Miller Electric 652 - Manual (Page 34)

OM-228 470 Page 30
SECTION 6 − MAINTENANCE & TROUBLESHOOTING
6-1. Routine Maintenance
! Disconnect and lockout/tagout input power before per-
forming maintenance or troubleshooting procedures.
n = Check Z = Change ~ = Clean l = Replace
* To be done by Factory Authorized Service Agent
Every
3
Months
l Unreadable Labels n l Weld Cables ~ Weld Terminals
Every
6
Months
OR
~ Inside Unit (monthly dur-
ing heavy service)
6-2. Fuse F1
Ref. ST-800 101-C
! Disconnect and lockout/tag-
out input power before
checking or changing fuse.
1 Fuse F1 (See Parts List For
Rating)
Fuse F1 protects control transform-
er from overload. If F1 opens, weld
output and fan motor stops. Re-
place F1.
Close and secure access door.
1
Tools Needed:
3/8 in
6-3. Short Circuit Shutdown
When contact tip is shorted and sticks to workpiece, the unit output falls to a safe operating level. 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.