Hobart Hobart - Handler 210 MVP Handler 210 MVP

1 Inlet Wire Guide Securing Screw

Loosen thumbscrew. Slide tip as close to drive rolls as possible without touching. Tighten thumbscrew

The drive roll consists of two different 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 5-16). VK (Knurled) groove is used for flux cored wire and V groove is used for solid wire

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.

Using flux core wire with VK groove, tension should be set between 1-1/2 to 2. Higher setting may cause welding wire to deform and not allow proper feeding. Flux Core Wire − Recommended stickout is 1/2 in. (12.7 mm) from gun tip. Solid Wire − Recommended stickout is 3/8 in. (9.5 mm) from gun tip;

- Check and replace weld cables if necessary.

- Check and replace cords if necessary.

- Check and replace gun cables if necessary.;

1. Remove nozzle, contact tip, and adapter.

2. Cut off wire and disconnect gun from feeder

4. Lay gun cable out straight before installing new liner

7. Reassemble gun in reverse order from taking it apart;

Turn Off welding power source /wire feeder and disconnect gun

3. Remove switch housing. Install new switch and connect leads (polarity is not important). Reassemble in reverse order. If replacing head tube, continue to end of figure

5. Loosen jam nut. Remove from vice and turn head tube out by hand.

6. Hand-tighten head tube into cable connector

7. Place head tube in vice and tighten until nuts are tight

8. Remove from vice. Reposition handle halves, and install switch housing