Quartz-Pendulum Hits Sides of Clock-Case

Quartz-Pendulum Hits Sides of Clock-Case

Hearing a bonk, bonk, bonk all day and night? This is because the Quartz-pendulum hits the sides of clock-case with each swing of the bob. It may not stop the clock, the clock might work just fine, however the knocking sound of the pendulum hitting the sides of the clock case can be annoying. Lucky for us the correction is fairly simple on these pendulum quartz clock movements.

Why a quartz pendulum hits the sides

In essence, there are only two reason that this might happen. Certainly, the most common reason is the size of the bob. The bob may be too large for the case. Another less likely reason is that the magnet on the movement is too strong. Both of these problems are an easy fix.

The correction

There are two easy fixes for this. The pendulum bob can be swapped out for a smaller sized bob. Therefore the bob never reaching the sides of the case. Or lessen the strength of the magnet on the back of the movement itself by using tape. I have heard of this being done with masking tape with good results. The masking tape creates a slight barrier to lesson the magnetic pull enough to reduce the swing of the pendulum. Therefore the pendulum swing will be less and not hit the sides. Either fix will work, making the clock will again be quiet.

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Updated on: 20/12/2024