Miller Electric XR Control - Manual (Page 38)

OM-1594 Page 32
7-2. Gun Drive Assembly Maintenance For An XR-Edge Gun
Ref. 801 556-C
Retract wire onto spool.
1
Screw
2 Drive 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.
3 Post
4 Pressure 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
7-3 and 7-8).
Close top cover.
Tools Needed:
5/16 in
1
2
3
4
Conductive
Grease