Often a pendulum clock will stop when it has been moved, bumped or even a too aggressive push to restart a pendulum. It is not broken, only out of beat. This only takes a few minutes to re-adjust and all pendulum clock owners should learn how to do this, as this will happen eventually.
How to Set The Beat of the Pendulum Clock
TIP – Prevention: for wall clocks, always remove your pendulum before taking the clock off the wall. If the pendulum stays in the clock, it may scratch the inside of the case, as well as change the beat and then the clock may not work.
Check The “Beat”: Listen to the tick-tock on the clock and see if it is a nice even tick-tock. It should sound steady and even like a metronome. Equal time between the TICK and the TOCK. The pendulum needs to swing exactly equal distances from dead center to the left, as from dead center to the right. If a clock is out of beat, the pendulum will swing for a few minutes then stop, even if the clock case is level.
Setting The Beat of the Pendulum Clock If the beat is irregular like: tock, tick——tock, tick- an adjustment must be made or the clock will stop. This can be done by either try leveling again from left to right by moving the clock very slightly from the bottom until you hear the most even tick-tock. This may not be physically level for the clock case.
If this fails, or you don’t wish to have a clock case crooked on your wall, you may take off the pendulum and slightly move the pendulum leader from left to right or right to left until it almost or starts moving back and forth on it’s own. It should have the same feel from dead center to right and dead center to left. Rehang the pendulum and the clock should continue and you are done.
If setting the beat has not solved the problem and it is a newer clock, please check the steps below:
My clock is in beat, but the pendulum still stops swinging on my clock
Hands have to be free! Make sure the hands are free from touching the other hands and second hand. Also, make sure the hands are not touching the dial at any point. If the hands are touching, this will stop the clock. Slightly bend the hands away from each other by holding the hand still toward the center and slightly pulling the hands away from each other.
Is the Pendulum dragging? Look into the lower side window and watch the pendulum swing. If the pendulum is touching the chime rods toward the back or touching the weights toward the front, the pendulum will stop. This indicates a problem in leveling from front to rear.
Leveling ~ Your clock will need to be level from front to back and side to side.