Wall Clock with Jauch Movement

In for repair is an oak octagon wall clock reproduction with an Jauch time and strike movement. The case was well done made of white oak.  A nice looking clock.

The clock did not run when it was brought in for repair.

Once the movement was taken out of the clock it was apparent why the clock did not want to run.  There were 6 pivot holes that were badly warn.  Black oil was gushing out of the pivot holes.  See the samples below:
This is a picture of the right side of the back of the movement.  Notice the two pivot holes with gobs of dirty oil and the drip of dirty oil coming from the top pivot hole.  Seeing this kind of dirt in the pivot holes is a good indication of pivot hole wear and possibly pivot wear.  The movement was disassembled and the pivot holes were worn.  The pivots were surprisingly is very good shape.  These did not have to be polished.  New bushings were installed in these two holes and sized to fit.  In total, there was 6 pivot holes needed bushing work.

Here is a picture of the mainsprings before removal from the mainspring barrels and after.  Look closely, there is a ton of black oil and debris in these barrels.  The only way to remove this is to remove the mainsprings from the barrel and clean using hi-grade clock cleaning solutions in an ultrasonic clock cleaner.  It did a wonderful job.  The springs looked good.  These springs were stretched to rejuvenate them once they go back into the barrels.  Notice how many loops can be seen close to the mainspring arbor before the stretching compared to after.  Most of the spring is pushing against the side of the barrel compared to before the stretch.
As mentioned earlier, the movement was very dirty.  Here is a picture of the escape pallets.  The chunks of dirt and grime are circled.

These pictures were inserted because of its artsy balanced arrangement.  In this clock, the wheels just sat in place looked so impressive.  Check it out.
 
And after the bushing, mainspring, and cleaning work was complete the clock was reassembled and tested on the test stand.  The clock ran well.
Testing was done for 3 days, making sure the clock performs as designed.  The next step is to place the movement in the case with clock hands installed.  The initial regulation/speed of the clock is tested along with the hammer striking the gong appropriately.

The completed clock!  Ready to come home.


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