You are here:

Clocks, Watches/341-20 movement - constant strike


341-20 movement
341-20 movement  
I have a Hermle 341-20 movement, which has just been moved.  When I set it back up it was fine until it hit the hour, then instead of the eight expected number strikes for 8pm, it kept striking continually.

Ive tried stopping and restarting the pendulum, and moving the hands to the next hour but the problem persists, on each hour the hammers just keep rising and falling striking the rods continuously.

see arrow on the photo - the horizontal brass lever has to drop and lock on the edge of the rond brass cam when the hour is supposed to stop.

the round cam to the right of it with 4 lobes needs to be in position to allow it to drop also --the set screws holding either cam on their shafts may be loose? and need re-positioning.

Clocks, Watches

All Answers

Answers by Expert:

Ask Experts


Kenneth Saunders


any mechanical clock question -no watches- no battery clock questions and no appraisals-ie: "how much is my clock worth?" type questions please! Attach a photo if possible and note all markings on the rear of the mechanism- thanks 40 years as a professional clock repair person- still a full time clock repair service owner


43+ years as a professional clock repair person- still a full time clock repair service owner.



Awards and Honors
Comment - On a scale of 1-10, I would give Mr. Saunders a 15 on each category. His responses were clear, addressed my questions and concerns in a way that even I could understand, and even sent a picture. He explained what I had and how to resolve the issue. I was amazed at how quickly he replied to each on my e mails. He shouldn't get a gold star, he should get a whole box of them!!! Thank you Mr. Saunders, I will keep you on my e-mail "speed dial". Comment - Ken answered my question regarding how to adjust the proper striking of the hammers on my Grandfather clock within a few minutes of my sending the question to him. He answered my follow-up question the next morning. I would rate him higher if there was a number larger than ten in the selection box. Thanks again Ken Comment - I RECEIVED AN ANSWER WITHIN AN HOUR.OUTSTANDING SERVICE.YOUR RATING SHOULD BE HIGHER THAN 10. Comment - This Man is Fantastic...there is no Scale for a him...if there was...He'd beat the top of Smile....I could never ask for more ....this Man is his Score....

©2017 All rights reserved.