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Chelsea time only clock

eteo66

Registered User
Mar 31, 2008
265
3
18
Hi,

I have an identical clock as shown in this pic.

The clock stopped and it needs servicing. I don't really want to mess around with the platform but the gears attach to the undersurface of the platform plate. It seems like I have to remove the platform escapement from the plate in order to do some bushing. Any advice? Thanks
 

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coldwar

Registered User
May 20, 2009
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www.hoagsclockshop.com
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Hi,

I have an identical clock as shown in this pic.

The clock stopped and it needs servicing. I don't really want to mess around with the platform but the gears attach to the undersurface of the platform plate. It seems like I have to remove the platform escapement from the plate in order to do some bushing. Any advice? Thanks
Just some general advice for you. The Chelsea which have the Waltham escapement on plate rather then a detachable platform have to have every escapement variable just so to run well, and to keep even time over a week running. I assume since you are prepared to go to work installing bushings it does not run well, in my experience, they certainly wear with use, but more often then not trouble with running ends up coming down to settings and proper set up of this escapement. Often, the critical wear is in the escape wheel hole, top and bottom, and the work is ticklish to jewel those holes, or install bushings correctly to maintain end shake setting, and hole centerlines. I set jewels on escape wheel and fork holes when wear associated with use is seen to extent to enter in to reliability. So often these mechs are seen with a stronger mainspring installed to try to result in better running over a week, then you see balance loaded down with timing washers attempting to stop potential overbanking. I will admit the factory spring strength, with often 80 years of use, or wound in a barrel, can seem weak, but caution is advised in any changes there.

So if it seems worn enough to bush in train wheels, very well, but I suspect you will not remove need for the work which will pay off in good running. P.S. this would not be the unit with which you begin to learn learn escapement work. Parts have all but dried up, and are scalpers price items. Proceed with caution - Good Luck ~ CW
 

eteo66

Registered User
Mar 31, 2008
265
3
18
Thank you for your advice. I found out that it stopped running because the second hand wheel (?proper name) was all glued up due to congealed oil. I cleaned this and it started again and then stopped after a few minutes. Perhaps it is now not in beat? I will try again but any further advice is still appreciated!

Regards
 

Kevin W.

NAWCC Member
Apr 11, 2002
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Nepean, Ontario, Canada
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One other word of advise you likely know.:) Let down the main spring.
 

Andy Dervan

Gibbs Literary Award
NAWCC Star Fellow
NAWCC Member
Oct 23, 2002
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Hello eteo66,

If you are not familiar with working on watches and clocks you should take it to a watch repair person, because these clocks are more delicate than 8 day time & strike shelf clocks. You do not want to mess up the platform escapement, because it will be difficult to find a replacement.

Clock needs to be completely disassembled, properly cleaned, examined for any worn or damaged parts before completing all repairs, and reassembling.

Andy
 

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