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Sticky Wire Feed
mistergrumpy - 4/12/06 at 07:07 PM

Can any one suggest owt for this? The lead assembly between the trigger and box on my MIG has always been coiled and unless I keep this bend radius in it when I'm welding, it just won't feed properly and looks like blackberry flavoured bird droppings! It just seems to be worse lately. Is there a silicon spray or summat I can do to grease the liner?


hillbillyracer - 4/12/06 at 07:18 PM

Mabye just get a new liner for it, unless it's something oddball any decent welding supplies place will have one for a few quid.


I love speed :-P - 4/12/06 at 07:22 PM

What welder is it? becuase i had an SIP which had the same problem, and turned out to be the feed motor

Phil M

[Edited on 4/12/2006 by I love speed :-P]


Minicooper - 4/12/06 at 07:26 PM

Has the wire become rusty at all? is the wire feed adjusted properly? trigger the wire through your thumb and finger, adjust it until you can just about stop it and it starts to slip on the clamp wheels, if it's to tight it will buckle and jam

Cheers
David


mistergrumpy - 4/12/06 at 08:42 PM

It works great when I keep the natural curve in it its just when its a little against the curve so I don't think its the motor. The wire ain't rusty at all. Maybe a new liner then as said.


Peteff - 4/12/06 at 09:07 PM

Try a Teflon liner instead of the coiled wire one. What kind of mig is it? DIY migs don't have the best record for wire feeding, my SIP was feeble.


Minicooper - 4/12/06 at 09:08 PM

I used to squirt a little WD40 down my liner now and again, don't go mad as it's flammable

A new liner is cheap enough though worth a try

Have you checked the wire feed roller pressure, if it's not set right it will snag and slip or buckle the wire internally

Cheers
David


mistergrumpy - 4/12/06 at 09:13 PM

The liner in already is teflon not wire, its just taken on a coiled shape because of the way the thing was stored when I bought it. Wire pressure is fine as all works well when no undue pressure is against the natural coil. I'll try a quick squirt of oil I think until the weekend when I'll try and get a new liner.


Minicooper - 4/12/06 at 09:38 PM

Trigger the wire through your finger and thumb if you can easily stop the wire, then the wire feed pressure is to low.

This may account for you being able to weld fine when the torch wire is coiled up in it's set state, and not welding properly when you straighten it because of the increase in friction

Cheers
David


Chippy - 4/12/06 at 11:15 PM

I have always used a drop of parafin squirted down the liner, works every time. hth Ray


NS Dev - 5/12/06 at 02:23 PM

bit of wd40 on a small piece of scotchbrite pad in a small bulldog clip round the wire where it goes into the liner.

won't get round crap diy quality torches and liners though


macnab - 7/12/06 at 12:50 PM

I have this problem all the time with my SIP, never thought of putting oil or parifin on the wire I'll try that tonight. Cheers!