- Thread starter vanpegg
- Start date
- Messages
- 17,594
You'd have even more problems than you're getting now. The main one being that you wouldn't be able to get the wire to the torch in the first place.
What welder? what wire? is the wire in good condition? Have you changed the contact tip? When you say it's a new one do you mean new welder or wire liner?
*URGENT REPLY NEEDED*
What welder? what wire? is the wire in good condition? Have you changed the contact tip? When you say it's a new one do you mean new welder or wire liner?
*URGENT REPLY NEEDED*
vanpegg
Dubster
- Messages
- 8
Thanks for gettin back so quickly...
The welder is a Powershack 190, and I've just changed from 0.8mm to 0.9mm Gasless -or trying to... (Bought 1mm tips to go with obviously!)
I meant the liner is new, after the last one clogged completely. With the new liner & 0.8mm wire everything was fine. Today I tried changing over to gasless but it just wont get thru after feeding it in for so long.
I was jst so frustrated earlier, I nearly took the liner out altogether -but thankfully the missus thought I should try looking it up 1st!
Tho now I think the best course of action (after calming down!) is to get a metal liner & postpone tomorrows MOT.
What do you reckon?
Thanks v.much
The welder is a Powershack 190, and I've just changed from 0.8mm to 0.9mm Gasless -or trying to... (Bought 1mm tips to go with obviously!)
I meant the liner is new, after the last one clogged completely. With the new liner & 0.8mm wire everything was fine. Today I tried changing over to gasless but it just wont get thru after feeding it in for so long.
I was jst so frustrated earlier, I nearly took the liner out altogether -but thankfully the missus thought I should try looking it up 1st!
Tho now I think the best course of action (after calming down!) is to get a metal liner & postpone tomorrows MOT.
What do you reckon?
Thanks v.much
- Messages
- 17,594
No probs, you did say you needed an urgent reply.
What type of liner did you fit and how far does the wire get through the liner before it stops? If it gets as far as the torch, it may be as simple as a partial blockage in the torch assembly or swan-neck in which case dismantle the torch as far as you can and check for anything obvious. If it goes through the torch but stops just at the tip, try removing the contact tip, getting the wire through and screwing the tip back in.
What type of liner did you fit and how far does the wire get through the liner before it stops? If it gets as far as the torch, it may be as simple as a partial blockage in the torch assembly or swan-neck in which case dismantle the torch as far as you can and check for anything obvious. If it goes through the torch but stops just at the tip, try removing the contact tip, getting the wire through and screwing the tip back in.
vanpegg
Dubster
- Messages
- 8
It's only a plastic liner, but there's plenty of room for the 0.9mm wire. The wire gets to a good few inches before the swan-neck (I checked with a length that bird-nested) & there was nothing obvious after dismantling the torch. The MOT has been cancelled anyway now,
so I think I'll just admit defeat & get on to machinemart!
Thanks tho, -u kno what it's like in the heat of the moment
so I think I'll just admit defeat & get on to machinemart!
Thanks tho, -u kno what it's like in the heat of the moment
johnny7
Member
- Messages
- 386
hi
did you try some emery cloth on the end of the wire, if it's been cut with blunt wire cutters it will make the end of the wire chisel shaped, this could be digging in to the soft plastic liner wall and stopping it's progress...
i was once fitting some wheel arches ot a cavalier for a mate and i had the same proplem, after a few goes (and failed attempts!), i had a look at everything and the end of the wire was hitting the same place on the liner and actually cut a trough and was trying to go into it every time, i cut about an inch off the liner, sanded the end of the wire everytime i fitted a new spool and it's been ok since
(it's still got the same liner in about 20 years later)
john
did you try some emery cloth on the end of the wire, if it's been cut with blunt wire cutters it will make the end of the wire chisel shaped, this could be digging in to the soft plastic liner wall and stopping it's progress...
i was once fitting some wheel arches ot a cavalier for a mate and i had the same proplem, after a few goes (and failed attempts!), i had a look at everything and the end of the wire was hitting the same place on the liner and actually cut a trough and was trying to go into it every time, i cut about an inch off the liner, sanded the end of the wire everytime i fitted a new spool and it's been ok since
(it's still got the same liner in about 20 years later
)john
vanpegg
Dubster
- Messages
- 8
Hmm...
Now that you mention it... I did cut the wire with some old (& quite blunt) side-cutter pliers.
Doh. I daren't go & look! I've ordered a metal liner now, but knowing machine mart that wont be here til sometime nxt wk
Thanks mate, I'll have a look in the morning. Hopefully get some wrk done too.
I'm surprised you've had a liner for so long! I'm on my 2nd in under a year...
Now that you mention it... I did cut the wire with some old (& quite blunt) side-cutter pliers.
Doh. I daren't go & look! I've ordered a metal liner now, but knowing machine mart that wont be here til sometime nxt wk
Thanks mate, I'll have a look in the morning. Hopefully get some wrk done too.
I'm surprised you've had a liner for so long! I'm on my 2nd in under a year...
malcolm
& Clementine the Cat
- Messages
- 9,801
- Location
- Bedford UK
You should like the steel liner when it comes. Much less resistance than the plastic liners so less wire feed hassles.
I'd no idea they were available when I was running my Clarke - ended up with quite a short torch lead with cutting damaged bits out after doing exactly the same thing.
I'd no idea they were available when I was running my Clarke - ended up with quite a short torch lead with cutting damaged bits out after doing exactly the same thing.
vanpegg
Dubster
- Messages
- 8
One problem sorted, now faced with another!
Replaced the liner with the metal one & the feed was nice & smooth as expected...
The trouble I'm facing now is that (regardless of power or wire speed setting) as soon as I pull the trigger, the wire just burns & fizzes right back to the tip. Why??!
(Welder is Powershack 190 & I think the wire is Clarke (it came from MachineMart & everything else they do seems to be...)
Replaced the liner with the metal one & the feed was nice & smooth as expected...
The trouble I'm facing now is that (regardless of power or wire speed setting) as soon as I pull the trigger, the wire just burns & fizzes right back to the tip. Why??!
(Welder is Powershack 190 & I think the wire is Clarke (it came from MachineMart & everything else they do seems to be...)
shenion
Tool Pack Rat
- Messages
- 7,586
- Location
- Stone Mountain, GA USA
Swapping the polarity has 2 effects:
1. The heat transfer is 2/3 to the + side and 1/3 to negative. Changing the polarity to EN will put more heat in the metal and less in the wire. So it will have greater penetration and less wire burnback.
2. The polarity effects the formation of droplets on the end of the wire. The combination of the charge of the drop, polarity and magnetic field control how the drop is formed and transfers to the work.
I think it also has to do with the gas. With gas MIG, the gas is charged at the tip. With gasless it is created at the work and travels in the opposite direction.
I tried reversing polarity to try to get better penetration on my little Clarke. Ended up spattering all over.
1. The heat transfer is 2/3 to the + side and 1/3 to negative. Changing the polarity to EN will put more heat in the metal and less in the wire. So it will have greater penetration and less wire burnback.
2. The polarity effects the formation of droplets on the end of the wire. The combination of the charge of the drop, polarity and magnetic field control how the drop is formed and transfers to the work.
I think it also has to do with the gas. With gas MIG, the gas is charged at the tip. With gasless it is created at the work and travels in the opposite direction.
I tried reversing polarity to try to get better penetration on my little Clarke. Ended up spattering all over.
vanpegg
Dubster
- Messages
- 8
