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SECTION 7 − MAINTENANCE & TROUBLESHOOTING
7-1. Routine Maintenance
n = Check
* To be done by Factory Authorized Service Agent
Every
3
Months
nl Labels
Every
6
Months
~:During heavy service, clean monthly.
7-2. Fuse F1
Tools Needed:
3/8 in.
7-3. 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.
.
A complete Parts List is available at www.MillerWelds.com
!
Disconnect input power before maintaining.
Z = Change
~ = Clean
n~ Weld Terminals
1
Turn
Pull Out And Replace Fuse
(Install Flat End Of Fuse Into Cover)
Δ = Repair
nΔ lCables And Cords
2
Turn
l = Replace
!
Disconnect input power be-
fore opening rear access
door.
1
Fuse Holder Cover
2
Fuse F1 (See Section 8 For
Rating)
Fuse F1 protects control transform-
er from overload. If F1 opens, weld
output and fan motor stops. Re-
place F1.
Ref. 800 101-C
OM-223 Page 25