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  1. #31
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    Jun 2008
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    It took me a while to find it, but this is the video I was refering to.
    https://www.youtube.com/watch?v=VHjGc_qjNcE
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  3. #32
    Join Date
    Jul 2010
    Location
    Melbourne
    Posts
    7,775

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    Thanks Matthew, Never come across armature chucks before.

    Just to prove I over think my projects as well. I put the bushes in oil, microwaved* it to heat it up a little then ran it though a few cycles in my vacuum chamber. Seems to have worked lol

    Stuart

    *in hindsight I'm not sure that was such a good idea. Still it heated up so I guess it worked.
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  4. #33
    Join Date
    Sep 2012
    Location
    Yorkshire UK
    Posts
    733

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    Hi Stuart,

    Sorry I completly missed this post.

    Quote Originally Posted by Stustoys View Post
    I have a choice of two
    Loma 32 (hydraulic oil used in my lathe headstock)
    DTE Heavy (used in the jig grinder gearboxes)
    For this use does it really matter?

    Stuart
    I generally use whatever I have to hand, 20 - 50 motor oil, the cheap type without any additives, usually.
    Best Regards:
    BaronJ.

  5. #34
    Join Date
    Jul 2010
    Location
    Melbourne
    Posts
    7,775

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    Well I used the 32, fingers crossed.
    Made a puller for the large end.
    Pulled the bushes and replaced(I was right the, small bush did grip the needlessly accurate puller, but lots of little taps got it out without moving the bush).
    Put it back together. Pretty happy, is running better than it used to(it was always slower than the other motor but seems about the same now)
    I'll just have to keep an eye on the brushes as they dont seem to have 100% contact. Maybe they just need some running in?

    Thanks guys

    Stuart
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  6. #35
    Join Date
    Jun 2008
    Location
    Victoria, Australia
    Age
    74
    Posts
    6,132

    Default

    Hi Stuart,

    Always good to see a project finished.. did you run it with lots of end float to find the magnetic center?

    Ray

  7. #36
    Join Date
    Jul 2010
    Location
    Melbourne
    Posts
    7,775

    Default

    Hi Ray,
    Yes and no . I put it back together as it was and tested it. It starts and stops with the brushes off the end of the commutator, when running it pulls the commutator back. I should have made a spacer......it seems I forget.......... I'll get onto it.

    Stuart

  8. #37
    Join Date
    Jun 2008
    Location
    Victoria, Australia
    Age
    74
    Posts
    6,132

    Default

    Sorry, didn't mean to make extra work for you...

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