Aligning Drive Rolls And Wire Guide; Diagnostic Light - Miller Electric Millermatic 212 Auto-Set Owner's Manual

6-4. Aligning Drive Rolls and Wire Guide

Tools Needed:

6-5. Diagnostic Light

The Diagnostic light provides diagnostic modes to help troubleshoot various malfunctions with the unit.
Status
Off
On
Flashing 1 Time
Flashing 2 Times
Flashing 3 Times
.
A complete Parts List is available at www.MillerWelds.com
Correct
4
3
2
1
Condition
Normal
Over Temperature
Trigger Error
Shorted Secondary
Motor Overcurrent
Incorrect
5
Error
Unit working properly
Unit overheated and output
stopped
Gun trigger is closed or shorted
when unit power is turned on.
Spoolmatic 15/30A gun trigger
was held closed for more than 30
seconds without striking an arc.
Standard MIG gun trigger was
held closed for more than 120
seconds without striking an arc.
Contact tip is directly shorted to
the workpiece. Arc shuts off in
this condition.
Malfunction in wire drive system
or motor overcurrent
Check for proper spool brake
adjustment or obstruction in the
wire feed system
Check wire guides, gun liner and
contact tip for obstruction
!
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
Remedy
None
Release trigger and let unit cool
before continuing welding
operation
Release trigger, then pull trigger
again to continue welding
Release trigger, move contact tip
off of workpiece and then pull
trigger again to continue welding
Release trigger, then pull trigger
again to continue welding
OM-238 118 Page 29