Clock Repair 101: Making Sense of the Time Gears

In my previous post I finished cleaning my Goodwill clock, ending up with a jumble of gears and other parts. You may recall that when I disassembled this clock, parts sort of fell out willy-nilly, leaving me a bit fuzzy about what gears go where.  In this post, I figure out which gears are part of the Going (time) Train (gear set), and as a bonus I calculate the length of pendulum this clock requires.

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Clock Repair 101: Disassembly / Destruction

In my previous post I covered the dangers of mainsprings, and bought the minimum of tools required to safely handle mainsprings. In this post I disassemble my junker clock.

Using my new mainspring clamps and Let Down key, I Let Down (unwound) the chime mainspring and time mainspring, following the process I’d seen in the videos:

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Clock Repair 101: a Time Bomb Waiting to Go Off

In my previous post I explained how I got started on this strange path to clock repair. In this post I talk about the dangers, some videos, and my first clock repair tools.

The first thing I did was to remove my Goodwill clock’s movement from the case. This step is pretty easy: unscrew the nut holding the hands on, gently pull the hands off, unscrew the wood screws holding the face onto the clock and voila, there is the movement.

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Clock Repair 101: “Lasciate Ogne Speranza, Voi Ch’intrate”

The Dark Arts of clock repair open before me. I feel the need to wear flannel. …to create a basement workshop. …and to live where it snows most of the year. What brought this malady on? A clock.

I have an old Seth Thomas “Chicago” series mantel clock that I believe belonged to my paternal grandparents, who were married in 1909. I haven’t run it for years, and got it into my head that it needed repair.

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