Miller Electric XR Control manual Replacing Head Tube Liner In XR-Edge Guns, 030-1/16 wire size

7-3. Replacing Head Tube Liner In XR-Edge Guns

3

2

1

.Turn OFF coolant supply before

removing head tube on water-cooled gun.

The standard head tube liner will ac- commodate wire diameters from

.030-1/16 wire size.

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

1Head Tube

2Head Tube Nut

Loosen head tube nut and remove head tube from gun.

3 Liner

Pull liner out of head tube.

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

.A twisting motion may be need- ed to feed liner thru head tube.

.Be sure head tube nut is secure- ly tightened before operating gun. If head tube nut is not ade- quately tightened, unwanted arcing may occur between head tube and gun housing.

Ref. 801 556-C

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