kundo minitire 400 day

Posted: Fri Nov 02, 2007 3:42 am     Post subject: kundo minitire 400 day

clock ticks at wrong positions, pendulum is swinging correctly, same amount each side of its stop position but the ticks are not.
can you help thanks

Posted: Fri Nov 02, 2007 1:33 pm     Post subject:

An uneven "tick-tock" usually requires beat adjustment if this is a mechanical movement. Typically, the pendulum (or pendulum leader - the piece that the pendulum is hung from) will sit within a forked arm (for lack of better description) called a crutch arm. This crutch arm drives the escapement gear by swinging back and forth (driven by the weight of the pendulum). The crutch arm (and not necessarily the pendulum) must swing equally from vertical center to left and vertical center to right.

Remove the pendulum. Hold the crutch arm at vertical center and shift it to the left until you feel resistance. Next bring the crutch arm back to vertical center and swing it to the right until you feel resistance. The swing from center to left must be equal to the swing from center to right. If it is not equal, then the movement is out of beat and will result in an uneven "tick-tock" (and may eventually result in a pendulum which will not maintain swing). To correct this, you can push through the resistance to adjust the crutch arm so that the arm swings equally from center to each side. Performing this adjustment to the crutch arm automatically adjusts the escapement gear of the movement (which is what gives your clock its even "tick-tock").

Posted: Sat Nov 03, 2007 11:35 am     Post subject: 400 day miniature

Unlike a conventional clock movement 400 day clocks do not have an even tick tock sound. They are normally adjusted so that the pendulum rotates evenly from one extreme to the other. Generally the 'tick' sound should be heard at about the same point of travel before the pendulum reverses direction. (not always easy to do since the ticking is very quiet).
If the clock is level, with the pendulum centered in the cup and operates correctly, then that is all the adjustment that it requires.
Occasionally it may be necessary to put the pendulum in beat by trial and error method. I have had anniversary clocks that operated perfectly with the pendulum rotating further in one direction after the tick was heard before it reversed direction, while in the opposite direction the tick came right at the end of travel.

Posted: Wed Nov 07, 2007 12:11 am     Post subject: thanks

thanks people for your help