Wire Liner

[Steve W]

I tried to take the wire liner out of my Millermatic 172. I followed the instructions in the manuel. It says to disconnect the gun cable fron the welding machine and to take the tip, and difusser off the gun end. Then to unscrew the wire inlet guide on the roller end. According to the instructions it should just slide out of the roller end and you slide a new liner back in. I pulled pretty hard put would only get about a 1/4" and then it would just stop, like something was hanging it up. I finally just gave up and came here to ask for help. Can someone tell me how to get the liner out. The instructions are not clear enough for a dummy like me. Thanks , Steve

[Scott V]

Steve,you should try to figure out what gun is on your welder.Miller on at least the mm130xp had about three or four different guns.They might come apart a little different on each one.My favorite gun on those is the Hobart one.

One more point,How do you like that machine,and does your run .023 wire very well.I kind of like those way better than the new ones.They have the good Miller copper transformer.As far as I am tell Miller knows how to build machines in copper better than aluminum.(Miller 210 is copper as far as I know)

[Guest]

It sounds like you may have missed a set screw, pull it out from the machine end of the torch.

[Steve W]

Thanks Rock. I tried to pull it from that end put it would only go so far and stop so I just quit before I made things worse. I'll take a look at it tommorrow.

Scott it has the M-10 gun. It seems to make very nice welds using .023 wire on voltage tap num.1 and 2. Any metal under 16ga seems to burn thru but with patience it can weld 18 and 20 ga. .030 seems to work real good on 1, 2 and 3 but not 4. It will penetrate but not make a very pretty bead on 4. I've been trying .035, but it seems to have trouble pushing it thru the liner. I was going to try a .035 to .045 liner and see if that help. .035 does work good on tap 2 and 3.. I'am not crazy about the drive roller. It only has one v groove for .023 thru .035 and .035 seems to slips kinda bad at times. I do have a knurled roller but that one takes pretty deep bits into the wire. I need to check with Miller and see if I can get a bigger drive roller for it. Maybe thier is one for .035 thru .045 solid wire. Its a good powerful machine and when everything is set just right and going good it makes very nice welds and a pleasure to weld with. Its a very well made machine and durable. I'am not sure if I like the wire speed voltage control though. I could probally do without that.

[Scott V]

Steve,thanks for the info,I kind of thougt it would have a little trouble with real thin body work type metal.Thats the only reason I did not buy one when I was looking at it,and the 130 xp.I agree on the wire feed tracking,it can through you off when you just want to change the arc the way you want it.They should of put a on off switch on that feature.One for newbee welders,that would on.Then one for people that has welded for a while,that would be off.I would still take that machine instead of a new one,and just figure out the feed issues.I like them.