My wire feed speed control has stopped working, wire is being pushed out at seemingly the highest speed, Rotating the rheostat makes no difference.
This happened after wire had clogged up just after the feed roller. I pulled it all out and re-fed the wire past the drive roller into the spring type tubing which carries the wire all the way up to the hand piece. Problem was the spring type tubing was not visible (must have been pushed out of sight by the clogging) and so the wire actually was not fed correctly and missed its tube, motorised feed kept pushing wire which then entered electronic board area via circular inch-size electrical wiring hole in body precicely in that vicinity! Pressing the trigger and waiting patiently for wire never to emerge, the feed rate suddenly altered to full speed, which makes me think the welding wire had caused some sort of short circuit as it snaked its way everywhere except up the tube it was meant for!
It seems a fairly simple speed control circuit board, any ideas what I should check. Should the rheostat when turned produce a smooth rise/fall to the needle on my multimetre? (rotating in one direction produces a rise, a fall and a rise again!)
Maybe someone knows how I can obtain a replacement new/2nd hand electronic circuit board with number E1292,02 (can send digital photo)
All help much appreciated.
John
Cyprus
This happened after wire had clogged up just after the feed roller. I pulled it all out and re-fed the wire past the drive roller into the spring type tubing which carries the wire all the way up to the hand piece. Problem was the spring type tubing was not visible (must have been pushed out of sight by the clogging) and so the wire actually was not fed correctly and missed its tube, motorised feed kept pushing wire which then entered electronic board area via circular inch-size electrical wiring hole in body precicely in that vicinity! Pressing the trigger and waiting patiently for wire never to emerge, the feed rate suddenly altered to full speed, which makes me think the welding wire had caused some sort of short circuit as it snaked its way everywhere except up the tube it was meant for!
It seems a fairly simple speed control circuit board, any ideas what I should check. Should the rheostat when turned produce a smooth rise/fall to the needle on my multimetre? (rotating in one direction produces a rise, a fall and a rise again!)
Maybe someone knows how I can obtain a replacement new/2nd hand electronic circuit board with number E1292,02 (can send digital photo)
All help much appreciated.
John
Cyprus
