Chicago Electric 62204 Owner's Manual page 7

air Supply
tO preVent SeriOuS inJury anD DeatH FrOM eXpLOSiOn:
use only clean, dry, regulated, oil-free, compressed air or nitrogen gas with this plasma cutter.
Do not use oxygen, acetylene, carbon dioxide, combustible gases,
or any other bottled gas as a power source for this plasma cutter.
1� Use a compressor that is capable of
supplying 4�5 CFM @ 80 PSI�
2� Incorporate a filter, regulator with pressure gauge,
dryer, in‑line shutoff valve, and quick coupler for
best service� an in-line shutoff ball valve is an
important safety device because it controls
the air supply even if the air hose is ruptured.
the shutoff valve should be a ball valve
because it can be closed quickly.
note: in humid locations, multiple dryers may need
to be incorporated to keep the air dry. MOiSture
in air SuppLy May cauSe SHOrteneD
cOMpOnent LiFe anD pOOr cut QuaLity.
Setting compressor's air pressure
1� Set the Plasma Cutter's power
Switch to the OFF position�
2� Turn on the air compressor according to
the manufacturer's directions and allow it
to build up pressure until it cycles off�
Setting plasma cutter's air pressure
Plug in the Plasm Cutter, set the power Switch
1�
to the On position and set the air Switch to
Set air� There will be constant air flow�
Pull up on the air pressure regulator
2�
and set between 60 - 80 pSi, as observed
on the air pressure Gauge.
teSt air FLOW:
3�
WarninG! Make sure torch and
cutting tip are completely cool.
a� Hold Air Flowmeter firmly against end
of Cutting Tip, pointing Torch and Air
Flowmeter straight up� See Figure B.
b� The ball should float in the marked area on the
meter� If not, adjust air pressure, as needed,
while observing the Air Pressure Gauge�
4� iMpOrtant! After testing, set air Switch
to cut to allow normal operation�
ITEM 62204 For technical questions, please call 1-888-866-5797.
note: Do not use an oiler system with this
plasma cutter. the oil will mix with the air
being propelled, causing poor results.
3� Attach an air hose to the compressor's air outlet�
Connect the air hose to the Air Inlet on the back
of the Plasma Cutter� Other components, such
as a coupler plug and quick coupler, will make
operation more efficient, but are not required�
note: Air flow, and therefore Plasma Cutter
performance, can be hindered by undersized air
supply components�
The air hose must be long enough to reach
the work area with enough extra length to
allow free movement while working�
3� Set the air compressor's output air
pressure regulator between 90 - 120
pSi� Adjust the pressure gradually, while
observing the air pressure gauge�
4� Inspect the air connections for leaks�
Repair any leaks found�
air
Flowmeter
torch
Figure B
MAX
MIN
Ball
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