Plasma Cutting Technique - Chicago Electric 97994 Set Up And Operating Instructions Manual

Note: If the input current is too high for the
Plasma Cutter, the overload protector
will activate and the cutter will stop
working. To reset, press the Circuit
Breaker (30) to begin cutting again.
(See Figure d.)
14. When finished cutting:
• Release the Trigger on the Cutting
Torch (13) and lift the Torch from
the workpiece.
Note: The air will continue to flow through
the end of the torch for about 20 sec-
onds to allow it to cool.
• Press the Power Switch (11) to its
"OFF" position.
• Set the Cutting Torch (13) down on
the metal workbench.
• Turn off the air supply.
• Unplug the Power Cord (32) from its
electrical outlet.
• Allow all components of the Plasma
Cutter to completely cool. Then
store the unit indoors out of chil-
dren's reach.
PLASMA CUTTINg
TECHNIQUE
1. Using a Plasma Cutter is a skill that
requires time and effort to do well.
Practice striking and maintaining
an arc on scrap workpieces before
beginning work. This will help you
gauge the best settings for the Plas-
ma Cutter for the material at hand.
2. You can cut any metal that will con-
duct electricity up to approximately
0.196" (5mm) thick mild steel or
equivalent. Very thin or very thick
metals are more difficult to cut clean-
ly.
SKU 97994 For technical questions, please call 1-800-444-3353.
3. Set the air pressure between 30 and
35 PSI. Increased air pressure will
increase plasma speed and cutting
pressure. Air pressure and amper-
age should be adjusted in tandem.
4. Start with a mid-range amperage set-
ting (10 amps) and adjust up or down
from there. Increased amperage will
increase cutting heat. This is needed
with heavier and harder metals.
However, increased amperage will
reduce duty cycle time.
5. Move the Cutting Head more slowly
for thicker and harder metals, and
more quickly for thin or soft metals.
Keep the Cutting Head moving while
cutting.
REV 09a
Page 13