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Keywound Mantel Clocks
Keywound Mantel clocks come in a variety of styles and features. The better keywound Mantel clocks offer a movement made in Germany with a case made in Germany, the United States or Asia. If you are pleased with the style, make sure the movement is made in Germany. The movement should be made by either Kieninger or Hermle. These are the two major brands of clock movements in Germany. These clocks will last a lifetime if they are maintained properly by oiling (by a professional) and make a family heirloom that may be passed on from generation to generation. These clocks are mechanical and need to be wound with a key on a defined basis. This is usually once a week.
Kieninger Mantel Clock
Figure 1. displays the most common Kieninger mantel clock movement. This model uses a unique platform escapement which regulates the spring tension so the clock will keep the proper time. There is a lever that points to the right that may be moved up or down to change the tension on the wheel to change the speed - fast to slow. There is a clear plastic dust cover covering the escapement, but the control arm is still accessible. Move this arm (the Timer Adjustment Lever) ever so gently as it is sensitive. A very small change in the position of the lever will dramatically change the speed of the clock.
If the clock is fully wound and the wheel on the platform escapement is not moving, carefully take off the clear plastic cover and very gently, give the wheel a slight touch on the top just enough to start it moving. It should continue moving. If not, the platform escapement may need replacing.
Replacing the platform escapement
Try to let the clock wind down completely and remove the cover of the platform escapement. You will then need to remove 2 small nickel plated screws from the top left and bottom right of the platform escapement. Carefully pull the platform escapement straight out toward you and it should release and come out easily. Carefully install the replacement in the same location being careful not to touch the wheel or apply any pressure near the wheel. Once it is flush and tight against the back cover, replace the two nickel plated screws back in their original location. Wind the middle arbor above the 6:00 on the clock and the balance wheel should start moving back and forth rapidly. If you need the part itself, you may purchase it here.
SETTING THE TIME ON A KEYWOUND CLOCK: (moving the hands)
To set the time, move
ONLY THE MINUTE HAND counter Clockwise (backwards) until hour and minute
hand are at the correct time. (See figure 6). DO NOT MOVE THE HOUR HAND
WHEN SETTING THE TIME. The hour hand will move automatically when the
minute hand is moved. By moving the minute hand counter Clockwise it is
not necessary to wait for the Mantel Clock to chime as the minute
hand passes each quarter hour. (See figure 6). The movement has a self
correcting feature which synchronizes the chimes with the time. If after
setting the Mantel Clock on time, it does not chime properly,
permit it to operate 2 hours to correct itself.
You may move the minute hand clockwise to set the chime, but you must pause
at every quarter hour and let the chime complete before moving the hand to
the next quarter hour.
CHIMES HAVE THE INCORRECT TONE
MANTEL CLOCK WILL
NOT CHIME OR STRIKE
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