GAS INPUT CONNECTIONS
(External Air Supply)
Supply the machine with clean com- pressed air or
nitrogen.
•
Supply pressure must be between 60 psi
and 110 psi.
•
Flow rate should be approximately 125 - 200
SCFH (80 ±20 L/min).
NOTE: Oil in the air supply to the machine can cause
severe problems. Use only a clean air supply.
•
Compressed gas can be supplied either through the air
fitting supplied with through the connector at the rear
of the machine. To use the air fitting supplied with the
machine (packaged in the consumable kit).
•
If compressed air is being used, it is highly recom-
mended that an in line filter be installed in the air
supply line ahead of the air connection to the
machine.
•
A standard nominal 5 micron in line filter is recom-
mended; however, for optimum performance, select
a prefilter with a 3 micron absolute rating.
If these filter ratings are unavailable, anything with a
rating less than, or equal to, 20 micron would be
acceptable to use. In line filter elements will generally
filter the air with little restriction to the airflow until the
element is about 75% contaminated. After this point,
there will be a noticeable pressure drop in the line.
Filter elements should be replaced when a pressure
drop of 8-10 psi is indicated; however, for optimum
performance of the machine, the filter element should
be replaced at or before the pressure drop reaches 8
psi. Be sure to select a filter that will accommodate
the necessary flow rating for the machine as specified
in the Installation section of this instruction manual
under the Gas Input Connections heading.
NOTE: When using nitrogen gas from a cylinder, the
cylinder must have a pressure regulator.
•
Maximum psi from a nitrogen gas cylinder to
the machine regulator should never exceed
110 psi.
•
Install a hose between the nitrogen gas cylin-
der regulator and the machine gas inlet.
CYLINDER could explode if damaged.
WARNING
•
Keep cylinder upright and
chained to a fixed support.
•
Keep cylinder away from areas
where it could be damaged.
•
Never lift machine with cylinder
attached.
•
Never allow the cutting torch to touchthe
cylinder.
•
Keep cylinder away from live electrical
parts.
•
Maximum inlet pressure 110 psi.
------------------------------------------------------------------------
OUTPUT CONNECTIONS
Torch
The machine is sent from the factory with a cutting
torch and work clamp installed. The work clamp
must be securely connected to the work piece. If the
work piece is painted or extremely dirty it may be
necessary to expose the bare metal in order to make
a good electrical connection.
Compressor
This machine doesn’t h a v e a built-in compressor
that allows operation in areas where an air supply
is not available.
Read and understand this entire section before oper-
ating the machine.
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