Improved Balance on Hermle 340 clock movement series. The old style balance units such as the 340-020 had a spiral spring vertical up the balance. The improvements on the new style will be a horizontal spring and the F / S adjustment is by a set screw. The timing will already be done at the factory anyways so setting the time will only be slight. Here is a demo of a post-op test-run of a Hermle 340-020 mantel clock mechanism. The clock has been serviced routinely, however, the chime train third and fo. The following is a diagram of the Hermle mechanism w0340. This depicts the top of the movement, around the balance wheel and escapement. Turn the Regulating spindle in very small increments (less than 1/16th of a turn) to adjust the timekeeping. Turning the spindle clockwise will slow the clock down, counter-clockwise will speed the clock up. 451-050 and the 451-053 are only rivaled by the 340-020 mantle unit for quantity produced. A Hermle 451 Series clock movement will work for 25 - 30 years night and day with out much complaint. Hermle 340-020 NB FHS Hermle Mechanical Clock Movement. The plate size measures 100 x 100 mm and has a 33.2 mm hand shaft length. The Hermle 340-020 NB features an 8 day Westminster Chime, key wound, 9000 BPH, balance escape.
- Hermle 340 020 Parts List
- Hermle 340-020 Service Manual
- Hermle 340 020 Movement Diagram
- Hermle 340 020 Movement
- Hermle 340 020 Repair Manual
This Rebuild Service Is For The Hermle 340-020 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.
Please Check My -Frequently Asked Questions- Page Or Contact Me With Any Questions You May Have.
Hermle Movements Include; 340-020, 340-021.
Seth Thomas Movements (Made By Hermle); 208-013, 401-003, 401-004, 401-005, 450-009, 497-212.
Don't See Your Clock Movement Listed?
Send me a picture of your clock movement. I will either send you a quote or direct you to the correct rebuild service for your clock movement.
The Listed Price Of $195.00 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.
Seth Thomas Movements (Made By Hermle); 208-013, 401-003, 401-004, 401-005, 450-009, 497-212.
Don't See Your Clock Movement Listed?
Send me a picture of your clock movement. I will either send you a quote or direct you to the correct rebuild service for your clock movement.
The Listed Price Of $195.00 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.
Payment Options Include; Credit Cards, Paypal, Or Check. (Please Make Check Payable To -Brian Scobee-)
Other Possible Repair Issues Not Included In The Price:
Damaged Or Broken Parts Such As; Teeth, Pinions, Pivots, Springs, etc. Damaged Balance Wheel Assembly. Excessively Rusty Or Tarnished Parts. Any Parts That Are Missing.
When I Receive Your Clock Movement:
I will inspect it for any extra repair issues such as those listed above. If any of these issues are 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 60-90 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 with the movement.
How The Clock Movement Wears.
Transtype 4 mac serial numbers. 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. The movement is then oiled, reassembled, and thoroughly tested.
The following is a diagram of the Hermle mechanism w0340.Other Possible Repair Issues Not Included In The Price:
Damaged Or Broken Parts Such As; Teeth, Pinions, Pivots, Springs, etc. Damaged Balance Wheel Assembly. Excessively Rusty Or Tarnished Parts. Any Parts That Are Missing.
When I Receive Your Clock Movement:
I will inspect it for any extra repair issues such as those listed above. If any of these issues are 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 60-90 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 with the movement.
How The Clock Movement Wears.
Transtype 4 mac serial numbers. 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. The movement is then oiled, reassembled, and thoroughly tested.
Hermle 340 020 Parts List
This depicts the top of the movement, around the balance wheel and escapement. Turn the Regulating spindle in very small increments (less than 1/16th of a turn) to adjust the timekeeping. Turning the spindle clockwise will slow the clock down, counter-clockwise will speed the clock up. Be sure to reset the hands each time you make an adjustment.
Our Sternreiter Brahms tambour and
Hermle 340-020 Service Manual
SloanHermle 340 020 Movement Diagram
bracket clocks are equipped with a manual shut-off lever for the chimes.Hermle 340 020 Movement
![Hermle Hermle](https://www.clockworks.com/pics/pics-hermle-clock-movement/340/340020ks.jpg)