.A complete Parts List is available at www.MillerWelds.com

6-4. Aligning Drive Rolls and Wire Guide

! Turn Off power.

 

 

 

View is from top of drive rolls

 

 

 

looking down with pressure

 

 

 

assembly open.

 

Correct

Incorrect

1

Drive Roll Securing Nut

3

4

 

2

Drive Roll

2

 

 

3

Wire Guide

1

 

 

4

Welding Wire

 

 

5

5

Drive Gear

 

 

Insert screwdriver, and turn screw

 

 

 

in or out until drive roll groove lines up with wire guide.

Close pressure roll assembly.

Tools Needed:

Ref. 800 412-A

6-5. Troubleshooting

 

 

 

 

 

 

 

 

 

 

 

Welding Trouble

 

 

Remedy

 

 

 

 

No weld output; wire does not feed.

Secure power cord plug in receptacle (see Section 4-12).

 

 

 

 

 

Check power switch/supplementary protector, and reset if necessary. If supplementary protector is not

 

 

tripped, replace power switch.

 

 

 

 

 

Replace building line fuse or reset circuit breaker if open (see Section 4-12).

 

 

 

 

 

Thermostat TP1 or TP2 open (overheating). Allow fan to run; the thermostat will close when the unit has

 

 

cooled (see Section 6-2).

 

 

No weld output; wire feeds.

Connect work clamp to get good metal to metal contact.

 

 

 

 

 

Replace contact tip (see Section welding gun Owner’s Manual).

 

 

Low weld output.

Connect unit to proper input voltage or check for low line voltage (see Section 4-12).

 

 

Low, high, or erratic wire speed.

Readjust front panel settings (see Section ).

 

 

 

 

 

Change to correct size drive roll (see Section 6-3).

 

 

 

 

 

Readjust drive roll pressure (see Section 4-13).

 

 

 

 

 

OM-232 386 Page 27

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Miller Electric DVI-2 R manual Aligning Drive Rolls and Wire Guide, Troubleshooting, Welding Trouble Remedy, Turn Off power