Craftsman 117.20571 Operator's Manual | Page 9

Craftsman Welding System Operator's Manual - 117.20571.
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OM-194 199 Page 6

6 Minutes Welding

4 Minutes Resting

2-3.

Welding Power Source Duty Cycle And Overheating

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.

Exceeding duty cycle can

damage unit and void
warranty.

Overheating

0

15

A or V

OR

Reduce Duty Cycle

Minutes

duty1 4/95 – SB-181 009

60% Duty Cycle At 150 Amperes

2-4.

Welding Gun Duty Cycle And Overheating

CAUTION

WELDING LONGER THAN RATED DUTY CYCLE can damage gun and void warranty.

• Do not weld at rated load longer than shown below.

• Using gasless flux cored wire reduces gun duty cycle.

warn7.1 8/93

Duty Cycle is percentage of 10
minutes that gun can weld at
rated load without overheating.

Continuous Welding

SB1.1 8/93

0

10

Minutes

Definition

.023 To .045 in (0.6 To 1.1 mm)

Hard Or Flux Cored Wires

100% Duty Cycle At 150 Amperes

Using CO2

100% Duty Cycle At 120 Amperes

Using Mixed Gases

.023 To .045 in (0.6 To 1.1 mm) Hard Or Flux Cored Wires

60% Duty Cycle At 200 Amperes

Using CO2

60% Duty Cycle At 150 Amperes

Using Mixed Gases

6 Minutes Welding

4 Minutes Resting

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