MAGNUM 250 LX - OPERATING INSTRUCTIONS
5
LID
(POSITION UP)
CONTACT TIP
SPOOL COVER
KNOB
SPOOL COVER
TORCH BODY
IDLER ROLLER
PRESSURE
RELEASE LEVER
(POSITION UP)
Safety Precautions
WARNING
• Do not touch electrically live
parts or electrode with skin
or wet clothing
• Insulate yourself from work
and ground.
• Always wear dry insulating
gloves.
ELECTRIC SHOCK
can kill.
• Keep your head out of fumes.
• Use ventilation or exhaust to
remove fumes from breathing
zone.
FUMES AND GASES can be
dangerous.
• Keep flammable material
away.
• Do not weld on containers
that have held combustibles.
WELDING SPARKS can
cause fire or explosion.
• Wear eye, ear and body
protection..
ARC RAYS can burn.
WARNING: Electric shock can kill. Fumes and gases can be
dangerous to your health. Arc rays can injure eyes and burn
skin. See additional warning information under "Arc Welding
Safely Precautions" on inside of front cover of operating manual.
When inching, (the electrode and drive mechanism are always
electrically energized and remain energized several seconds
after the gun trigger is released.
Setup Procedure
Selecting Electrode Wire
Several alloy types of filler metals are available, and the best
choice depends on the type of base metals and the desired char-
acteristics of the weldment, such as ductility and strength, corro-
sion resistance, sustained service temperature, and anodictreat-
ment color matching. In addition, several wire sizes are available,
and the choice here will depend upon several factors, including
base metal thickness and the arc transfer process used.
Consult your local dealer or appropriate AWS publication for help
in selecting an appropriate alloy type and wire size. Also refer to,
"Procedure Settings" later in this chapter, for wire sizes used with
typical base metal thicknesses and procedure settings.
Loading Electrode Wire:
1. Unscrew gas nozzle and flip lid up on torch body then push idle
roller [pressure release lever up.
2. Unscrew and remove contact tip.
3. Unscrew spool cover knob and remove spool cover.
