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Pendulum stops within a few minutes

Greetings! I have a pendulum wall clock with exposed cogs and gears. It has worked well for some years but lately does not wish to continue 'swinging'. I suspect it may need a thorough clean. What is the best way to do this and is spraying oil into it a 'no-no'?
Regards Nita

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Spaying with oil may cause more problems than it solves, as the oil collects dust and is likely to clog the machism.

Although I have never tried it myself, I have been told that the way to clean clock mechanisms is to put some cotton wool beneath the mechanism and pour some surgical spirit onto the wool. I understand that the rising vapour lifts off the dirt.

Must be worth a try.

If this does not succeed, then take it to a watch repairer.

Good luck.

Posted on May 28, 2010

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Tip

Cuckoo Clock Repair


CUCKOO CLOCK
image004.jpg
REGULATION AND REPAIR TIPS

REF: 30 hour and 8 day clock
[From my shop notes:]
image006.jpg
{FACT}
-1/8 inch movement of the pendulum bob is equal to about 3 min per 24 hours running.
-To increase the time of the clock, move pendulum up.
-To slow down the time move, pendulum down.

Regulation notes:
These novel clocks are at best only a "fair" time-keeper. You can expect 100 to 120 sec per 30-hour winding period. I recommend that if it is within a few minutes per winding, simply RE-set the time.

-The regulation obstacles are obvious:
1. Open pendulum, this allows even the slightest breeze from a fan, ceiling fan or even cross-winds inside your house to affect both time qualities and/or its running ability.
2. The Pendulum material is wooden, and sensitive to climatic condition, during times of high humidity the clock will slow down.




REPAIR TIPS:

1. Recommend regular servicing every 2 to 3 years for these unique clocks, mostly due to the fact that the movement is open to the elements (dust and dirt is easily deposited on the movement).
2. Sometimes the clock is "over weighted", meaning that the actual weight is to heavy for the clock. I have seen some very new clocks with the wrong weights added. Instead of the clock simply stopping after the lubrication qualities are gone it continues to run and ruined the bushings.
-To find the correct weight of a newly serviced clock, you can use a small scale. Anchor it to the floor, connect chain to the top end, wind it until it is more than double the weight of the existing weights, and then start the clock to running after the clock stops running, X's the weight figure on the scale by multiplying 1.25 or 1.35 X's the weight figure on the scale by 25 to 35 % maximum = the amount needed. [Example scale indicator is on 1 lb x 25% = 1.25 lb




BELLOW REPAIR:


-Unfortunately many repair persons have opted to simply replace the bellow, this is unfortunate because it can so easily be repaired.

-I use a "RE-COVERING BELLOWS" kit.

-This kit comes with bellow replacement material, glue, one wooden handling tool and great instructions.
DO NOT attempt to simply patch work this, it is not fair to the customer and it will not work long.

THE CHAIN:

If needed, don't be afraid to replace the chain as they are easily ordered and replaced. Most cost about $3 to $4 a piece.

The problems are:

-If there is a child, pet, or adult in the house, the chain can be stretched. If the chain becomes damaged, it will get hung up inside the clock. "Even one damaged link can stop the clock."
-Wrong size chain {the differences between 72 links per foot and 67 links per foot are easily confused). Recommend actually laying the chain on the chain drive gear and seeing if it fits.


MUSIC BOX GOVERNORS:image008.jpg


Clean and oil only. Check the pivots if worn. Don't waste your time to try and repair, just replace the Governor. Only the actual music drum can be sleeved with a new bushing. Cost for a new governor is about $25. Well worth having a few assorted governors in stock.
-If a complete replacement is necessary, the cost is about $40 to $50.

Hope this tip helps.
R/ David

http://antiqueclock.clockstop.com/CUCKOO.htm


on Jan 22, 2010 | Watches

1 Answer

Pendulum wall clock from the 50's stops at 6:21


Needs lubrication in the gearing at that point most likely.

