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B-1
OPERATION
WELDING ARMS
B-1
SAFETY PRECAUTIONS
SHIELDING GAS CONNECTION
CYLINDER may explode if
damaged.
• Keep cylinder upright and
chained to support.
• Keep cylinder away from areas where it may be
damaged.
• Never lift welder with cylinder attached.
• Never allow welding electrode to touch cylinder.
• Keep cylinder away from welding or other live
electrical circuits.
• BUILD UP OF SHIELDING GAS MAY HARM
HEALTH OR KILL.
• Shut off shielding gas supply when not in use.
• See American National Standard Z-49.1, "Safety
in Welding and Cutting” Published by the
American Welding Society.
------------------------------------------------------------------------
Maximum inlet pressure is 100 psi.(6.9bar)
Install the shielding gas supply as follows:
1. Secure the cylinder to prevent it from falling.
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 DAM-
AGE IS PRESENT! Inform your gas supplier of this con-
dition. Oil or grease in the presence of high pressure oxy-
gen 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.
4. Attach the flow regulator to the cylinder valve and tighten
the union nut(s) securely with a wrench. Note: if connect-
ing to 100% CO
2
cylinder, insert regulator adapter
between regulator and cylinder valve. If adapter is
equipped with a plastic washer, be sure it is seated for
connection to the CO
2
cylinder.
5. Attach one end of the inlet hose to the outlet fitting of the
flow regulator. Attach the other end to the welding system
shielding gas inlet. Tighten the union nuts with a wrench.
6. Before opening the cylinder valve, turn the regulator
adjusting knob counterclockwise until the adjusting spring
pressure is released.
7. Standing to one side, open the cylinder valve slowly a
fraction of a turn. When the cylinder pressure gage stops
moving, open the valve fully.
8. The flow regulator is adjustable. Adjust it to the flow rate
recommended for the procedure and process being used
before making a weld.
WARNING