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  1. #1
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    Default Cable Drum Plastic Guard Hermle 1161

    Hello all..

    I have recently received a floor clock, which has a Hermle 1161 movement. The cable drum for both the strike and chime cable have a plastic drum guard.

    The issue in question is.. both of these cable are winding around the top of the drum guard (photo below).. which is causing the cable to snag when the clock is wound. Exactly what are these plastic guards protecting.? Is there a fix for this.? And are these plastic guards necessary for the clock to function properly.?



    Thank you..
    Bob

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  2. #2
    Forums Administrator harold bain's Avatar
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    Default Re: Cable Drum Plastic Guard Hermle 1161 (By: RRCos)

    Bob, the cable is supposed to be under the guard for it to work properly. You will have to let down the cable and start again, with it under the guard.
    harold bain, Member ch 33
    "If it won't "tick",
    let me "tock" to it"

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    Default Re: Cable Drum Plastic Guard Hermle 1161 (By: harold bain)

    Thank you Harold..

    I did let it unwind completely.. where the cable was back under the guard.. but it went back over the guard upon winding the clock.

  4. #4

    Default Re: Cable Drum Plastic Guard Hermle 1161 (By: RRCos)

    If it works at all, like it is, that would indicate that the long pins that hold the guards in place have been broken off or removed.
    The clock will work just fine without the plastic guards, as long as the weights are in place. Remove a weight and you've got a problem ... sometimes a BIG problem.
    The fix would be to replace all three guards and the missing pins.
    Might be a good idea to check the date code before worrying with the cables. These movements don't last very long.
    Good luck, Willie X

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    Default Re: Cable Drum Plastic Guard Hermle 1161 (By: Willie X)

    Thank you Willie..

    I will inspect closer to see where those clips belong.

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    Default Re: Cable Drum Plastic Guard Hermle 1161 (By: RRCos)

    It might be the broken part of the plastic that is causing it to pop
    over the top.
    These were placed there such that if the cable no longer had the weights
    pulling it tight to the drum, it would keep the cables from tangling into what
    we call bird nesting.
    This is where one part of the cable overlaps other parts.
    If it is allowed to run that way, the cable can be damaged when it
    pulls out from under the overlapped part.
    It can also suddenly pull out a portion of the cable that was loose,
    allowing the weight to drop a few inches.
    This can cause the cable to break.
    The plastic was put there to stop bird nesting from happening
    Most older clocks didn't have such and one needed special care
    when moving these clocks. One either let the cables completely
    down or tied them to the seat board to keep then tight until
    the weights could be replaced.
    Tinker Dwight

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    Default Re: Cable Drum Plastic Guard Hermle 1161 (By: Tinker Dwight)

    Thank you Dwight

    That makes perfect sense. I will remove them for now and replace them if I need to move the clock; before I remove the weights..

    Even in a few clock repair videos out there.. they did not show what kept these plastic guards from spinning.

  8. #8

    Default Re: Cable Drum Plastic Guard Hermle 1161 (By: RRCos)

    You can just pull them off. If they are old and dry, they will break. This is no loss, just tells you that they needed replacing anyway.
    Willie X

  9. #9

    Default Re: Cable Drum Plastic Guard Hermle 1161 (By: Willie X)

    can you buy them as spares? I've been thinking about getting some plastic terry clips to secure lines when shifting movements, but if these were available in the right size presumably I could use those.
    Nick, lots to learn, late starter.

  10. #10
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    Default Re: Cable Drum Plastic Guard Hermle 1161 (By: novicetimekeeper)

    You could buy them, but they are made to fit the movements they were made for. They would be unlikely to be useful for any of the clocks you have. They need to have a "pin" that is there to keep them at one point on the movement where they are effective. Without this pin, you have problems like our poster has.
    harold bain, Member ch 33
    "If it won't "tick",
    let me "tock" to it"

  11. #11

    Default Re: Cable Drum Plastic Guard Hermle 1161 (By: harold bain)

    I wouldn't want to leave them on, I usually use masking tape but I have some movements that need to be kept like it for an extended period and I would prefer a mechanical system as the adhesive on the masking tape is only designed to be removable after a short period.
    Nick, lots to learn, late starter.

  12. #12
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    Default Re: Cable Drum Plastic Guard Hermle 1161 (By: novicetimekeeper)

    I've never had a problem using Duct tape to keep the cable from birdsnesting. Doesn't leave a noticeable residue of glue.
    harold bain, Member ch 33
    "If it won't "tick",
    let me "tock" to it"

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    Default Re: Cable Drum Plastic Guard Hermle 1161 (By: harold bain)

    Thanks to all for some good and helpful information. I was able to rewind the drums and replace the drum guards without the bird nest problem.

    The time drum (pictured below) has the pin and drum guard intact. The chime drum guard has the pin missing and the strike drum guard has a broken tab... which brings me to an even worst dilemma. If one tab has broken off from being brittle.. I should replace all three.. except that the time drum guard, in the center of the movement, can only be removed by removing the plates. I have never taken a movement apart and the thought of this particular movement appears pretty complicated.
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  14. #14

    Default Re: Cable Drum Plastic Guard Hermle 1161 (By: RRCos)

    RR?
    You are lucky. The center retainer is the most important, as there is little access if you have a tangle. The outer two have much better access and you can keep the old retainers, if they don't break, and just push them back on if you have to take the weights off.
    This will allow you to test your movement furthur.
    Willie X

  15. #15
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    Default Re: Cable Drum Plastic Guard Hermle 1161 (By: Willie X)

    Since they are not necessary for normal operation, just remove
    the pieces and leave it off.
    It is only while moving, when you take the weights off that it is an issue.
    You can do one of two things then. One is just to fully unwind by letting
    it run down.
    The other is finding a way to constrain them while moving. Blue masking
    tape is said to work as well as masking tape.
    Remember, cable clocks have been running fine without such extras for
    a couple hundred years. People just found ways to live without CHEAP PLASTIC
    covers.
    Tinker Dwight

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