You may be able to replace the escape wheel with one that has fewer teeth which will require a longer pendulum.
Pendulum wall clock runs slow.
Use the following rules to adjust the pendulum nut.
Pendulum bob with rate adjustment french time and strike.
To slow down the clock loosen the adjustment nut turn it toward your left.
The clock will run slower.
Clocks with an interior or exterior pendulum have adjustment screws either on the pendulum or through a hole in the top of the clock.
The movement that s in the clock also does not appear to be a very strung runner rather weak pendulum swing.
It just needs a simple adjustment.
Fixing a clock that runs too fast can be as easy as turning a screw.
Moving a clock to a higher elevation will slow it down as the air is thinner.
A clock that runs quickly still works fine.
Increasing the ambient temperature of a clock will slow it down from the expansion and lengthening of the pendulum unless the pendulum is a compensating type.
Shorten the pendulum by turning the screw mechanism to the right 1 2 turn.
They are cheap and.
Adjust the bob at the bottom of the pendulum if the clock is running too fast or slow.
Push the bob up to make the clock run faster and push the bob down to make it slower.
Changing the speed of time keeping is accomplished by moving the pendulum disk up or down.
To slow the grandfather clock down move the pendulum disk down by turning the adjustment nut to the left.
The pendulum disk is moved up or down by turning the adjustment nut.
Can we see the movement.
If it does not have a little slt that has and s and f on each side then it can not be adjusted go to walmart or a hobby shop and buy a new closck mechanism.
A pendulum too high causes the clock to run fast.
To speed up the clock tighten the nut turn it toward your right.
It may take up to two weeks to properly set a clock that runs fast.
Locate the adjustable weight or screw mechanism near the pendulum arm.
The bob will settle lower making the effective length of the pendulum longer.
Adjust the pendulum up or down.
If the clock is running fast turn the pendulum nut counterclockwise to decrease the rate.
Too low causes the clock to run slow.