.
A complete Parts List is available at www.MillerWelds.com
OM-232 384 Page 12
4-2.
Welding Power Source Duty Cycle And Overheating
6 Minutes Welding
4 Minutes Resting
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
voltage, or duty cycle before
welding.
NOTICE − Exceeding duty cycle
can damage unit and void warranty.
Overheating
0
15
A or V
OR
Reduce Duty Cycle
Minutes
duty1 4/95 − 204 075
30% Duty Cycle At 210 Amperes
60% Duty Cycle At 160 Amperes
3 Minutes Welding
7 Minutes Resting
4-3.
Volt-Ampere Curves
Volt-ampere curves show minimum
and maximum voltage and amper-
age output capabilities of unit.
Curves of other settings fall be-
tween curves shown.
va_curve1 4/95 − 192 436
