.
I. 2-Step/4-Step Selector (TIG only): Select
either the 2-step or 4-step sequence for TIG
welding.
Note: The foot remote control can be sub-
stituted for the torch thumb switch in these
steps.
—2-Step
1. To start the sequence, press and hold
the torch thumb switch.
2. Gas flows for 0.5 seconds to purge the
torch line of air.
3. The welding current starts with a preset
upslope time of 0.2 seconds from the pre
-
set starting current of 15A to the selected
output current
4. Release the thumb switch to end the
welding sequence.
5. The welding current decreases from the
selected output current to the preset fin
-
ish current over the preset downslope
time, then the welding current shuts off.
6. The shielding gas continues to flow for
the post-flow time selected.
—4-Step
1. To start the sequence, press the torch
thumb switch.
2. The welding current starts at the preset
starting current of 15 amps, and stays at
that level while the torch thumb switch is
depressed.
3. Gas flows for 0.5 seconds to purge the
torch line of air.