TIG pedal wiring

[striker]

Hi, I have a Sherman 206p Tig. I have just upgraded the torch, I have a couple of 5 pin plugs to suit, kindly given to me by RichieW.
I've used in plug on the new CK torch.
So, I ordered a 10k pedal from China. It came yesterday and it's rubbish!
However, it's a start and I'm going to make it mechanically good, I'll machine some new aluminium pedestals for pivot points etc...it currently has a dial potentiometer which I would like to delete and just have the slider one operated by the pedal. I have a diagram from RichieW for the pinouts. Can someone take a look and tell me where to connect the 3 wires direct to the linear pot bypassing the rotary pot.

Thanks.

 

[Kram]

Blue and yellow are the ends, with green being the slider.
So move blue to black and yellow to red, kn the linear.
Id just leave it there to be honest.

 

[striker]

Blue and yellow are the ends, with green being the slider.
So move blue to black and yellow to red, kn the linear.
Id just leave it there to be honest.

Thanks, are these linear pots reliable? I've checked out replacements, they're cheap enough. Most pedals seem to have rotary pots with a pulley and spring arrangement.

 

[Kram]

Depends entirely on construction. Ive had a fair number of rotary pots fail on their first use. A decent brand replacement should not be expensive but avoid cheapyies on ebay.

Of the chinese ones, I have found the wire wound type to be good and reliable.

 

[MoreWellie]

The way it is wired at the moment makes it look like the rotary is being used as a trim pot to set the maximum range on the slider so I wouldn't change it

 

[striker]

The way it is wired at the moment makes it look like the rotary is being used as a trim pot to set the maximum range on the slider so I wouldn't change it

Oh, I've just chopped it out and resoldered direct to the slider pot. Hope it's ok!!!

 

[Kram]

The way it is wired at the moment makes it look like the rotary is being used as a trim pot to set the maximum range on the slider so I wouldn't change it

True, it depends how its physically mounted, looks like it sticks out. If your always accidently changing the rotary position it could get annoying very fast.

 

[Jack Ryan]

The way it is wired at the moment makes it look like the rotary is being used as a trim pot to set the maximum range on the slider so I wouldn't change it

That's what those pots are generally for but I set the max current at the machine. If you can do that, you don't need a pot on the pedal.

Jack

Sorry, I forget where the image came from.

 

[500e]

Dislike sliders usually cheap/poor quantity

 

[striker]

Dislike sliders usually cheap/poor quantity

Yeah, it looks poor. I will run with it and see what it's like. If/when it fails I will look into a better quality slider or converting it to rotary.

 

[500e]

Rotary is. The way to go

 

[striker]

I've just ordered the Sherman pedal. I found it on offer. I was dreading soldering the 5 pins inside the tiny plug anyway, my eyes aren't what they used to be!
At least I can just plug it in and it will work, hopefully!!!!
Should've done this in the first place.