The Clock Doctor ®


For Antique French and American “Count-wheel” movements

Strike adjustment :

Count-wheel movements are problematic in that whenever the strike train spring runs out of power before the time train does, the strike will be off when the clock is re-wound. The strike train has to run through the sequence that is determined by a notched wheel (the count-wheel). If the clock strike is out of sequence it must be manually put back into the proper relationship of time and strike in one of two ways. If your clock has a trigger wire: Many count-wheel movements have a wire which hangs down from the trigger arm which can be used to run through the sequence of strikes until the strike agrees with the time. Look inside the case for a thin wire hanging down from behind the face (usually to the left side of the case, it may be an inch or more back from the face on some clocks). Lift the wire to trigger the strike and immediately let go. Repeat this process as necessary. If your clock doesn’t have a wire: If your clock strikes the half hour when the minute hand is on the 12 and strikes the hour when the minute hand is on the 6 there are two ways you can correct this. You can either remove the minute hand from the arbor and reposition it facing the opposite direction or you can bring the minute hand to the 6 and before the clock finishes striking out the hour count move the hand to the 12 (if you feel any resistance never force; stop, backup and try again). Now that the clock is striking the hour when the minute hand is on 12 proceed to the next step. To correct the hour strike: Move the minute hand to the 6 and let it strike the half hour if your clock does so. Then move the minute hand to the 12 counting how many times it strikes. Next, slide the hour hand to the corresponding number on the dial. Now, move the minute hand around the dial stopping to allow the clock to complete its strikes until you arrive at the present time. You’ve done it!

To adjust speed:

The position of the disk (bob) on the pendulum determines the rate of speed of your clock.To speed the clock up - move the bob up by turning the nut to the right (Your thumb to the right).To slow the clock down - move the bob down by turning the nut to the left (Your thumb to the left).On most pendulums, one complete turn (360 degrees) of the nut below the bob will change the speed of the clock by 30 seconds in a 24 hour period. *Note: Unless the bob moves the speed will not change. When moving the nut down make sure the bob stays in contact with the nut. Whenever you adjust the pendulum reset the time. Check the clock again in 24 hours. Continue until the clock is keeping the correct time.


To adjust the hands: (Always move hands slowly and stop immediately if you feel any resistance!)

Always use the minute hand to adjust the time. The minute hand is tied in to the gearing, so as you advance the minute hand the wheels advance. On almost all modern grandfather clocks and many antiques, the hour hand is only friction fit on its arbor. When you move it, it slides without changing anything else. This will cause the hour hand to be out of agreement with the hour strike. Most modern grandfather clocks use either Hermle, Urgos or Kieninger movements. Where Urgos and Kieninger movements allow the hands to be moved counter-clockwise, Hermle movements should only have their hands moved clockwise. *** In any case, whenever the chime or strike start running stop moving the hand immediately until it finishes its run!

Modern Grandfather movements:

If to the right of the numeral three on the dial you see a small arm protruding through a slot in the face;

a. If the "Silent" position is at the top of the slot, once the arm is set to this position it most likely will be safe to advance the minute hand slowly forward until you reach the proper time without needing to stop and wait at every 15 minute point for the ringing to finish.

b. If the "Silent" position is at the bottom of the slot, you might as well leave the switch in its present position as if you want to move the minute hand forward, you will need to stop at every 15 minute point to let the chime and strike train finish its run. However, if you want to go backward, you should be able to do so, but do it slowly and stop if you feel any resistance.

If after you turn the chime back on the chime is not chiming properly, it should reset itself within the next full hour.

 c. If your clock doesn't have a "Silent" switch or its in a different location;

Only move the minute hand clockwise and stop at every 15 minute point until the chime and strike stop running.

Antique Grandfather movements:

Never move the hour hand unless you know that the movement will allow it. Move the minute hand forward stopping at each quarter hour and allowing the chiming to finish before advancing to the next quarter hour. (When moving the minute hand always do so slowly being prepared to stop immediately if any resistance is noticed!)  

Remember to keep your clock on the proper service schedule! (3 year intervals)

Hanging Tubular Bells - The following sequences list bells left to right with #1 as the longest tube.

Hershede movements:

5 Bell - 1,2,3,4,5     8 Bell - 1,2,3,4,5,6,7,8     9 Bell - 2,3,4,5,6,7,8,9 to front 1

Jacques movements:

5 Bell - 1,2,3,4,5     6 Bell - 1,2,4,6,5,3     9 Bell - 9,6,4,1,2,3,5,7,8     11 Bell - 9,6,4,1,2,3,5,7,8,10,11    

13 Bell - 10,7,5,2,1,3,4,6,8,9,11,12

If your clock is not chiming the proper quarter hour:

On Modern clocks and most Antiques: This is usually due to the minute hand falling off and being placed back on the square arbor pointing to a different direction than it was prior to falling off. To correct this issue; advance the hand around the dial allowing the clock to chime each quarter. When you hear the clock strike the hour, remove the minute hand and replace it on the square arbor pointing to the "12" on the dial.

If your clock stops:

Many times the problem with a pendulum clock that stops working is that the clock is out of beat. Most modern movements have a self adjusting verge. This means that you can very easily correct this issue. If you notice that the beat of the clock (the tick tock) is not even simply bring the pendulum over to one side of the case. Back off a hair and release. Let the pendulum swing as wide as possible and the movement should adjust itself to a perfectly even tick tock. This assures that optimum power is getting to the pendulum from the weight.

If your clock is not striking the proper hour:

The call we get most often is that the clock doesn't strike the proper number of times for the hour. On modern clocks this is usually due to someone moving the hour hand to adjust the hour instead of using the minute hand. To correct this issue simply move the minute hand to the 12 on the dial. Take note of what hour the clock strikes. Slide the hour hand to the corresponding number. Then reset the time using the minute hand. (Never force the hands if you feel any resistance!)

To adjust moon dial:

The moon dial advances one click per day (two for Hershede and most antiques).Find a calendar or local newspaper (usually on the weather page) with the phases of the moon listed for the month.Find the closest Full or New moon. Set the moon dial to correspond to the most recent of the two. For a full moon, center the moon on the dial under the 15. For a new moon, adjust so no moon is visible . Now advance the moon dial one click for each day that has passed since (two for Hershede and most antiques).

 Clock regulation

Adjustments for most pendulum clocks.

In-home Grandfather clock service

For Service Call: 201-943-0809

Your clock's movement is a mechanical device which requires a service schedule to keep it running. You may relate the workings to your car's engine. As with your car's engine, your clock's parts are metal on metal. The main determining factor in how many years the parts last is keeping the clock well lubricated by having it oiled periodically.

As time goes by oil starts to break down and dry out. By running a clock movement that isn't sufficiently lubricated you are cutting short the life of the movement.

We recommend an oiling every three years for all weight driven mechanical clocks. With the proper service a well made clock movement should last many lifetimes passing down from generation to generation.