Section 4 − Maintenance & Troubleshooting; Routine Maintenance; Circuit Breakers Cb1 And Cb2; Changing Drive Roll, Inlet Wire Guide - Miller MW225 Owner's Manual

SECTION 4 − MAINTENANCE & TROUBLESHOOTING

4-1. Routine Maintenance

Damaged Or

4-2. Circuit Breakers CB1 And CB2

4-3. Changing Drive Roll, Inlet Wire Guide

Tools Needed:
Y Disconnect power
Replace
Unreadable
Labels
Blow Out Or
Vacuum Inside
2
2
before maintaining.
3 Months
Repair Or
Replace
Cracked
Cables And
Cords
6 Months
Remove drive roll
and apply light coat
of oil or grease to
drive motor shaft.
1
1
.
Maintain more often
during severe conditions.
Clean And
Tighten
Weld
Terminals
Y Turn Off unit.
1 Circuit Breaker CB1
CB1 protects the transformer from
overload. If CB1 opens, wire
feeding stops.
2 Circuit Breaker CB2
CB2 protects the trigger circuit from
overload. If CB2 opens, weld output
stops.
Press button to reset circuit
breaker. Close door.
Ref. ST-801 567
1 Drive Roll
Choose correct drive roll for wire
type, and install as shown.
2 Inlet Wire Guide
Remove guide by pressing on
barbed area, or cutting off one end
near housing and pulling it out of
hole. Push new guide into hole from
rear until it snaps in place.
Ref. ST-801 569
OM-189 482 Page 19