Thread: tig welders
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Old 7th February 2012, 06:29 PM
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Davey Davey is offline
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Quote:
Originally Posted by K4KEV View Post
I got one of these too and it has been grafting since August last year,
I can tell you what is wrong with the foot pedal and it is a right bugger to dismantle......I discovered my problem early on when the pedal was doing the opposite to what I was telling it which sounds the same as what you are describing.
Inside you will find two potentiometers or "pots" the one that gave me probs was the sliding one that attaches to the pedal....when I put a test meter on
it was registering 100K then down to 0 at the middle and back up to 100k. This made me think straight away that the manufacturers had used a simple pot from a right/left speaker control. As it happened I had a 100k linear pot lying around from a volume control which measured 0-100k on my meter, so it was a simple replacement and when all put back together it worked 10 times better with a much greater range of control.


Cheers for that Kev, I did strip the pedal and as you say its a bugger but didn't getthat far with testing it. I've got a quiet day tomorrow so may just have another crack at it.

D.
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