Ingraham Clock Stops

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  • #48407
    wingman
    Participant
    • Topics Started: 34
    • Total Posts: 91

    I overhauled a Ingraham mantle clock with strike train. The clock occasionally stopped before the overhaul, at 20 minutes after the hour. After the overhaul bushings and new mainsprings it still does this. Any suggestions?

    Steve

    #52354
    willofiam
    Moderator
    • Topics Started: 75
    • Total Posts: 1437

    Hi Steve, does this happen when the strike train is about to go into warning, I would assume it has a half hour strike but you would have to let us know if it is a passive strike or if it runs the strike, you can tell by the count wheel and whether it has a extra slot after each hour count, if it does then it runs the 1/2 hour strike, otherwise the hammer is lifted by the center cam without any run = passive strike, it sounds like it doesnt do it at 10 to the top of the hour, check your center cam and lifting levers, that they all are smoothly operating. look at the J hook or lifting lever and the center cam that it rides on, this should be smooth, it is possible something is binding and stopping the clock other than having pivot and power issues, William P.S. have fun!!! :D

    #52355
    jim1228
    Participant
    • Topics Started: 6
    • Total Posts: 75

    Hi Steve,
    I don’t know if you have already done this but, mount the movement on a movement stand for bench test. That way you can see exactly what the movement is doing. Do this with good lighting . Also try putting the hands on so you can advance the time and watch those levers and cams like William suggested. You could have a bent arbor or a marred tooth on one of your gears. Let us know what you find. I wish you well :)

    Jim

    #52356
    wingman
    Participant
    • Topics Started: 34
    • Total Posts: 91

    Thanks Both are good ideas. I believe it has a passive strike on the 1/2 hour. That would account for it running OK at 10 min. to the hour but not 20 min after
    . I’ll check out the center cam.

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wingmanIngraham Clock Stops