Hobart Welding Products 180 Changing Drive Roll Or Wire Inlet Guide, Replacing Gun Contact Tip

7-4. Changing Drive Roll Or Wire Inlet Guide

1

3

1Inlet Wire Guide Securing Screw

2Inlet 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

2

Tools Needed:

4

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.

.030/.035 Groove

Stamped .024

.023/.025 Groove

Stamped .030/.035

Ref. 803 714-A

7-5. Replacing Gun Contact Tip

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.

2

1

Tools Needed:

Ref. 802 399-A

OM-925 Page 25