Gas Cylinder And Regulator Connection; Installing The Welding Wire - Forney SPOOL PRO HORNET SG 250 Operating Manual

Gas Cylinder and Regulator Connection

The gas cylinder (not supplied) should be located near the rear of the welder. It should be in a well-ventilated area and
securely fixed to the work bench or to the wall to ensure it will not fall.
For safety and economy, ensure that the regulator is fully closed (turned counterclockwise) when not in use and when
fitting or removing the gas cylinder.
•
Turn the regulator adjustment knob counterclockwise to ensure the valve is fully closed.
•
Screw the gas regulator down on the gas bottle valve and tighten.
•
Connect the gas hose to the regulator, securing with the clip/nut provided.
•
Connect the other end to the GAS INPUT on the back of the machine. If multiple GAS INPUT ports are present on the
back of your Forney welding machine, use the port that is designated for MIG welding.
•
Open the cylinder valve, then set the gas flow to approximately 20 - 35 CFH (cubic ft. per hour) on the regulator.
•
To verify that the cylinder was installed properly, depress the spool gun trigger to ensure that the gas is flowing
through the gun.
WARNING:
Cylinders are highly pressurized. Handle with care. Serious accidents can result from improper handling
or misuse of compressed gas cylinders. Do not drop the cylinder, knock it over, expose it to excessive heat, flames or
sparks. Do not strike it against other cylinders or strike an arc on it.

Installing the Welding Wire

ENSURE GAS AND ELECTRICAL SUPPLIES ARE DISCONNECTED. Before proceeding,
remove the nozzle and the contact tip from the spool gun.
WARNING: ELECTRIC SHOCK CAN KILL! Always turn the ON/OFF SWITCH (11) to the OFF position
and unplug the welder's INPUT POWER CABLE (12) from the AC power source before installing wire. When
the gun trigger is depressed, the drive rolls, spool of wire, wire being fed, and electrode are all electrically live
(hot).
Step 1: Remove the wire spool cover from the spool gun:
• Locate the wire spool cover release knob (C) and rotate it approximately 90 degrees counter-clockwise.
Once this motion has occurred, pull the knob away from the spool gun. This will remove the knob and the
wire spool cover.
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