Help Linden Black Forest clock

Ken2469

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Dec 16, 2019
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I work on pocket watch, So this new to me, fixed a Linden mantel 8 day clock, easy fix , bent spring . but how do I adjust it? there's a + and - on the top. but not sure what needs moved. the spring on top?
 
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bruce linde

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your video doesn't work... pls try uploading it to youtube and then copying and pasting the url into a post here.

also, you may think you've explained the problem but more clarification is needed.
 

bruce linde

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The video is still not working… Did you make sure you published it and made it available to all?
 

bruce linde

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really trying to help, but even now that the video is working i am still not clear on your question… maybe how to regulate the movement?

btw… all caps is the internet equivalent of shouting
 

Willie X

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Looks like a pre 1988 Hermle.

The fine regulation is done by rotating the disk, with three pointed arms on top of the balance wheel.

If it is gaining time, the problem is almost always worn out bushing.

If loosing time, the problem is usually something dragging/misadjusted in the escapement.

Willie X
 

JeffG

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If it is gaining time, the problem is almost always worn out bushing.
Just quizzing myself- would it be gaining time because a worn bushing would be robbing power from the escapement and causing the balance to swing with less total rotation and therefore increased BPH?
 

Willie X

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Yes, it has to have good power to keep time. One full rotation of the balance, from stop to stop, is a good sign of adequate power. Willie X
 

shutterbug

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Pretty much the same as a watch except that jewels don't wear as much as pivot holes do.
 

Ken2469

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OK, I think I found the problem, were do i find this at ? ,the teeth are worn down, when fully wind it pop the the spring back and bends ,It a 83 CUCKOO WIN_20211021_12_49_42_Pro (2).jpg
 

Willie X

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As already stated, the movement is a Hermle. There are two sizes available, yours takes the larger one. It's called a 'click wheel' but non clock people usually call it a ratchet wheel.

Other parts may also be damaged.

Willie X
 

Ken2469

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As already stated, the movement is a Hermle. There are two sizes available, yours takes the larger one. It's called a 'click wheel' but non clock people usually call it a ratchet wheel.

Other parts may also be damaged.

Willie X
1634846221590.png thank you. I check everything, clock is ruing great but not at full power. just letting the power down to change the gear.

CLICK WHEEL: 16 TEETH/13MM

I'm a watch repair not a clock repairer so I hope i got the right gear
 
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shutterbug

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Click wheels can often be salvaged with a little work with a file. They are critical only in that they have to mate correctly with the face of the click and hold in place. If the new one doesn't fit or can't be altered to fit, try that. The flat part of the click and the flat part of the teeth should match each other for the safest outcome.
 

Ken2469

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thank guys. just waiting on eBay shipping . gear was to far gone to repair 1635535247330.png
 

shutterbug

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When you get the old one out, try reshaping the teeth with a file. You might surprise yourself, and the experience will serve you well in the future ;)
 

Willie X

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That's an old style stamped click wheel. Hermles now have a machined version.
Hopefully the new wheel will be the improved versionm. If not, it would be a good idea to 'improve' it yourself, as Bugs just mentioned. Willie X
 

Ken2469

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That's an old style stamped click wheel. Hermles now have a machined version.
Hopefully the new wheel will be the improved versionm. If not, it would be a good idea to 'improve' it yourself, as Bugs just mentioned. Willie X
I got the the new wheel in. And a new spring . Wind it all the way up and it's working great. Using pegwood to clean out the holes and reoil it. It my frist clock ⏰ repar. For money.
 

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