Lincoln Electric Magnum PRO 250 LX Operator's Manual page 11

MAGNUM PRO 250 LX & LX GT SPOOL GUN
4. Select wire of size and type needed. Wire must be straight,
with no kinks or bends. Check drive roller for the correct
groove positioning for the size wire selected. See "Drive Roll
Groove Selection", for details.
5. Put wire spool on shaft. After spool wire is in place, make sure
the Spool Brake Lever is riding on outer flange of wire spool
and, the Roller Arm is underneath of spool riding on wire.
CORRECT
CORRECT
SPOOL BRAKE LEVER
INCORRECT
6. Unspool and straighten about 6 inches of wire, then route into
plastic tube.
ROLLER ARM
SPOOL BRAKE LEVER
ROLLER ARM
PLASTIC TUBE
7. Push wire until end of wire exits back tube and enters front
tube, passing between drive roll & pressure idler roll.
BACK TUBE
PRESSURE
IDLER ROLL
DRIVE ROLL
8. Push wire until wire end extends approximately 6" (150 mm)
past end of gas diffuser. Re-engage idle roll pressure by
pushing release lever down as shown above, then close lid.
9. Screw spool cover knob onto spool gun cover (making sure all
keyways line up).
SPOOL COVER KNOB
SPOOL COVER
10. Obtain contact tip size to match wire selected. Slip contact tip
over wire and screw into diffuser. Tighten securely.
GAS NOZZLE CONTACT TIP
11. Cut off wire close to contact tip, then screw gas nozzle over
the diffuser
5
OPERATION
FRONT TUBE
LID
DIFFUSER