Hobart Welding Products 140 manual Duty Cycle And Overheating, Output Duty Cycle %, Warranty

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4-2. Duty Cycle And Overheating
										Duty Cycle is percentage of 10
										minutes 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
	200									unit to cool. Reduce amperage or
										duty cycle before welding.
	140									Y Exceeding duty cycle can
										damage unit or gun and void
Amperes
	100									warranty.
	80
Output	60
	40
	20
	10	2	4	6	8	10		40	60	80 100
	1						20
				Duty Cycle %
					20% duty cycle at 90 amps
			2 Minutes Welding				8 Minutes Resting
	Overheating
						0				A or V
							15			OR
						Minutes			Reduce Duty Cycle
										duty1 4/95 − 217 623-A

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