Is it viable to turn Strike Star Wheel with Spanners

Discussion in 'Clock Repair' started by ChrisCam, May 2, 2019.

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  1. ChrisCam

    ChrisCam Registered User
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    Dec 9, 2017
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    Hi, I have found old posts suggesting that if the star wheel is in the wrong position it can be turned on its arbor by 2 spanners, one holding the star wheels associated gear wheel to stop it crunching up the teeth whilst a second spanner rotates the star wheel?
    My question is how successful is this in practice? I am currently making some spanners and more than one size is needed.

    spanner.jpg
     
  2. John P

    John P Registered User
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    Sep 17, 2010
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    Most will slip but some wont. Those will have to be adjusted by lifting the plate or moving the gathering pallet.
    Use care here.

    johnp
     
  3. wow

    wow Registered User
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    I have rotated the star wheel on many, but I now try to set the position on it during assembly by putting it in its proper position while the train is in locked position. Like John says, be careful.
     
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  4. R. Croswell

    R. Croswell Registered User

    Apr 4, 2006
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    I'll try to answer your question with a question. Was the star wheel manufactured in such a way that the maker intended it to be moved on the arbor as a means of adjustment? I think not. As for can it be moved using spanners, probably yes, but as with many other things, just because one can doesn't mean that one should.

    RC
     
  5. shutterbug

    shutterbug Moderator
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    Usually the position of the star wheel is dependent on the position of the gathering pallet, and can be altered there.
     
  6. ChrisCam

    ChrisCam Registered User
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    Thanks Everybody for posts, very helpful. I have among my spares several star wheels of different sizes and now with my spanners they all easily move but I take on board everything said here that some may not. Anyway a few hours on the bench drill and grinder I have now 4 spanners which if I use I will use carefully.
    Regards
    Chris

    star spanners.jpg
     
  7. David S

    David S Registered User
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    Dec 18, 2011
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    Chris nice going. I have made a set very similar to yours and always test to see if the wheel can be moved without damaging anything. Everything has risks. If the adjustment can't quite be done by adjusting the gathering pallet then separating the plates also carries a risk of bending a pivot. I prefer to try and move the star wheel before separating the plates. Simply my preference, others can choose their methods.

    star wheel adjusting wrenches.jpg

    Mine are more crude than yours. It always turns out that I need a tool in the middle of a job so want to make it quickly.
    David
     
  8. ChrisCam

    ChrisCam Registered User
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    Thanks David, actaually I was slightly in envy at yours which goes to show we are both proud engineers...nothing wrong with that.
    Regards
    Chris
     

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