Kienzle Wall Clock

In for repair is a german wall clock made by the Kienzle Company.  There were no markings on the clock movement except for the Kienzle stamp.  This short history of the Kienzle factory was taken from various links from Wikipedia:  Kienzle Factory and History.

Here is the clock as it came into the shop.  At the bottom of the case was a wood screw (A).  When first arrived I had to scratch my head wondering if this screw really belonged to the clock.  Upon further disassembly, it was one of two screws that secured the chime rod block.  The chime rod (B) was loose and just sitting at the bottom of the clock.  Before disassembly, the thought the chime rod was broken.  It was not, the chime block was not attached to the case.  (C) loose glass on the side of the case.  This needed some TLC.

The chime rod and block repair is depicked in these next two images.  As stated above, there was one wood screw in the case but not a 2nd screw.  When the movement was removed from the case it was discovered that one of the holes have been blown out.  It looks like the 2nd screw was put in a knot of the wood that gave way.  

See below:

After repair

Repaired with DAP professional wood filler.  A 2nd screw was obtained and the chime rod and block was successfully attached to the case.

The next repair is the pendulum ball.  As you can see in the image below, it was damaged.  The two images below demonstrate the before and after repair.

Before

Dimple removed and ball polished

The next repair is a missing gromit on the right winding hole.  This was replaced.

Before

After

The clock mechanism was examined for wear.  Surprisingly the clock was dirty but in relatively good shape.  Here are two images of the front and back of the movement before disassembly and cleaning.

Front

Back

The power was let down and pivot wear was examined.  There was no significant wear.  The movement was then disassembled and all pivots were tested for groves and roughness.  The customer stated that this clock was in storage for roughly 10 years.  This does make sense, the movement is dirty but very little wear.

Here is an image of the movement with the top plate off

The clock wheels, levers, plates, and springs were all ultrasonically cleaned.  The following images show all the pieces and parts from complete disassembly to back together.

While the clock was being cleaned in the ultrasonic cleaner, the glass was secured in the case by tacking a small piece of wood strip between the case and the glass.  This insured a very secure finish.  The case was oiled with high grade wood oil and the glass was cleaned.  Once the movement is ready for installation, the case will be ready.

This image show the mainsprings out of the barrels, the time and strike trains are separated and organized by their position going back into the plates.

This image shows a partial assembly.  The mainsprings are back in the barrels and the 1st and 2nd wheels are placed.

After the mechanism was reassembled the tension springs are secured, the strike was adjusted, and the escapement was put "In Beat".  The clock movement was then tested for 24 hours out of the case making sure things are ticking and striking appropriately.  Once I am satisfied all is working as designed, the clock movement is oiled and placed in the case and tested again.  This time, the clock is put "In Beat" when the case is level and the strike hammer is adjusted for the chime rod to give the best sound possible.  This clock does have a very smooth mellow sound.

The face and hands were installed on the clock and again testing occured.

All is well and the clock is ready to be returned to the customer.

Another successful repair.