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Eastwood Technical Assistance: 800.343.9353 >> [email protected]
TIG WELDING SET-UP AND OPERATION
SHIELDING GAS CONNECTION FOR TIG TORCH
BUILDUP OF GAS CAN INJURE OR KILL!
• Shut off shielding gas supply when not in use.
• Always ventilate confined spaces or use approved air-supplied respirator.
• Always turn your face away from valve outlet when opening cylinder valve.
CYLINDERS CAN EXPLODE IF DAMAGED!
•
Shielding gas cylinders contain gas under high pressure. If damaged, a cylinder can explode. As gas cylinders are a normal
component of the welding process, use extra care to handle them carefully.
• Protect compressed gas cylinders from excessive heat, mechanical shocks, physical damage, slag, open flames, sparks and arcs.
Keep away from any welding or other electrical circuits.
• Install cylinders in an upright position by securing to a specifically designed rack, cart or stationary support to prevent falling
or tipping over.
• Never weld on a pressurized cylinder or explosion will occur.
• Use only correct shielding gas cylinders, regulators, hoses and fittings designed for the specific application; maintain them and
all related components in good condition.
• Keep protective cap in place over valve except when cylinder is in use.
• Use proper equipment, procedures and have adequate help when moving or lifting cylinders.
A Shielding Gas Bottle is
NOT INCLUDED
with your Eastwood MP140i TIG Torch Kit but is necessary for TIG welding. A Shielding Gas Bottle can be bought at
most local Welding Supply Stores. Eastwood recommends the use of 100% Argon shielding gas when TIG welding Steel and Stainless Steel.
After connecting your Shielding Gas Regulator, the gas flow rate needs to be adjusted so that the proper amount of Shielding Gas is flowing over your weld. If
there is too little gas flow there will be porosity in your welds as well as excessive spatter, if there is too much gas flow you will be wasting gas and may affect
the weld quality.
• Place the Eastwood MP140i in its dedicated area or on a welding cart.
• Secure your Shielding Gas Bottle to a stationary object or mount to your welding cart if it is equipped to hold one so that the cylinder cannot fall over.
• Remove the cap from the Shielding Gas Bottle.
• Install the Regulator Knob on the Shielding Gas Regulator
(FIG 10)
.
• Insert the large brass male fitting on the Shielding Gas Regulator into the female fitting on the Shielding Gas Bottle
(FIG 11)
.
• Tighten the fitting with a wrench until snug, do not over tighten.
• Connect Tig Torch gas line to the fitting on the Regulator and wrench-tighten until snug
(FIG 11)
.
• Check the gas line for leaks by slowly opening the valve on the gas bottle. When welding, the valve on the bottle should always be fully open.
•
Do not use White Thread Sealing Tape on this connection as it is an inert gas fitting and does not require it, if you have a leak
check for burrs or dirt in the threads.
