How to adjust and regulate the time of your grandfather clock is explained in 12 steps.

The pendulum disk can be moved up or down to change the speed of time keeping.The adjustment nut moves the pendulum disk.The Grandfather Clock can be slowed down by moving the pendulum disk to the left.The Grandfather Clock can be sped up if the pendulum disk is moved up by turning the adjustment nut to the right.

The first day of the new year.For at least six days, you can check your Grandfather Clock at the same time every day.2.The record time was selected.3.Correct time to check.4.The minute hand should be set to the correct time.

If you use a phone or VCR, you need to set your clock when the time advances one minute to the next.You will not know what part of a minute has passed when setting your clock if you fail to do so.

If necessary, Day Two, Three, Four, Five, Six.Correct time to check.2.The correct time is shown on your Grandfather Clock.Is your Grandfather clock fast or slow?3.For each half minute fast or slow per day, turn the adjustment nut on the pendulum.24 hours.4.Correct time to check.5.The minute hand should be set to the correct time.

The Grandfather Clock pendulum is shortened when you turn the nut down.The Grandfather Clock pendulum will swing faster if you shorten it when you turn the nut up.You may overcompensate if you turn the nut more than once a day.If you make an adjustment, turn it less than the previous day.

If you have lowered the nut as far down as you can see, you should check to make sure the slot on the bottom is not missing.

I have trouble controlling the number of chimes on my clock because it is one strike behind.Any suggestions?Thank you, Linda Spears.

It’s easy to fix.The hour strike from the chimes should be counted when the clock comes up to the next hour.The hour hand should be moved to the number of the hour you just counted.The minute hand should be moved to the correct time.Done!It takes about an hour for the chimes to sync correctly, but this is how it is done.

The pendulum length could be a problem in the movement.Put the pendulum back up on the flat surface.To make sure the nut is all the way up, look at the threaded rod.Make sure the bob is able to move up and down with the nut if you are at the end of the threads.If that is the case, you could place a larger nut under the original one and let it move up and down the rod, raising the bob to a higher level.If this is an original pendulum and the nut is at the top of the threads, I would recommend finding a clock tech in your area.

The pendulum disc does not move, despite the clock being made by my grandfather.There is an adjustment screw on the bottom.It takes about 15 minutes to run in a day.Is there anything I can do?I can’t ask my grandpa about it.Looking for some help.I want the time to run correctly.

The round disk should be raised or lowered by the nut at the bottom.It could be stuck, stripped or glue it in place.You need to put the pendulum on a table.Find out where it is stuck.If the tread is like most other clocks, the nut needs to go up at least 7 turns.This will correct it for you.

There are problems with the chimes.The ring chimed 8 times if it was 7.Please tell me how to fix this.Thank you.

To correct your chimes, please follow the instructions on the following page.

I removed the pendulum, laid it on a table and poked it while making threats about flea markets.It seems that this has done the job, it is now running correctly, or even a little slow.You have inspired me to find the correct solution, even before you replied.Tim.

The pendulum must not be hitting the nut.Additional content has been added that may help you.The Pendulum on your Grandfather clock needs to be adjusted.

Can you tell me where I can get some information on operating procedures?

The instructions for your grandfather clock can be downloaded.You can click on the link to view it.

The instructions for the grandfather clock should be the same as they were originally.

The clock design affects the thread.The shorter the pendulum, the better.There isn’t a correct spec for this.The owner can widen the thread as the pendulum shortens.Is it possible to pitch?The threaded rod should be horizontal.

It would be difficult to tell unless we could see the grandfather clock movement.This happens on older clocks that have not been cleaned or oiled in a long time.The chime side isn’t allowing the parts to turn within the movement.A technician should do the cleaning and oiling.There is no fix for this one.Good luck, Robert.

I have a clock with 3 weights, one has a nut on the bottom, the other two look the same, can incorrect weights be the cause of my clock running fast after the pendulum?

The weights should be marked on the bottom of the clock as Left, Center and Right.The heaviest weight should be on the right.The pendulum is more likely if the clock is running fast.Look at the lower diagram of the page.Thependulum on your grandfather’s clock can be found at

The round disk is not following the nut when it is lowered.It could be that the bob is on top of the nut.Someone may have replaced the pendulum with an incorrect length if this is a used clock.

I can’t get my grandfather clock to work.I’ve been trying for over a year.If you can get them between 1 or 2 minutes fast or slow, that is good.Is it a good idea to keep accurate time?

If the pendulum bob is moving quickly up and down the rod, most grandfather clocks are able to keep time.If your clock has an all metal pendulum and is in a place where the temperature is stable, you should be able to get it close.It takes some time.Within a month, I had one where it stayed accurate.The clock needs to be set to the correct time for the second.You can record the discrepancy if you check it again within 24 hours.If you are within a minute, make no more than a quarter of a turn on the nut and reset the time.You can record the discrepancy if you check it again 24 hours later.The pendulum nut should be turned less in the same direction if it is closer.Continue until you are happy.

This will improve the accuracy of your clock.Let me know how it goes.

It only took about a month but I think you did a good job.It seems to be having a good time so far.Thank you.

