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Strike mechanism setup - Junghans movement

MikeEll

By MikeEll
in All Things Clocks

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MikeEll WRT Addict

MikeEll

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Hi folks, I'm servicing a Junghans mantle clock with a lovely movement from the 20s. I'm having a little trouble setting up the strike mechanism. Can anyone help me out with a few pointers, please? Ideally, a complete setup procedure or a link to some documentation might help.  Pictures below...

Many thanks.

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oldhippy Distinguished Member

oldhippy

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Setting up the strike side of the count wheel strike means ensuring that the warning pin is sitting just off the locking lever (12 o’clock position), the drop lever is sitting on the flat section of the cam wheel, and the count lever is in one of the deep slots of the count wheel.

If you need more help just ask. 

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MikeEll WRT Addict

MikeEll

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thank's guys, I figured it out in the end.  Was quite rewarding to see it work correctly.  I did wonder how it triggered the half hour, but I noticed that the width of the slots on the count wheel allow for it to drop into the same slot twice, once for the hour and another single strike for the half hour.

What I didnt realise was that I had to align those things you mentioned, oldhippy, as I'm fitting the wheels and levers to the plates.  I understand it now, I think the next time will be much easier. 

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transporter Super WRT Addict

transporter

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Next time run the clock with power on and activate the strike and chime trains if fitted and note the positions of the warning wheels, stop wheels, lifting levers, gathering pallet etc and make a note. 

As I'm still in training i still make small diagrams of each movement I work on and write a small descriptive  explanation for each component, this i do at the back of the book with the job number and towards the front i list all the bushes that have been changed. on each arbor Assembly, helps massively and you soon realise that all works basically work the same, its just the manufacturers that add little bits to improve ( make life harder in some cases ) movements.  

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