Removing an Imhof Canon Pinion

Discussion in 'Clock Repair' started by Stevetheraff, Jul 26, 2012.

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  1. Stevetheraff

    Stevetheraff Registered User

    Sep 4, 2008
    48
    2
    8
    self employed clock repairer/restorer
    Manchester, England
    Has anyone actually removed a canon pinion from an Imhof calibre 544? if so how is it done.
    BTW I am very familiar with removing canon pinions from most clocks and watches, however I really dont want to resort to brute force with this one.
    Thanks
     
  2. Stevetheraff

    Stevetheraff Registered User

    Sep 4, 2008
    48
    2
    8
    self employed clock repairer/restorer
    Manchester, England
    Here's the answer after considerable study and care.

    The brass tube that carries the minute hand is friction (very) tight on the centre arbor, under the tube is fitted the minute nut or wheel. On no account should the minute nut be levered up as it will break.

    Take a short piece of 1.0mm diameter pivot steel and support the movement on a staking block that will allow the centre wheel to fall through, push the pivot steel into the tube and tap firmly with a watchmakers hammer and the centre wheel will eventually seperate from the tube.

    The actual friction achieved by the centre arbor passing through the canon pinion can then be tightened in the usual way.
     

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