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Clocks, Watches/W. Haid pendulum clock

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Question
I have a 74 Haid with a 34 cm pendulum. Hermle part number is 141-030. This clock works very well when completely wound. However, it doesn't go through the complete cycle. It works for a couple days, then has to be rewound. What can I do to fix this?

Answer
Gordon, I assume that by not going through the complete cycle, you mean that it doesn't run for the full 8 days on a complete winding.  If that is the case, you are not getting enough power from the mainspring to the hands.  This can be caused by a mainspring that has not been wound all the way, lost its strength or there is excessive friction on the gear train (all of the gears).  I recommend that a clock be serviced every 7 to 10 years to inspect it for worn parts or gummy lubricants.  You did not give me a history of the clock such as you just acquired it or the service history.  If it has not been serviced in this time, I would suggest that you take it to an experienced clockmaker.  I don't really think there isn't anything you can do yourself for this problem.  If you don't know of a clockmaker near you, let me know the area in which you live and I'll see if any of my Internet Clocksmiths members might be near you, or maybe I can find someone else.

John Newman
The Village Clocksmith
Old Prattvillage
Prattville, Alabama  

Clocks, Watches

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John Newman

Expertise

As much as I would like to offer values of clocks, I am not a certified appraiser and will not venture into giving an unresearched guess. There is very little published information on what I consider to be the value of "modern production clocks". Considerations are what the clock originally sold for, the condition of the case and movement, and particularly the area in which you live, the demand and the economy. ALSO, WATCHES ARE NOT MY FIELD. However, I can advise the clock owner on proper maintenance of a clock to keep it running, small corrections and adjustments and how to move a clock without damaging it. I can also advise on obtaining parts for clocks. It helps if you can send any information on the clock movement which is usually found on the back plate of the movement. I have been a clockmaker for about 35 years and was plant engineer in the mid 90's and later operations and engineering consultant at Emperor Clock Company in Fairhope, Alabama. I now have my own clock shop.

Experience

One of my greatest accomplishments was traveling to China to assist a clock factory in building clocks to the standards which we required. With the proper specifications and quality control, some beautiful clock cases were built. The factory people from the wood carvers to the plant manager were very congenial, friendly and I left a lot of wonderful friends when I returned from my trips.

Organizations
NAWCC (National Association of Watch and Clock Collectors) 30 years Prattville, Alabama Chamber of Commerce

Publications
Horological Times, a publication of the American Watch and Clockmakers Instute. Collaberated column author, with Photos and ideas for clock movement conversion article.

Education/Credentials
Associate of Science Mechanical Engineering Technology Emperor Introductory Clock Repair (Eventually taught a portion of the class after becoming employee)

Awards and Honors
Small Business of the Quarter (Prattville, Alabama) Leadership Class of 2009 (Autauga County, Alabama)

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