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FAST MATE GUNS SERIES
OPERATION
Read and understand this entire section before operating
the machine.
WARNING
ELECTRIC SHOCK can kill.
•
Do not touch electrically live parts such
as output terminals or internal wiring.
•
Insulate yourself from the work and
ground.
•
Always wear dry insulating gloves.
FUMES AND GASES can
be dangerous.
•
Keep your head out of fumes.
•
Use ventilation or exhaust to remove
fumes from breathing zone.
WELDING SPARKS can cause fire
or explosion.
•
Keep flammable material away.
•
Do not weld upon containers which have
held combustibles.
ARC RAYS can burn.
•
Wear eye, ear and body protection.
GENERAL DESCRIPTION
®
The Magnum
200FM and Magnum Pro Curve
cable assemblies have been designed to meet NEMA specification
EW3 for welding with steel electrode using the GMAW (gas metal
arc welding) and gas-shielded FCAW (flux-cored arc welding)
processes:
®
The Magnum
200FM and Magnum Pro Curve
factory installed with a Fast-Mate (European style) wire feeder
connector for "all-in-one" GMAW feeder connection. A single
connector attaches welding current, wire liner, welding gas, and
trigger control leads to feeder. An optional K489-1 MAGNUM
Fast-Mate Adapter allows the use of these guns with any Lincoln
LN-7, LN-8, LN-9 and SP200 wire feeder. An optional K489-2
®
Magnum
Fast-Mate Adapter is required for the LN-25.
For best results when welding mild and alloy steels, it is
recommended that L-50 or Super Arc L-56 Lincoln solid wire
electrodes be used for the GMAW process and OS70 or OS71
®
Lincoln Outershield
cored electrodes for the gas-shielded FCAW
process.
ELECTRODES AND EQUIPMENT
The MAGNUM® PRO guns and cable has been designed for use
with Lincoln L-50 and L-56, solid steel wire electrodes for the
GMAW process and Lincoln Outershield® cored electrodes for the
gas-shielded FCAW process. Refer to the appropriate Lincoln
Process and Procedure Guidelines for the electrode used for
information on recommended electrical and visible stickouts.
MAKING A WELD
a.
b.
c.
d.
AVOIDING WIRE FEEDING PROBLEMS
Wire feeding problems can be avoided by observing the following
gun handling procedures:
a. Do not kink or pull cable around sharp corners.
b. Keep the electrode cable as straight as possible when welding
or loading electrode through cable.
c. Avoid wrapping excess cable around handle or front of wire
feeder.
d. Do not allow dolly wheels or trucks to run over cables.
e. Keep cable clean by following maintenance instructions.
f. Use only clean, rust-free electrode. The Lincoln electrodes
have proper surface lubrication.
g. Replace contact tip when the arc starts to become unstable or
®
200 FM gun and
the contact tip end is fused or deformed.
®
200 FM guns are
®
B-1
Check that the welding power source is on and that the
shielding gas supply is set for the proper flow rate.
Position electrode over joint. End of the electrode should
be slightly off the work.
Lower welding helmet, close gun trigger and begin
welding. Hold the gun so the contact tip to work distance
gives the correct electrical stickout as required for the
procedure being use.
To stop welding, release the gun trigger and then pull
the gun away from the work after the arc goes out.
Follow wire feeder instruction manual if using a trigger
interlock circuit.
OPERATION
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