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Miller M25 15' gun -- new liner too short

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  • DougM
    replied
    Originally posted by tackit View Post

    Doug, I thinking for a test, you may be able to cut off a portion of the old liner and solder it to the new one, Yes?
    Too much hassle. Just stretch it a few mm's or so.
    I clamped the nut-end to the edge of a looooong table (24') I had set up for repacking parachutes (and other projects). Sandwiched it between a 2' 2x4 and the table's surface with three wood clamps. Then gripped the other end with a big hand-screw wood clamp and slid that along the table to get the liner to stretch. It took maybe four attempts with a force of perhaps 100 lbs to get the length I was shooting for.... approximately 0.25" longer than the original liner. Freaking strong-ass spring! Perhaps it could have been stretched to 0.5" longer so that it might give a bit more seating force against the inner chamfer in the tip adapter. But whatever... now it works as it should with zero problems. I'll let that dog eat anything he wants!

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  • DougM
    replied
    Originally posted by ryanjones2150 View Post
    Well that makes far more sense. I figured you had a peg leg and an eye patch, could see squat and kept stomping your pitchfork into your lead and crushing it. 20-30 liners is 10 lifetimes for most people. Unless you happen to have a peg leg and an eye patch or course.
    Argh! Me plund'rs yer lin'rs wit me sharp'n'd steel peg leg and me receive's large amounts of booty f'r yer trouble!
    Me's gotsa kings' ransum of lin'rs in me locker just wait'n f'r ya's!
    Argh argh argh arrrgh!

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  • ryanjones2150
    replied
    Well that makes far more sense. I figured you had a peg leg and an eye patch, could see squat and kept stomping your pitchfork into your lead and crushing it. 20-30 liners is 10 lifetimes for most people. Unless you happen to have a peg leg and an eye patch or course.

    Leave a comment:


  • tackit
    replied
    Originally posted by DougM View Post

    Well, when the machine starts fussing at you and it's a Sunday and you want to get further along or finish a job, or the LWS that's an hour or so away wants $55 (!!) for a liner, sometimes doing some 'creative' maintenance with what you have on hand can mean the difference between getting 'er done, or not. You've been there multiple times I'm bettin'. In my case, I believed I had acted way ahead of the curve by ordering (online) all the big consumables, only to find out some time later that some schmuck, or some automated machine, cut the liner too short. What'chya gonna do?!
    Doug, I thinking for a test, you may be able to cut off a portion of the old liner and solder it to the new one, Yes?

    Leave a comment:


  • 1997CST
    replied
    Originally posted by ryanjones2150 View Post
    20-30 liners a year?!

    Stop walking on your lead, brother!
    I'm a technician that repairs welding machines. That's what my handle is 1997CST. I'm a Certified Service Tech by Miller since 1997.

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  • tackit
    replied
    Originally posted by DougM View Post
    Well Bob, that begs the question of where and what brand of wire of that type should we purchase to ensure good welding characteristics?! I've heard this before (LE L-56 being junk), but didn't think too much about it since I've never had many problems with it as long as my machine was working well.
    Thanks
    Doug this is what I have always used in all three of my MM mig machines and I have never experienced a problem with it. I'
    ve used it for so long I don't think to order a different brand.

    https://www.lincolnelectric.com/en-u...ncolnElectric)

    Leave a comment:


  • ryanjones2150
    replied
    20-30 liners a year?!

    Stop walking on your lead, brother!

    Leave a comment:


  • 1997CST
    replied
    I use 20-30 liners a year. I had a batch of 15' liners that were too short. Luckily I can use them when I get 10' guns.
    I switched to Radnor and they are at least 18'. No this is not a plug for Radnor, just saying.

    Leave a comment:


  • aametalmaster
    replied
    Originally posted by DougM View Post
    Well Bob, that begs the question of where and what brand of wire of that type should we purchase to ensure good welding characteristics?! I've heard this before (LE L-56 being junk), but didn't think too much about it since I've never had many problems with it as long as my machine was working well.
    Thanks
    I can't answer that. I actually like the cheap junk. I have worked for so many cheap bastarts over the last 40 years i got good with the junk...Bob

    Leave a comment:


  • ryanjones2150
    replied
    I was talking about the denatured alcohol flushing of the liner job.

    And $55 is highway robbery!

    I don’t recall what I paid for my liners, but I keep a spare for my machines in the shop for the Sunday afternoon *#%^! moments.

    Smart thinking to stretch yours a little. And if it’s working, let the dog eat, I say.

    Leave a comment:


  • DougM
    replied
    Originally posted by ryanjones2150 View Post
    Looks like a lot of work for a $25 liner.
    Well, when the machine starts fussing at you and it's a Sunday and you want to get further along or finish a job, or the LWS that's an hour or so away wants $55 (!!) for a liner, sometimes doing some 'creative' maintenance with what you have on hand can mean the difference between getting 'er done, or not. You've been there multiple times I'm bettin'. In my case, I believed I had acted way ahead of the curve by ordering (online) all the big consumables, only to find out some time later that some schmuck, or some automated machine, cut the liner too short. What'chya gonna do?!
    Last edited by DougM; 09-11-2019, 06:57 AM.

    Leave a comment:


  • DougM
    replied
    Originally posted by aametalmaster View Post
    Some L-56 wire is junk off shore stuff. Not ALL of it is USA made. Just what needs bought for US spec jobs....Bob
    Well Bob, that begs the question of where and what brand of wire of that type should we purchase to ensure good welding characteristics?! I've heard this before (LE L-56 being junk), but didn't think too much about it since I've never had many problems with it as long as my machine was working well.
    Thanks

    Leave a comment:


  • aametalmaster
    replied
    Originally posted by DougM View Post
    Tackit....
    with L-56 wire
    -doug
    Some L-56 wire is junk off shore stuff. Not ALL of it is USA made. Just what needs bought for US spec jobs....Bob

    Leave a comment:


  • tackit
    replied
    Originally posted by DougM View Post
    Tackit....
    Did Miller indicate what range of serial numbers for either wire removal? I've been having some weird, snappy, popping starts lately as well, especially on 10 ga and under (cold rolled mild) with L-56 wire of 0.035" and 0.025", even after my aforementioned maintenance though a bit less now.
    Thanks
    -doug
    Doug, unfortunately, Miller didn't say what models had the 8 and 79 wires, I just popped off the machines cover and looked for contactor and saw the # 8 wire and took it off. Keep in mind your capacitors could have lost some of their capacitance over time too, that's what cruiser suspected my problem was, , but I called Miller to see what they had to say, that's when they told me to take the # 8 or #79 wire off the contactor.

    My 251 runs better then it ever has since removing the #8 wire, it seems to have a hotter, wider and smoother arc and sweet spot, and adjustments are more critical/noticible throughout the machines heat range. I could be full of BS but other members of the family who have welded with it say the same thing. One of the SILs friends came over to see him in the shop and asked if I would be interested in selling it, he told his friend that machine ain't ever leaving this property, before my Challenger 172 had the sweetest arc.

    Leave a comment:


  • ryanjones2150
    replied
    Looks like a lot of work for a $25 liner.

    Leave a comment:

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