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Have a linde hda 300 welding machine when in the tig mode with remote control foot pedal the current control goes from 0-100 no in between control

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Your foot pedal should adjust the current, just like a sewing machine. If it is not working either the foot pedal is broken or your welder isn't compatible for the foot pedal. Some welders are only strike starting with no variable control amperage (usually your lower end models).

Posted on Sep 05, 2009

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When using foot pedal for tig welding,does foot control ,increase voltage,and control the argon valve


The flow of the gas will be initiated and terminated by the use of the pedal, but it does not change the flow rate, just on and off. You will adjust your desired flow rate at your flow meter or regulator. I prefer a flow meter as I find them to be more accurate and easier to use.

The foot pedal will initiate and terminate the arc when used on a HF start tig welder. It works like a gas pedal. For example, if you have your machine set to 100 amps, by pushing all the way down on your foot pedal you'll get 100 amps. Some guys will set their machine wide open and just control the amperage with the foot pedal. I don't do it like that, although there is nothing wrong with doing it that way. I like to have a bit more sensitive amperage control. I will set my machine a little higher than I think I need and feather the foot pedal from there. This allows me to start at a low amperage and also taper off a bit smoother at the end.

Jan 18, 2016 | Welding Tools

1 Answer

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When the display shows RMT it means that the torch trigger is depressed. If that is not the case then the trigger might be bad or shorted.
http://www.millerwelds.com/om/o245729c_mil.pdf

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1 Answer

Hi, starts to weld fine after a few seconds hi


It sounds like you need to change out your SCR chip on your motherboard; Miller makes one that i have installed on all our 350xl's, I don't have the number on hand but i can get it for you tomorrow.

Oct 20, 2009 | Welding Tools

2 Answers

Linde welding machine when welding in tig mode foot pedal will not control amphere output it goes from 0- 100 no in between


Check to see if the remote switch has been set, or if you have broken wire in your pedal lead. You might even want to open the pedal housing and take a look see. I've had more than my fair share that the contacts inside the pedal housing were worn or cooked. Good luck, hope it helps

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2 Answers

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The contact should have a gap .008 .

Mar 21, 2009 | Welding Tools

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If you have both a foot pedal and a thumb control and neither is working, the problem could be in the 14 pin remote connector on the welder. The pins inside the connector can get worn out and/or broken with regular changing of the remote.

You could also have a bad PC2 board, the front panel control comes after the interface to the remote control.

Regards,
Carl

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1 Answer

Bad tig weld job


Wow you have a lot of variables here. Let's go over some of them.1.AC current 2.100%argon shield gas 3.Check your Tungsten, it must be the recommended 1or 2% and the right size, clean and the tip rounded by meting 4. High freq. turned to continous-not just "START"
5. CLEAN,CLEAN,CLEAN your Alum. with a S.S. brush that has touched NOTHING else in in it's life!
Start here and GOOD luck

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