Lincoln Electric IM601-A Welder Operation, BREAK-IN Period, Typical Fuel Consumption, TIG Welding

B-7 OPERATION B-7

BREAK-IN PERIOD

The engine used to supply power for your welder is a heavy duty, industrial engine. It is designed and built for rugged use. It is very normal for any engine to use small quantities of oil until the break-in is accom- plished. Check the oil level twice a day during the break-in period (about 200 running hours).

IMPORTANT

IN ORDER TO ACCOMPLISH THIS BREAK-IN, THE UNIT SHOULD BE SUBJECTED TO HEAVY LOADS, WITHIN THE RATING OF THE MACHINE. AVOID LONG IDLE RUNNING PERIODS.

TYPICAL FUEL CONSUMPTION

Refer to Table B.2 for typical fuel consumption of the Commander 300’s Engine for various operating sce- narios.

Table B.2 Deutz F3L 912 Engine Fuel Consumption

	Deutz F3L 1011	Running Time for
	29 Hp	25 gallons
	@ 1800 RPM	(Hours)
Low Idle - No	.27 gallons/hour	92.5
Load 1400 RPM	(1.02 liters/hour)
High Idle - No	.48 gallons/hour	52
Load 1900 RPM	( 1.81 liters/hour)
DC CC Weld	1.34 gallons/hour	18.6
Output 300	( 5.07 liters/hour)
Amps @ 32 Volts
Auxiliary Power	1.32 gallons/hour	18.9
10,000 VA	(5.00 liters/hour)

WELDER OPERATION

STICK WELDING

The Commander 300 can be used with a broad range of DC stick electrodes.

The SELECTOR switch provides five overlapping slope controlled current ranges. The CONTROL adjusts the current from minimum to maximum within each range. Voltage is also controlled by the CON- TROL in the slope controlled setting. These slope con-

trolled settings are intended for “out-of-position” weld- ing, including pipe welding, where the operator would like to control the current level by changing the arc length.

PIPE WELDING

The Commander 300 is equipped with special circuitry to minimize pop-outs in the five slope modes at any open circuit voltage.

For a soft arc characteristic, set the "SELECTOR" Switch to the lowest setting that still provides the cur- rent you need and set the "CONTROL" near maximum. For example: to obtain 140 amps and a soft arc, set the " SELECTOR" Switch to the "150 MAX" position and then adjust the " CONTROL" for 140 amps.

When a forceful "digging" arc is required, use a higher setting and lower the open circuit voltage. For example: to obtain 140 amps and a forceful arc, set the “ SELEC- TOR” to the "230 MAX" position and then adjust the " CONTROL" to get 140 amps.

CONSTANT CURRENT (CC) WELDING

The most clockwise position of “30 to 375" the "SELECTOR" Switch is designed for horizontal welds with all types of electrodes especially low hydrogen. The " CONTROL" adjusts the full range of 30 to 375 amps. This setting provides a soft, constant current arc. If a more forceful arc is desired, then select the proper range from the slope controlled current ranges.

In the CC mode, sticking can be prevented by adjust- ing the “ARC CONTROL”. Turning this control clock- wise, increases the short circuit current, thus prevent- ing sticking. This is another way of increasing arc force.

TIG WELDING

The Commander 300 can be used in a wide variety of DC Tungsten Inert Gas (TIG) welding applications. When used with the K930-1 or -2 TIG module or K799 Hi-freq unit, ratings are limited to 375A at a 20% duty cycle, 300A at a 60% duty cycle and 250A at a 80% duty cycle.

COMMANDER 300