MAGNUM 250 LX - OPERATING INSTRUCTIONS
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.
LID
(POSITION UP)
IDLER ROLLER
PRESSURE
RELEASE LEVER
(POSITION UP)
TORCH BODY
2.Unscrew and remove contact tip.
CONTACT TIP
3. Unscrew spool cover knob and remove spool cover.
SPOOL COVER 
KNOB
SPOOL COVER
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