They are held on a fine suspension wire which is attached to the clock in in two blocks, one with a screw through the top and a pin & hook at the bottom on the pendulum. The pendulum should simply hook back on the bottom.
It is pretty likely that the suspension wire has broken - they are very fragile.
Take the suspension and blocks off the clock and measure carefully - check out meadows & passmore website for a replacement suspension.
Paul., November 2008
