type of clock, it is possible for the hands to get bent and interfere
with each other or touch the dial or the glass covering the dial.
close look at the hands and see if this is the case. If so, stop the
clock and carefully bend the hands slightly so they can make a full
rotation around the dial of the clock without touching anything.
hands are severely bent or broken, they should be replaced. This should
be done by a clock repair specialist.