Section 3 − Maintenance & Troubleshooting; Short Circuit Shutdown - Miller Electric Millermatic 155 And M-15 Gun Owner's Manual

SECTION 3 − MAINTENANCE & TROUBLESHOOTING
3-1. Maintenance
Damaged Or
3-2. Fuse F1
Tools Needed:
3/8 in

3-3. Short Circuit Shutdown

If contact tip is shorted and sticks to workpiece, the unit shuts down, but fan runs. To resume operation, release gun
trigger, turn Off unit, and remove contact tip from workpiece. Check contact tip and replace if damaged. Turn On unit to
continue operation.
OM-1314 Page 12
Y Disconnect power
before maintaining.
Replace
Unreadable
Labels
.
3 Months
Repair Or
Replace
Cracked
Cables
And Cords
6 Months
Blow Out Or
Vacuum Inside
1
2
Maintain more often
during severe conditions.
Y Turn Off unit, disconnect in-
put power. Unlatch door and
remove wrapper.
1 Circuit Board PC1
2 Fuse F1 (See Parts List For
Rating)
If F1 opens, wire drive motor shuts
down. Replace F1 if open.
Reinstall wrapper, and latch door.
Clean And
Tighten
Weld
Connections
stat_maint − 2/96
Ref. ST-801 552