Midwest Clock Repair

Hermle Repair / Rebuild Service For 341-020 Clock Movement

This Hermle rebuild service is for the 341-020 Westminster Chime movement.

Please Note:
This is a clock repair service for you to send me your clock movement to be rebuilt and then returned to you. 

Qualifying movements include; 341-020, 341-021, 341-023.
Hermle made Seth Thomas movements; 401-000.

Don't see your clock movement listed?
Send me a picture of it. I will either direct you to the correct rebuild service for your clock movement, or, I will send you a quote if I do not have a rebuild service already available

The listed price of $175.00 includes the following:
Any bushings the clock movement needs.
This clock movement will receive at least 20+ bushings.
Cleaning and oiling the clock movement.
Cleaning and oiling the springs.
Regulating the clock movement to keep good time.
Three year warranty on bushings and labor.
Return shipping is included in the price. 

If you have any unusual damage such as stripped teeth, broken pivots, broken springs, excessive rust, etc., please contact me before purchasing this service.

When I receive your clock movement:
I will inspect it for any of the unusual damage that is listed above. If any unusual damage is found, I will contact you with an explanation and a price adjustment before proceeding with the rebuild. If you find that the price adjustment is not agreeable, I will return your clock movement to you and issue you a refund, minus the cost of return shipping.

My average turn around time is around 60 days or so from the day I receive your clock movement.

Packing Instructions:
Please follow the packing instructions to ensure that your clock movement arrives safely and undamaged. Please wrap your clock movement with several layers of bubble wrap. Place your clock movement in a box that is large enough so that it is completely surrounded with tightly packed packing peanuts.

Please contact me if you require assistance removing or reinstalling your clock movement from its case. We can arrange a time to discuss it over the phone.

Please be sure to include the hands, pendulum, and pendulum leader with the movement.

How a Clock Movement Wears.
This Hermle Clock Movement is made up of two brass plates with 3 springs and 15 gears between them. Each gear shaft has two pivots at either end that ride in a hole in each of the plates. As the mechanism runs, the pressure from the spring turns the first gear in one direction, that gear turns the next gear in the opposite direction, and so on. Which ever direction the pressure presses the gear to run, the pivot holes in the plates will wear in that direction. The more the holes wear, the more the gears drag as they move out of alignment, and the more power the movement needs to continue running. Eventually the movement wears to the point that the spring cannot supply enough power to run the clock. At this point the movement will need to be rebuilt.

How the Clock Movement is Rebuilt:
First, the clock movement is completely disassembled and ran through the cleaner. Next, all the worn pivot holes are realigned and then drilled out to the proper size of the bushing it is to receive. The bushings are then pressed into the holes and touched up with a bushing reamer, as needed, to provide adequate clearance for the pivots. (I use only high quality KWM bronze bushings) The springs are stretched while being scrubbed clean, and new spring oil applied. (Any springs that 
do not pass inspection will be replace with another good used spring) The movement is then oiled, reassembled, and thoroughly tested.