Jauch clock movement conversion
Jauch clock movement conversion is the best thing to do if it is possible. These are available only for the three weight floor clock models. If you have spring driven Jauch clock movement, there is no replacement and a overhaul of the movement is the only option. If this is your current situation please email some pics of the clock movement to [email protected] and we can quote you for a professional restoration instead. The Jauch to Hermle conversion requires some basic tools. It is not a plug and play unit, there are some simple things required to do this conversion.
- The Hermle conversion kit is equipped with the movement, shims, seat board screws, hands, and pendulum hook.
- Attach the dial to the clock case if it is not already attached. It cannot have the feet going out of the back of the clock dial, some have these posts / feet that lock into the movement instead of just being attached to the wood clock case with some screws. If this is your situation, to use your old clock dial with the new movement it will be needed to remove these posts on the back of the dial somehow. Sometimes they unscrew, sometimes you can just bend them over and they will snap off. After removing these posts, you would just drill small holes in the dial corners and screw it to the case somehow. This will be on your end to dream of a way to attach the old dial on the clock case.
- Install the old moon gear on the new Hermle movement if you have a moon dial. This phase of the moon gear will usually fit the new movement fine and work the moon dial, but this is not always the case. Sometimes on rare occasions you may lose the moon phase function. There is not many people that I know that really look at there clock to know when its a full moon anyway, but you maybe the exception.
- Make certain the movement is in beat. On the back of the movement, the leader and crutch must move the same distance to the right of the handshaft as it does to the left. If it does not, push the leader and crutch to one side until they are equal.
- Install movement on the shims provided, lightly tighten the seat board screws. Install the Hermle pendulum hook on the stick.
- When adjusting the hammer wires, lift the hammer, and using the thumb, index and middle fingers, form a “V” to bend the middle portion of the wire in the direction needed. Hammers should be about 1/8” from the rods while at rest and they must hit squarely on the rods. Several adjustments may be necessary for best results.
- Level the clock side to side and front to back solidly on the floor.
- Install pendulum on leader.
- Install weights on the clock with the heaviest weight on the right as you look at the clock.
- Install the hands on the clock in the following manner: Place the minute hand on the clock and turn it slowly until the movement chimes the hour. Remove the minute hand. Place the hour hand on the clock pointing to the number that indicates the number of times the clock just struck. With pliers, grasp the hub on the minute hand and turn the hub to reorient the square bushing on the minute hand. Repeat until the minute hand slides onto the movement arbor at the 12 o’clock position.
- Lowering the pendulum by one turn of the rating nut to the left will slow the clock by about one minute per day.