Installation Of Shielding Gas (Gmaw) Process - Firepower FP 125 Operating Manual & Installation Manual

FIREPOWER FP 125,135,165

3.06 Installation of Shielding Gas (GMAW) Process

Refer to Figure 3-1.
NOTE!
Shielding Gas is not required if the unit is using self-shielded FCAW (flux cored arc welding) wires.
1. Cylinder Positioning: Chain the cylinder to a wall or other support to prevent the cylinder from falling over. If an optional por-
table mounting arrangement is used, follow the instructions that are provided with it.
2. Remove Cylinder Cap: Remove the large metal cap on top of the cylinder by rotating counter clockwise. Next remove the dust
seal.
3. Cracking: Position yourself so the valve is pointed away from you and quickly open and close the valve for a burst of gas. This
is called "Cracking" and is done to blow out any foreign matter that may be lodged in the fitting.
CAUTION
!
KEEP FACE WELL AWAY FROM THE CYLINDER VALVE DURING "CRACKING". Never "crack" a fuel gas cylinder
valve near other welding works, sparks or open flames. Ensure that the surrounding area is well ventilated.
4. Fit Regulator/Flowmeter to Cylinders:
Screw the regulator into the appropriate cylinder. The nuts on the regulator and hose connections are right hand (RH) threaded and
need to be turned in a clockwise direction in order to tighten. Tighten with a wrench.
CAUTION
!
Match regulator to cylinder. NEVER CONNECT a regulator designed for a particular gas or gases to a cylin-
der containing any other gas.
5. Attach Supplied Gas Line: Attach supplied gas line between the regulator output and the desired input at the rear of the
power supply depending on Spool Gun or MIG Gun use.
INSTALLATION 3-2 Manual 0-5123