Hobart Welding Products OM-1594 manual Removing Contact Tip Adapter In XR-Edge Guns

6-3. Removing Contact Tip Adapter In XR-Edge Guns

1Nozzle

2Adapter Nozzle

3Nozzle Adapter Locking Nut

	8	Loosen locking nut to remove
		nozzle and adapter nozzle.
7
		4 Contact Tip

2

1

6

5

4

3

5Collet Nut

6Quick Change Contact Tip Adapter

Remove contact tip from contact tip adapter.

7Insulated Sleeve

8Head Tube

Install insulated sleeve, then install and tighten new adapter into head tube. Reinstall contact tip, collet nut, adapter nozzle, and nozzle.

Tools Needed:

1/2 in

Ref. 802 253

6-4. Replacing Head Tube Liner In XR-Edge Guns

4

3

2

1

Insert chamfered end of liner into head tube.

.Turn OFF coolant supply before removing head tube on water-cooled gun.

Head tube liner is available for the following wire size ranges:

.030-.035 wire size

.047-1/16 wire size

When changing wire size, change control box drive roll and idler (see Section 6-1), gun pressure roll and drive roll (see Sections 6-2 and 6-7), and gun liner.

1Head Tube

2Head Tube Nut

Loosen head tube nut and remove head tube from gun.

3O-Ring

4Liner

Pull liner out of head tube. Be sure o-ring stays in place in groove. Re- place o-ring if necessary. If o-ring is replaced, o-ring must be installed before liner is inserted.

Insert new liner into head tube and reinstall head tube onto gun.

.Be sure head tube nut is securely tightened before operating gun. If head tube nut is not adequately tightened, un- wanted arcing may occur be- tween head tube and gun hous- ing.

Ref. 802 328

OM-1594 Page 33