Expert: William J Perkins - 7/9/2009

Question
QUESTION: I have a chinese mechanical movement in my wall clock that keeps good time, but the case must be be tilted to one side so the action of the pendulum works properly.  When I straighten the case so it is plum, the pendulum stops.  What can I do. I patiently wait for your reply. Thanks..Steve in Vegas

ANSWER: Your clock is more than likely out of beat.  To correct square up the clock to the position you wish it to hang, that is both front to back and side to side.  Once this is done pull gently down upon the pendulum with a force of say about 1 lb.  While doing this swing it back and forth in an arch of about two inches, 1 inch per side. The crutch from which your pendulum is hung is friction fit to the escapement wheel shaft, the action your are taking aligns the crutch to the escapement anchor. Relieve the pressure on the pendulum as it passes dead center and let it go.This should have reset the clocks beat.  If it does not, the clock most likely needs servicing.  Regards WJP

---------- FOLLOW-UP ----------

QUESTION: I'm afraid to do what you suggested in fear of damaging the movement. If I could remove the dial so I can see how the pendulum is attached, I think I'll better understand how the pendulum is works. However, trying to remove the dial posed a problem..the hands must first be removed. There is a small brass nut holding the minute hand which I can remove. The small hour hand looks like it is friction fitted, and I'm having trouble removing this hand. Once I remove this hand, the dial removal is no problem. This will let me view the movement.  Any suggestions, and incidentally, thanks for your assistance....so far..Again I wait patiently for your reply..Steve in Vegas

Answer
You are on the right track.  The hour hand for your clock is most likely friction fit, I so simply pull it straight back and off.  Before doing this be absolutely sure that the hand is not held in place by a nut.  This is rare but, you should be sure.  If indeed there is a nut remove it then pull the hand off.  In either case note the hand position before removal.  You will need to put them back in the same position.  Don't hesitate to get in touch if you feel I could be of further help.  Regards WJP