Replacing wire-feed welder liner?

[olds70supreme]

Hello,

I have a wire feed welder (cheap harbor freight) and at some point while moving things in my garage I inadvertently set something heavy on the feed line (the line where the wire and gas run from the welder itself to the trigger/gun assembly). Doing so I kinked the hose/liner that the wire runs through to the point that it is affecting operation. I had a millwright look at it an he said the liner needed to be changed. How does one do this? Does the entire assembly require changing (gas line, wire line, outer covering) or can wire hose be replaced separately? Is this a part that is specific to the welder or is it something that can be bought off the bulk reel at the hardware store?

Thanks.

 

[wendell]

I suggest calling the store you bought it from and follow their instructions.

 

[lastgoodusername]

my experience, miller and hobart. liner will replace from the machine side. simple process really. just have to get the correct size liner for the wire you use and the length.good luck on the parts sourcing thru HF. johnny

 

[jeepnut24]

Not sure how HF will work, but I can get liners for my lincoln from the welding shop. Do some google searches. Someone may have done some work making another MFGs liner work. Might get lucky and have the same sizes.

 

[olds70supreme]

So I'm hearing this is typically done by feeding the wire liner through the main "hose" towards the gun?

 

[speed bump]

Last one I did was a simple disconnect the whip, unscrew the liner at both ends, pull it out and swap in the new liner kind of deal.

 

[JayL]

How often do the liners need to be changed in normal wear and tear usage?

Millermatic 180

 

[arkangel06]

How often do the liners need to be changed in normal wear and tear usage?

Millermatic 180

Ive used the same millermatic 250 (not that it matters) and havn't changed the liner yet...

You will know when you need to change the liner though just by the crappy feeding of wire theres no cycle time like oil in a car just wait till it wears out.

Hope this helped