Miller Auto Deltaweld 452 Manuel du propriétaire - Page 15
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3-2. Duty Cycle And Overheating
Overheating
SECTION 4 − MAINTENANCE & TROUBLESHOOTING
4-1. Routine Maintenance
0
Minutes
Y Disconnect power before maintaining.
Replace
Unreadable
Labels
OR
100% Duty Cycle
Continuous Welding
15
OR
Reduce Duty Cycle
3 Months
Repair Or
Replace
Cracked
Weld
Cable
6 Months
Blow Out Or Vacuum
Inside,
During Heavy Service,
Clean Monthly
Duty Cycle is percentage of 10 min-
utes that unit can weld at rated load
without overheating.
If unit overheats, thermostat(s)
opens, output stops, and cooling
fan runs. Wait fifteen minutes for
unit to cool. Reduce amperage or
duty cycle before welding.
Y Exceeding duty cycle can
damage unit and void war-
ranty.
V
duty1 4/95 / SA-168 918
Clean And
Terminals
OM-223 Page 19
Tighten
Weld