Changing Drive Roll Or Wire Inlet Guide; Replacing Gun Contact Tip - Hobart Welding Products Handler 140 Owner's Manual

7-4. Changing Drive Roll Or Wire Inlet Guide

1
2
Tools Needed:

7-5. Replacing Gun Contact Tip

Tools Needed:
4
.030/.035 Groove .023/.025 Groove
Stamped .024
3
Stamped .030/.035
2
1
1 Inlet Wire Guide Securing
Screw
2 Inlet Wire Guide
Loosen screw. Slide tip as close to
drive rolls as possible without
touching. Tighten screw.
3 Drive Roll
The drive roll consists of two differ-
ent sized grooves. The stamped
markings on the end surface of the
drive roll refers to the groove on the
opposite side of the drive roll. The
groove closest to the motor shaft is
the proper groove to thread (see
Section 5-10).
4 Retaining Pin
To secure drive roll, locate open slot
and push drive roll completely over
retaining pin, then rotate drive roll
(1/4 turn) to closed slot.
Ref. 803 714-A
Y Turn Off power before
replacing contact tip.
1 Nozzle
2 Contact Tip
Cut off welding wire at contact tip.
Remove nozzle.
Remove contact tip and install new
contact tip. Reinstall nozzle.
Ref. 802 399-A
OM-925 Page 25