Miller Electric NT 450 - Manual (Page 28)

OM-2252 Page 24
SECTION 6 − MAINTENANCE & TROUBLESHOOTING
6-1. Routine Maintenance
.
Maintain more often during severe conditions.
! Disconnect power before maintaining.
n = Check Z = Change ~ = Clean Δ = Repair l = Replace
* To be done by Factory Authorized Service Agent
Every
3
Months
nl Labels n~ Weld Terminals
Every
3
Months
n Δ lCables And Cords
Every
6
Months
~:Durning heavy service, clean monthly.
6-2. Fuse F1
Ref. 800 101-C
! Disconnect input power be-
fore opening rear access
door.
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 door when finished.
1
Tools Needed:
3/8 in