Waterbury Clock with Extreme Pivot Wear

In for repair is a Waterbury steeple clock with alarm and pendulum indicator bob.  

When it was brought into the shop, the customer provided information about a slipping/grinding sound coming when the minute hand was manually adjusted.  The clock is in nice condition given the age of the clock.  An estimate for this particular clock is about 1885.  A short history of the Waterbury Clock Company can be found by following this link.  Below is a picture of this nice clock:

After the clock movement was taken out of the case, it was obvious what the problem is.  Follow this link for a short video of the excessive wear.  The customer stated and I proved it that the clock still runs.  This is also a verification that these American time & strike clocks are overpowered, i.e., the mainsprings are too strong.  

Another interesting tid-bit of this previous repair was the clock was worn out a long time ago and the previous repair person corrected this pivot hole wear by punching the worn hole with a punch.  By doing this, the brass around the hole was crowded into the wear area.  The following images show the 2 punches used to move the brass.

The circled pivot hole below is the badly worn hole that caused the grinding/sliding sound when adjusting the minute hand.  Notice the worn pivot hole is more than twice as wide as the original pivot.

After the movement was inspected there were 11 pivot holes that needed attention.  This included the holes that were punched to "repair" the worn pivot hole.  The pivots were inspected.  Every one of them needed polishing, and they were.

The mainsprings were examined and were a little worn but were in great shape for the age of the clock.  The winding clicks and springs were examined, and they too were good.

After all work was performed on the clock.  All the wheels, levers, plates, & mainsprings were ultrasonically cleaned.  The clock was put back together and tested.  Everything looked and functioned great.  The clock was then put in the case and tested again.  With very little pendulum adjustments for regulation, the clock ran beautifully.