Aligning drive rolls and wire guide, Troubleshooting, 4. aligning drive rolls and wire guide – Miller Electric DVI-2 R User Manual

Page 31: 5. troubleshooting

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

OM-232 386 Page 27

6-4.

Aligning Drive Rolls and Wire Guide

!

Turn Off power.

View is from top of drive rolls
looking down with pressure
assembly open.

1

Drive Roll Securing Nut

2

Drive Roll

3

Wire Guide

4

Welding Wire

5

Drive Gear

Insert screwdriver, and turn screw
in or out until drive roll groove lines
up with wire guide.

Close pressure roll assembly.

Ref. 800 412-A

Correct

Incorrect

4

3

2

1

5

Tools Needed:

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).

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