Clock repair

I received a clock to repair yesterday. I took the clock down to my shop and set it down on the workbench. The clock has a pendulum which started working. I watched the minute hand and it was moving also. I noticed that the hour hand was stuck on the minute hand and thought to myself that this would be easy to fix. The hands were straightened and positioned on the clock. I turned a knob on the back of the clock to position the hands. As the knob turned, the hour hand swung to the 6 o clock position and would not move. I moved the hour hand by hand and found that it would swing freely.

I never have disassembled a clock movement before and thought that I might be able to find the source of the problem and maybe fix it. Using a very small screw diver and my lighted magnifying glass on the scroll saw I proceeded to take the movement apart. I started taking reference photos after the back was removed so I could reassemble the clock if the problem was found.


I finally found the problem with the gear that drives the hour hand. There were several teeth missing. This problem may have been cause by trying to set the clock by moving the hands instead of using the knob on the back of the movement.

Its off to the Internet now to locate a new movement for the clock.