SHIELDING GAS
(For Gas Metal Arc Welding Processes)
Customer must provide cylinder of appropriate type
shielding gas for the process being used.
A gas flow regulator, for CO 2 or Argon blend gas, and
an inlet gas hose are factory provided with the
POWER MIG® 255XT.
CYLINDER may explode if
damaged.
• Gas under pressure is explosive.
Always Keep gas cylinders in an
upright position and always keep
chained
to
undercarriage
or
stationary support. See American
National Standard Z-49.1, "Safety
in Welding and Cutting" published
by the American Welding Society.
Install shielding gas supply as follows:
1. Set gas cylinder on rear platform of POWER MIG®
255XT. Hook chain in place to secure cylinder to
rear of welder.
2. Remove the cylinder cap. Inspect the cylinder
valves and regulator for damaged threads, dirt,
dust, oil or grease. Remove dust and dirt with a
clean cloth.
DO NOT ATTACH THE REGULATOR IF OIL,
GREASE OR DAMAGE IS PRESENT! Inform your
gas supplier of this condition. Oil or grease in the
presence of high pressure oxygen is explosive.
3. Stand to one side away from the outlet and open
the cylinder valve for an instant. This blows away
any dust or dirt which may have accumulated in
the valve outlet.
Be sure to keep your face away from the valve
outlet when "cracking" the valve.
4. Attach the flow regulator to the cylinder valve and
tighten the union nut(s) securely with a wrench.
INSTALLATION
WARNING
WARNING