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  1. #1
    Join Date
    Nov 2016
    Location
    Australia
    Posts
    1

    Default Transmig 195 wirefeed drive problems

    Hi All,

    I am repairing a Transmig 195.
    The rectifier is new, and wiring checked.

    My problem is the wire feed starts well but then intermittently stops every 5 or so seconds for a split second.
    I have released the wire and run the wire feeder, so the gun and wire are not the issue.
    I have a video but too large to post here.

    Any ideas what the cause is?

  2. #2
    Join Date
    Oct 2011
    Location
    Norwood-ish, Adelaide
    Age
    59
    Posts
    6,540

    Default

    So is the wire feed roller stopping (drive problem) or is it continuing on (possibly a flat spot on your roller(s))
    First thing I would be checking is that there is not an intermittent joint to the wire feed motor. I don't know how these work but if there is a gearbox to get the motor speed down, is there possibly a gear with a tooth missing (does it do the same thing if the rather than using the welder motor you use a battery drill?)

    Michael

  3. #3
    Join Date
    Nov 2007
    Location
    Near Rockhampton
    Posts
    270

    Default

    Is the power to the gun stopping at the same time as the feed stops.

    If so do you have the on/off timers (stitch and spot weld controls) set to off.

  4. #4
    Join Date
    Jan 2004
    Location
    Mackay North Qld
    Posts
    6,446

    Default

    Hi,
    Michael makes some good points about connections. A squirt of WD-40, CRC or similar in the connection sockets cannot hurt.

    My first thought is to check the the spot weld timing control on the panel.Is it completely switched off? There is an audible click when the switch is rotated to its limit counter counter wise. Many a welder has been caught by that thinking the control is switched off just by visual inspection only.
    Failing that little trick, my response would be to check the wire.How old is it and what condition is the surface of the wire in? If the wire as been sitting for any length of time, it may be suffering from surface corrosion.

    Even metallic dust( grinding dust) from the workshop that has settled down on the wire sitting unused for a time may affect this. Check under the drive rollers for any dust or rust flakes -thats a giveway.That will cause slippage.

    Some times one can strip a top layer of wire from the spool and get back to the good clean wire.

    Don't be afraid to blow out the liner, Then soak it in Kerosine, then blow it out again. Then a splash in methylated spirits and blow it out gain . I did this at the start of every shift and never had liner trouble on my machines.

    In Mackay, a spool left sitting in the machine can be affected after a month or so,if you are coastal ,store the spool in a garbage bag with some anti moisture salts if you are not going to use it every day.

    Hope it helps

    Grahame

  5. #5
    Join Date
    Jan 2011
    Location
    Far West Wimmera
    Age
    63
    Posts
    4,049

    Default

    I have had 35mm cross section work and earth cables (arc) for about 25 years. They came with my first welder. The earth clamp is a really strong 400A spring jobbie. I have been having increasing difficulty working it so finally decided to change it for a sookie one. When I finally got the cable off the clamp I found that every contact surface was filthy dirty. I gave the cable eyelet a good clean before fitting to the new clamp.

    It pays to undo these and check them.

    Dean

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