Power loss on ST #1 Office Calendar Clock

Discussion in 'Clock Repair' started by James VanOrsdel, Jul 9, 2013.

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  1. James VanOrsdel

    James VanOrsdel Registered User

    Jul 28, 2011
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    I have a power loss occuring on a Seth Thomas #1 Office Calendar Clock that is giving me a fit! The way the clock movement is mounted makes it difficult to isolate the power loss. Perhaps someone else has experienced a similar situation, and can advise? The calendar mechanism is raising and dropping correctly, and is not causing the difficulty. Appreciate any direction! Jim VanOrsdel
     
  2. Randy Beckett

    Randy Beckett Registered User
    NAWCC Member

    May 23, 2012
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    33 yr. employee of American Electric Power Company
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    Hi Jim, Is the clock in beat? Is this a sudden problem? How long has it been since the clock was properly serviced?
     
  3. James VanOrsdel

    James VanOrsdel Registered User

    Jul 28, 2011
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    The clock is in beat, however, there is just a very slight bend in the center shaft. The associated gearing on the front plate does not seem to be binding from this. The clock has just been serviced, and all is OK other than the center shaft.
     
  4. shutterbug

    shutterbug Moderator
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    Oct 19, 2005
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    When does the stopping occur? Any relationship to a warning run or calendar shift? Completely random?
     
  5. Randy Beckett

    Randy Beckett Registered User
    NAWCC Member

    May 23, 2012
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    33 yr. employee of American Electric Power Company
    Mt. Pleasant, Tx
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    If you see a slight bend in the center shaft, it could indicate the pivot in the back plate being bent. The shaft would wobble not only in front where you see it, but between the plates as well. This in it self could cause binding and it could also cause the gears between the plates to bottom out at one place in their rotation causing the power loss. Mark the gear between the plates on the center shaft with a sharpie or similar for a reference when it stops.
     
  6. Scottie-TX

    Scottie-TX Registered User
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    Apr 6, 2004
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    I'd remove the motion works first to eliminate that as a potential problem.
     

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