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Removing CD Al platter from steel motor spindle

Discussion in 'Electronic Repair' started by n cook, Sep 18, 2004.

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  1. n cook

    n cook Guest

    Its about 5 years since the last time i did this , has a better method
    emerged.
    First measure the position relative to deck with depth guage.
    Two sheets of paper meeting under the spinner to protect deck from
    direct heat.
    A pair of wooden clothes peg halves pushed in the gap and a couple
    more such wedges to hand.
    Heat with a hot air gun , remove heat ,and alternate forced wedging in
    the gap to release.

    Technics player with CD not spinning when disk previously stops say
    at East or W position but ok if stopped in S or N position.
    Confirmed by motor ohms at these positions either about
    2 ohms or 12 ohms. So a motor problem

    electronic hints and repair briefs , schematics/manuals list on
    http://homepages.tcp.co.uk/~diverse
     
  2. N Cook

    N Cook Guest

    I think this time I will try grinding down the forks of a cheap cruddy small
    hub puller.
    With lips just enough to get in the 0.06 inch gap , heat up
    and pull off. to avoid pulling the armature out of position and the 'brush'
    springs with it
     
  3. N Cook

    N Cook Guest

    I spent an hour making (bodging )a miniature hub-puller from scratch.
    For the archives details On the tips files , from end of Sept, on
    http://homepages.tcp.co.uk/~diverse
    Works very well, no distortions
     
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