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  1. #1

    Default Gilbert Mantle - Speed Control

    Which way does one turn the speed adjustment ( S F) ?? If I want to speed up the clock do I turn the adjustment clockwise to the right (F) ?? Is this adjustment infinite or is it a cam that if over turned will result in slowing the clock instead of speeding up the movement??

  2. #2
    Forums Administrator harold bain's Avatar
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    Default Re: Gilbert Mantle - Speed Control (RE: newmarguy)

    Yes, turn it clockwise toward the "F" to speed up the clock. You are adjusting a screw, and once you run out of threads, you run out of adjustment. It won't start going the other way at the end of the adjustment
    harold bain, Member ch 33
    "If it won't "tick",
    let me "tock" to it"

  3. #3

    Default Re: Gilbert Mantle - Speed Control (RE: newmarguy)

    I am slow by about 5 min. over 24 hrs - would one turn the speed several rotations to adjust ?? Is this a coarse adjustment or would it be not unusual to have to turn the adjustment several complete rotations??

  4. #4
    Forums Administrator harold bain's Avatar
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    Default Re: Gilbert Mantle - Speed Control (RE: newmarguy)

    I would use about one turn, then note the difference 24 hours later. For fine tuning, let it run a week between adjustments. Is your pendulum bob adjustable at the bottom? If so, that is your coarse adjustment.
    harold bain, Member ch 33
    "If it won't "tick",
    let me "tock" to it"

  5. #5

    Default Re: Gilbert Mantle - Speed Control (RE: newmarguy)

    Thanks for the info Harold, I will give that a try.

  6. #6
    Registered User John Prevatte's Avatar
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    Default Re: Gilbert Mantle - Speed Control (RE: newmarguy)

    A Gilbert mantle speeds up by turning the adjuster to the right. Make small adjustments like 1/4 turns and recheck in 24 hours. If you run out of adjutment , the adjustment assembly will stop . If you need more, shorten pendulum wire. Cut off the smallest amount you can, reform hook and retry.


    good luck
    john

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