Ticking OK but stops
If the clock is now in beat, meaning the tick and the tock are evenly spaced, but then the clock stops after awhile, what now? Here are some other common ailments that are meant to be looked into before going into a cleaning procedure. Are the hands touching the dial, or each other? Bend the hands so they do not touch.
Is the pendulum touching another object during its swing? The pendulum cannot touch anything during its swing. It is commonly found in mantle clocks that the wrong pendulum bob has been put on the clock. Bobs are lost frequently like clock keys. If someone decides to replace the bob but hooks on a fatter one then the original, it may bump into the movement during its swing, even though the clock is level. Being off level is the most common reason for the pendulum to be bonking into something during its swing. If a clock is not level side to side and front to back, or close, the bob may hit the case. It depends on the clock, all clocks are meant to be level and in beat from side to side, but not all clocks are meant to be perfectly level from front to back. The point is, to keep the pendulum totally free from obstructions because it uses its own weight and momentum to help keep the clock running. If it bumps anything, even slightly, then it loses some momentum and the clock will eventually stop.
If these things do not fix the clock then it would be safe to assume there is a general lack of power in the time train. It is time to give the clock a good cleaning and check over for excessive wear. If the old oil dried up, then this would cause to much friction for the clock to run with the weights power. Clean out the old oil and check for excessive wear at the pivot holes, these are explained in another section.
To get to this point means it may be time to look for a new movement. Unless you find clocks as interesting as I do, then the time put into a movement is not worth it when you can get a new movement, improved by the factory with bronze bushings, so inexpensively. Most places charge more to clean a movement than to replace with a brand new unit. If the movement is on our charts as a direct replacement with your current manufacturer, then the movement shipped to you will be the exact same as you now have. Your current pendulum, weights, dial and chime block (everything) will fit just as your old movement did in its case.
If your clock is not on the charts and it is very old, then it may be best to give it to a clockmaker if the clock is sentimental. This is only because if a pivot breaks or something else then it sometimes is very hard to find a replacement part. These parts are explained in the later chapters.
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