A clock may be set up in perfect beat, but the shelf is liable to settle or warp, and get out of beat so gradually, that it might not be remarked by one not suspecting it, unless special notice was taken of it.

This matter should be looked to when the clock stops.
I have explained the mode of setting up a clock with reference to putting it in beat, etc.

Another essential point to be attended to is that the rod should hang in the centre or very near the centre of the loop in the crutch wire which is connected with the verge, and for this reason, if it rubs the front or back end of the loop, the friction will cause it to stop.

To prevent this, set the clock case so that it will lean back a little or forward, as it requires.

It sometimes happens that the dial (if it is made of zinc) gets bent in, and the loop of the crutch wire rubs as it passes back and forth.