Miller Electric XR Control manual Gun Drive Assembly Maintenance For An XR-Edge Gun

7-2. Gun Drive Assembly Maintenance For An XR-Edge Gun

1

2

3

Conductive

Grease

Tools Needed: 4

5/16 in

Retract wire onto spool.

1Screw

2Drive Roll

Use wire brush to clean drive roll. Install drive roll with hex opening down toward shaft hex, and secure with screw.

.Apply conductive grease to

drive roll post every 4 to 6 weeks.

3Post

4Pressure Roll w/Bearing

Use wire brush to clean pressure roll. Install pressure roll so that gear teeth mesh with drive roll gear teeth, and secure with screw.

If changing drive roll in feeder, see Section 7-1.

Thread welding wire through gun. Close and secure pressure roll assembly. Adjust drive roll pressure, if necessary (see Section 5-12).

Drive roll and pressure roll are available for the following wire sizes:

.030 wire size

.035 wire size

.047 wire size

.062 wire size

When changing wire size, change control box drive roll and idler (see Section 7-1), gun pressure roll and drive roll, and gun liner (see Section 7-3and 7-8).

Close top cover.

Ref. 801 556-C

OM-1594 Page 32