Miller Electric 255 - Manual (Page 20)

OM-157 066 Page 16
SECTION 4 – MAINTENANCE & TROUBLESHOOTING
4-1. Routine Maintenance
Y Disconnect power
before maintaining.
.
Maintain more often
during severe conditions.
3 Months
Replace
Damaged Or
Unreadable
Labels
Clean And
Tighten
Weld
Terminals
Repair Or
Replace
Cracked
Cables And
Cords
6 Months
Blow Out Or
Vacuum Inside
Remove drive roll and
carrier. Apply light coat
of oil or grease to drive
motor shaft.
4-2. Circuit Breaker CB1
Ref. ST-800 924-C
1 Circuit Breaker CB1
If CB1 opens, wire feeding stops.
2 Welding Gun
Check gun liner for blockage or
kinks.
3 Wire Drive Assembly
Check for jammed wire, binding
drive gear or misaligned drive rolls.
Allow cooling period and reset
breaker. Close door.
1
2
3