Lincoln Electric Tomahawk 1000, Operator'S Manual

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A-4
INSTALLATION TOMAHAWK
®
1000
ENGINE dRIVEN GENERATOR
For use on engine drives, keep in mind the above input draw
restrictions and the following precaution.
The Tomahawk ® 1000 can be operated on engine driven
generators as long as the 230 volt auxiliary meets the following
conditions:
• The AC waveform peak voltage is below 400 volts.
• The AC waveform frequency is between 45 and 65 Hz.
The following Lincoln engine drives meet these conditions when
run in the high idle mode:
Outback 185, Ranger 225, Ranger 250, 250LPG, 305G and 305D
engine drives.
Vantage 300, 400, 500 and Air Vantage engine drives.
Operation of the Tomahawk ® 1000 is not recommended on engine
drives not conforming to these conditions. Such combinations may
overvoltage the Tomahawk
® 1000 power source.
GAS INPUT CONNECTIONS
(External Air Supply)
Supply the Tomahawk ® 1000 with clean compressed air or
nitrogen.
• Supply pressure must be between 80 psi and 110 psi.
• Flow rate should be approximately 275 SCFH (130 ±20%
LITERS/MIN.).
NOTE: Oil in the air supply to the Tomahawk ® 1000 can cause
severe problems. Use only a clean air supply.
• Compressed gas can be supplied either through the air fitting
supplied with the machine or through the 1/4-19 BSPP thread
at the rear of the machine. To use the air fitting supplied with
the machine (packaged in the consumable kit), apply teflon
tape to the fitting threads and install the fitting in the port at
the rear of the machine.
• If compressed air is being used, it is highly recommended that
an in line filter be installed in the air supply line ahead of the
air connection to the Tomahawk
® 1000.
• A standard nominal 5 micron in line filter is recommended;
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 Tomahawk
®
1000, 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 Tomahawk
® 1000
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 Tomahawk ®
1000 regulator should never exceed 110 psi.
• Install a hose between the nitrogen gas cylinder regulator and
the Tomahawk ® 1000 gas inlet.
CYLINDER could explode if
damaged.
• 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 touch the cylinder.
• Keep cylinder away from live electrical parts.
• Maximum inlet pressure 110 psi.
OUTPUT CONNECTIONS
Torch - The Tomahawk ® 1000 is sent from the factory with a
cutting torch and work clamp included. 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.
WARNING