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Removing the centre arbor


Joseph111

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Hello again.
This clock seems to be more trouble than it's worth (probably why I am trying to fix it).

I have been stripping down and cleaning an FHF 15cm and have finally been able to remove the chiming mechanism to clean the wheels and the front plate. However, I am still unable to remove the centre wheel and it's arbor because of the chiming mechanism's trigger. Has anyone got any idea how to either remove the trigger or the small brass piece that holds the arbor in? I have tried gently heating it and tapping it but that hasn't moved it.

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You can support the backside (think bench vice almost closed) and tap it out with a brass hammer. Without support you will probably not succeed in getting it out but you may well succeed in damaging the plate or bending the arbor. I usually use levers, and then if it's still stuck after getting it as far off the plate as levers will go, using a screw type puller.

puller.jpg

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As stated by Old Hippy why remove it =, If the hole is not worn and dosn't require bushing they are best left alone,    as continued levering an pulling without the correct tools ( Nicklesilver)      damage the cam/gear or bend the center wheel shaft, not to mention getting it back on if you mange to remove it.

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Fair enough. I will leave it there and clean the movement as it is.

I actually dismantled it to fix a problem with the chimes and now I have realised what went wrong, I am planning to take the opportunity to re-bush several worn holes. It was run until it completely stopped (about 30 years ago) and it is only over the last few months I have taken the time to have a proper look at it.

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Yes i agree with oldhippy or anyone else.  The arbor is set at the factory.  Personally, I hate that i cannot clean out the pivot but to re-mount the four pronged pinion such that it matches the time shaft arbor tip where the minute hand is attached is literally a pain in the ass.  Leave it alone.  Unless its stopping the clock due to a sloppy pivot hole, i never attempt to remove them

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