Lincoln Electric 550, 350 manual Connect the GUN to the Wire Feeder

A-6 INSTALLATION A-6

5.REMOVING THE FUME TUBE ASSEMBLY (See figure A.7)

Figure A.7

•Loosen locking collar (counter clockwise, right-hand threads) on fume tube. Gas diffuser may remain in place.

• Slide the fume tube out of the gun handle.

• Slide the fume tube off of the gun tube.

CONSUMABLE PARTS

Contact tips	See Table A.3
Gas diffuser assembly	KP2747-1
Gas nozzle assembly, 5/8 inch opening	KP2743-2-62R
Fume collection nozzles	See Figure A.6

CONNECT THE GUN TO THE WIRE FEEDER

1.Make sure that the gun locking knob is loosened. Insert the gun into the gun conductor block and tighten the gun locking knob.

2.Make the gas connection from the feeder to the gun (if required).

3.Plug the trigger harness into the gunʼs Y-connector. Plug the trigger harnessʼ connector into the recep- tacle on the front of the feeder.

CONNECT THE GUN TO THE FUME COLLECTION SYSTEM

1.Speed setting for Lincoln Miniflex system: “High” is preferred for maximum fume collection.

2.Automatic / Manual setting (where available): Set to “Manual” mode so that fume collection system will continue running after welding. This ensures maxi- mum cooling of the gun. Fume collection system or gate valve to the gun may be shut off or closed after the gun has cooled for 10 minutes since the last

weld.

• Fume tube removed.

MAGNUM™ PRO 350 and 550 FUME GUNS