The clock on my cable driven how millerard grandfather clock looses about 20 to 25 seconds every time I wind it.It will catch up by the next day.Is this standard procedure for these types of clocks?

The Colonial of Zeeland Grandfather clock was acquired by me.The chime is 2 minutes faster than the dial.Keeping time accurate.Any ideas?

Never mind.The answer is below, if anyone needs it.You can watch the video.Excellent!The clock does not chime at the proper time.

The clock needs to be oiled and cleaned every 7 years.When old oils get dirty, they become more like glue than oil.It sounds like your hammers are trying to move through the sludge.I bet it would be fine if you got a good cleaning and oiling.

I have a grandfather clock.It has a mechanism that requires the clock to be leveled.The way it keeps time is constantly changing.I have to adjust it again after a few weeks because it slows down or speeds up.What would make this happen?What temperature?The moon?Thanks for any ideas.There is a person named Marilyn.

The nut under the pendulum may be slipping due to stripped thread.It is common for your pendulum stick to be made of wood.The length is changed by temp and humidity.It isn’t the moon.You can replace it with a metal pendulum, but it is less expensive to correct the time once a week.A metal pendulum would take away from the antique value of your wooden pendulum.Good luck!Robert.

My wife and I inherit a handcrafted Mason & Sullivan from my wife’s grandfather.Time is constantly fast and it is very hard to level.The way to last thread is with the nut and pendulum.Bob is moving down.Any thoughts?We have many other wall and mantle clocks as well as 2 Atmos clocks which are amazing.

The pendulum may not be traveling down with the nut as you lower it.If this isn’t the case, I would check to make sure.Good luck…Robert.

The pendulum seems to be hung correctly as the Bob is moving with the nut.What else could it be?

It makes sense that the clock has a wooden pendulum stick.I didn’t think it was the moon, but I suspected the temperature or weather.I enjoy fiddling with the clock and will not replace it.It is a challenge to keep it accurate.Marilyn, best regards.

I adjusted the Bob to be as low as possible to the bottom of the screw thread because my grandfather clock is running 10 minutes fast every day.It doesn’t seem to make a difference if I wind the screw thread up or down.The time seems to have more effect if the clock tilts forward.Any ideas?

The pendulum nut may be being lowered, but the round disk is not following it.You can see instructions on how to correct it at: sure the nut is on the back of the bob.This should work for you.Robert.

I have a wall clock that kept good time for twenty five years with the half and full hour chime accurate to the time.The chimes were always five minutes late when the clock was not wound up while we were away.We have tried many times to reset.There is an adjustment screw on the meconisium.

You can adjust the back of the minute hand to make it point straight up on the hour.The clock is right, but the hand is not.If you follow the instructions, you will be able to correct your issue.Good luck…Robert.

I found a clock model built in 1983.Bob is still running fast despite being lowered as far as possible.The bob follows the nut.The pendulum and weights were not secured when it was transported.The attachment looks right.I head to a clock shop for any ideas.Thanks for sharing your knowledge.

The clock is fast if the nut is all the way to the bottom of the threaded rod and the round disk is also moving down.I think there is something wrong with the pendulum hanger which is making it hang higher than it should be.Good luck!Robert’s image should help.

Robert, thanks a lot for the information.I disassembled the hanger.Everything was fully seated.The clock still runs fast so I am going to try and make the pendulum longer.I will let you know how I did it if it works.Thanks for sharing your knowledge with us.

We have a grandfather clock in our home.It picks up time after a couple days, but I have gotten it to stay running.What can I do to make things better?The pendulum is lowered by an adjustment.Do you think that will work?

I moved your question to the page that will answer the questions for you at:

I would like to thank you for this excellent site.The pendulum stick is wood and the bob is snug on the shaft, so I need to push it up or down to get it to move.I loosened the nut and moved the bob to avoid damaging the suspension spring.I retighten the nut when the bob is in a new position.The clock is on a marble base on the carpet floor.To prevent the case from swaying, I placed wooden balls under the marble to form a solid tripod between the carpet and marble, which makes the contact patch very small.The marble base and 3 balls work better than the 4 feet of clock on the carpet.

When it counts the hour, you need to stop your pendulum.Move the minute hand to the 12:00 position.The hand nut should be re-installed.If your hour count is incorrect, you should move your hand to the correct hour.Good luck!Robert.

Can I use a light lubricant such as wd40 to oil the clock as the oil I have is very old and looks a bit thick?

You don’t useWD40 on a clock movement.Once the clock is on the movement, it makes a mess.If you need to place it in a vat of cleaning solution, it will ruin the solution which is another cost.Remove the movement from the case and clean it with a clock oil.A synthetic, non-migrating clock oil is what you should use.Robert, you can purchase it from

I have been working on a grandfather clock that a friend gave me, and I finally got it working, however it still loses about a minute every day, even though the pendulum bob is raided all the way.Is there anything I can do to get the pendulum in the right range?

When you adjust the nut on the bottom of the pendulum on your grandfather clock, make sure the disk is rising upward.The has additional instructions for adjusting the pendulum on your grandfather clock.This will get it going for you.Good luck, Robert.