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REAR CONTROL PANEL
1.Power Switch: Controls the input power to the machine. Make sure the machine is properly con- nected to the input supply before turning the machine on.(See Figure B.1)
2.Fan: The cooling fan will turn ON when the machine is turned ON and it will continue to run whenever the output of the machine is ON. If the output of the machine is OFF for more than five min- utes, the fan will turn OFF. This reduces the amount of dirt that is deposited inside the machine and reduces power consumption.(See Figure B.1)
Refer to the Output LED section below for more information about conditions when the output of the machine is ON. (See Figure B.1)
CONTROLS AND SETTINGS (See Figure B.2)
3.Mode Switch: This switch changes the welding modes of the machine. The
When the mode switch is in the Lift TIG position, the stick welding functions are disabled and the machine is ready for Lift TIG welding. Lift TIG is a method of starting a TIG weld by first pressing the TIG torch electrode on the work piece in order to create a low current short circuit. Then, the electrode is lifted from the work piece to start the TIG arc.
4.Arc Control: The Arc Control simultaneously adjust the level at Hot Start and Arc Force. Increasing the Arc Control setting increases both Hot Start and Arc Force.
•Hot Start: This is a temporary increase in the output current during the start of the stick welding process. This helps ignite the arc quickly and reliably.
•Arc Force: This is a temporary increase in the out- put current during normal stick welding. This tempo- rary increase in output current is used to clear inter- mittent shorts between the electrode and the weld puddle that occur during normal stick welding.
5.Power LED: This indicator will blink on and off when the machine is first turned on. After approxi- mately 2 seconds it will stop blinking and remain on to signal that the machine is ready. The indicator will also blink during over current conditions when operating on 115V input.
6.Thermal LED: This indicator will turn on when the machine is overheated and the output has been dis- abled. This normally occurs when the duty cycle of the machine has been exceeded. Leave the machine on to allow the internal components to cool. When the indicator turns off, normal operation is again possible.
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FIGURE B.1
1. Power Switch
2. Fan
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