A Pearl Grandfather clock has inner and outer mechanisms that synchronize together. If one part of the clock is faulty, it can cause other parts of the clock to malfunction. These types of clocks are known for their pendulums, weights and chimes that need to be adjusted.
Things You'll Need
Confirm that your Pearl Grandfather clock is level. Always work on a clock in the place it is meant to be on display. Moving a Pearl Grandfather clock after adjustments may mess up the alignment of its weights and pendulum. Place a small piece of carpet or wood under the footing of the Grandfather clock if it's off-balance, and check that the clock is leaning against a flat wall surface for support.
Take a small pair of pliers, and open up the side panel of the Pearl Grandfather clock. Examine the weights to see if they are in the right order. Look on the bottom of the weights to see where they are marked "Left," "Right" and "Center." Adjust the weights if they are twisted. Raise the chime bar if the chimes are hitting the weights. Make sure the chimes work properly once everything is adjusted and that the weights are properly leveled.
Look at the lever on the chime dial, if there is a problem with the weights not falling in place. Make sure that the chime lever is centered, and that the chime bar is not in the "Up" position, prohibiting the weights from falling correctly.
Wind the Pearl Grandfather clock daily, making sure not to over-wind it. Set the minute hand on the hour you want the clock to chime, turning it counterclockwise. Wait for the clock to chime. Wind the big hand around once, resting it on the 12.
Fix the pendulum once the weights are adjusted. Make sure the pendulum is hanging correctly, with the lower pendulum bob facing the front. The shiny side of the pendulum bob should always be facing outward. Make sure the pendulum swings correctly. A faulty pendulum prevents the time train in a Pearl Grandfather clock from moving, interfering with its inner-gear mechanisms.
Look inside and examine the spring. Oil the spring at the pivot points, so that it runs correctly and with less effort. Replace the spring if necessary. Place a small amount of clock oil on the gears of the clock, where the parts rub in sections. Oil a Pearl Grandfather clock at least once every three years.
SETTING YOUR MOON DIAL
The moon dial is designed to show the shape of the moon as it appears in the sky, the number alongside it being the lunar date. The numbers on the dial are of the Lunar Calendar and NOT the calendar date. A lunar month has consistently twenty nine and a half days in every month and these are usually lettered in Arabic (English) numerals. The Full Moon always occurs on the 15th day of the Lunar Calendar. If it were a full moon today, the image of the moon on the dial would be centered below the 15 on the dial. There are two moons on the dial and it makes no difference which one is under the 15. Grandfather clock moon dials consist of a round disk displaying two pictures of the moon. A one half rotation of the disk occures every 29.5 days which is one lunar cycle.
If your Grandfather Clock has a moving moon dial feature, follow these instructions. To set moon dial, apply slight pressure with your fingers to the front of the moon dial. Rotate the moon dial Clockwise until the moon is directly below the number 15 on the dial. (See figure 5).
Traditional Moon Dial on a Grandfather Clock
If the moon dial will not rotate, wait 6 hours and try again. Never force the moon dial as it should move easily.
1) Using an almanac, lunar calendar or the chart below to determine the date of the last full moon.
2) Position the moon dial so the moon is under the 15 on the dial.
3) Count the number of days past the last full moon on a calendar.
4) Turn the moon dial Clockwise one click for each of the number of days past the last full moon.
The moon dial is now set and will indicate the proper moon phases as long as the Grandfather Clock operates continuously.
Let's pretend today is the 20th of any month.
Your almanac or lunar calendar says the full moon occurs on the 25 of this month.
(this means the full moon is 5 days away..right?)
Set your moon dial on your Grandfather Clock so the moon is under the 10 on the dial which is 5 days before the 15th day the the dial which is the full moon.
If the Grandfather Clock stops for more than 24 hours, the moon dial will also stop, and must be reset when the Grandfather Clock is started again.