The method used to adjust the escapement is different from clock to clock.
Pendulum wall clock adjustment.
To speed the grandfather clock up move the pendulum disk up by turning the adjustment nut to the right.
Clock with a pendulum computer accurate timepiece.
However when the chiming becomes less pleasing to the ear an adjustment is required.
The purpose of the adjustment nut is to move the pendulum bob the large disk up or down.
The top of the hour is like a grand finale where the chiming is at its longest followed by the striking of the hour.
Chime clocks are famous for the resonant melodies that play every 15 minutes.
To slow the grandfather clock down move the pendulum disk down by turning the adjustment nut to the left.
It is relatively easy to adjust the pendulum on a clock if follow some simple instructions.
If you do this and keep a record of how much it is turned each week you should be able to adjust the clock s accuracy to within a minute or two a week.
Since we are experts in british grandfather clocks the following pertains to that type of clock.
Pendulum clocks with a time adjustment nut grandfather clocks most wall clocks german mantel clocks shelf clocks etc the adjustment nut is a large nut at the bottom of the pendulum just below the large disk or weight called the bob.
Most pendulum clocks contain adjustment or rate nuts that allow you to alter the length of the pendulum to either increase or decrease the amount of swing.
The crutch is the thin brass rod that connects the escapement to the pendulum.
Mark the neutral point on the masking tape.
Sometimes on older clocks the pendulum parts get tight or frozen and you might be moving the nut but the pendulum bob stays frozen.
1 take off the pendulum and place it backside up on a soft working surface.
Let the pendulum hang in its neutral position and place a piece of masking tape on the case just below the pendulum.
Adjust the weights if they are twisted.
To accurately adjust the clock make the adjustments once a week when the clock is wound.
Use the following rules to adjust the pendulum nut.
The bob will settle lower.
To slow down the clock loosen the adjustment nut turn it toward your left.
It extends from the upper part of the clock movement down along the pendulum suspension rod and loops once around the suspension rod at its bottom point.
Adjust the speed of the pendulum and clock by moving the pendulum adjustment nut.
Push the weights to see that they are working correctly with the pendulum.