Howard Miller Question

Posted: Sat Oct 30, 2010 3:27 pm     Post subject: Howard Miller Question

Greetings,

I have a Howard Miller Mantle clock with a 340-020 movement. The clock keeps gaining time, like 40 minutes a day. I have the speed adjustment backed all the way out to the end of the shaft. This is where it gets if you continue to make adjustments in the - direction. I can't see any damage. What should I look for and how can I fix this?

Thanks in advance for your help!

Ray

Posted: Sun Oct 31, 2010 1:38 am     Post subject:

have you looked at where the gear shafts go through the back and front plates. Could be some worn holes that is causing the problem. I would watch the pendulum motion in action, to see if the escapement is skipping.

Posted: Sun Oct 31, 2010 2:28 am     Post subject: Comment

I will look at the shafts and their penetrations. However, I do not have a pendulum on this clock. The time is determined by a vertical pin with a planar spring that the time adjuster works on. Sorry for this description, but I don't know what to call the piece.

Posted: Sun Oct 31, 2010 3:23 am     Post subject:



Ah, that is a balance wheel type escapement, totally different than a pendulum. Have never dealt with one, so I can not help.

You can also buy a new replacement movement, if it is badly worn.

http://www.clockworks.com/hermle/340.html