Nov 28, 2015 | Watches

1 Answer

MINUTE HAND NOR THE HOUR HAND NOT ADVANCING AS THEY SHOULD. CLOCK STUCK AT 8:45 FOR DAYS, PENDULUM MOVEMENT OK. WHAT IS THE SOLUTION TO GETTING THESE BACK TO WORK? THIS IS ON A STRAUSBOURG MANOR...


without seeing the clock .....are you sure it isn't something as simple as the hands ( arms) detaching from the centre spindle which continues to turn but without the hands. Alternatively have the hands become stuck on something on the clock face or become intertwined themselves ? Very simplistic but all I have to offer...

Feb 24, 2015 | Watches

1 Answer

Quartz president wall clock, I need to set the chime


I have a pendulum wall clock from the president collection. If yours is the same or similar, the following may help:
*Look at the back for a slide switch labled "start" at the top and "set" at the bottom and move it to "set"
*Look for for small push buttons. They represent the hours and minutes. Push each in turn, the number of pushes to represent the time, ie, for 09:45, ignore the first(0), push the second 9 times(9)-push the third 4 times(4)- push the 4th 5 times(5). When done, push the slide switch back to "start".
If yours is the same as mine - a wall hung pendulum clock with Westminster chimes, made around 1988. I would be happy to scan and send a copy of the instructions.
John

Apr 21, 2010 | Watches

1 Answer

Pendulum in beat but stops running after a few


CLOCK OILING TIPS * NOTE: Many Master Clock Smiths and Hobbyists used many different oils and as many different techniques.
* It is only good sense to use only the best in quality when selecting clock oils and grease. A number of fine oils are made especially for clocks. The oil used should stay in place and not evaporate easily and have no tendency to gum or get sticky as it ages. Most clock oils meet these standards. [CAUTION: Never consider using non-clock lubricants, as they tend to not really work well in clocks. Some are too light and cause unnecessary bushings wear, while others are too thick or can evaporate, over time will gum up and stop the clock prematurely.]

Oiling Procedures
-Main-springs are oiled after cleaning and before they are recoiled.
-Teeth and pinions are never oiled.
-Normally, the dial train of gears, hour wheel, minute wheel and minute wheel post are not oiled. However, oil is used between the center shaft and cannon pinion where slip friction is present in setting the hands.
-All points of friction such as train wheel pivots to bushings are oiled. Verge faces are oiled directly.
-Oil is always used sparingly and should never run all over the plates.

Hope this tip helps.

R/
DAvid

http://antiqueclock.clockstop.com/oil.htm

Feb 08, 2010 | Watches

1 Answer

I have a forestville wall clock with the pull down weights. when it chimes it is behind in time. example nine oclock chimes seven oclock, it is a made in germany clock but what year i do not know. there...


Stop the pendulum of the clock exactly at any even hour. Lets say at 6.00. While clock is steady and not working, pull off the minute and hour hands off the pinion, but do not brake them. You have to pull without any twisting action. This will leave pinions exactly in place they were when you stopped the clock. When it is done - push the hour hand back onto the pinion and make sure it is pointing at 4 (not 6, as it was when you stopped the clock). When hour hand is back in place and pointing at 4, push back minute hand as it was when you pulled it off - pointing at 12. Make sure hands will not catch when passing each other (you can bend them slightly if needed). Now swing pendulum to start the clock and adjust time (clockwise only). Never adjust time when clock is chiming. Rate me, plz.

Feb 02, 2010 | Watches

1 Answer

Bakelite antique mantle clock just bought, but no instructions of how to get it going. Ive got the key and pendulum but dont know how to set it up. Can you help?


First you have to wind up your clock using the key supplied. The pendulum suspension spring should start to swing quite fast. Stop it swinging with your fingers and hook up the pendulum. When done, push the pendulum to whatever side and release it to start the swing - the clock should start ticking in normal order. If there is no special bar on the back of clock movement for adjusting hands, then hands must be adjusted from the dial side by moving minute hand clockwise. Move the minute hand with your finger clockwise to the desired time, at the same time do not catch hour hand, as this may end up with the incorrect time displayed. Rate me, plz.

Jan 28, 2010 | Watches

2 Answers

My wall clock runs about 10 min utes fast per 24 hours. I has a pendulum with an ajustable screw at the bottom. Can I turn this screw to adjust the running time. If so, which way (shorten or lengthen)?


You have to lengthen pendulum as this will make watch tick slower. Can not say for how much as for every particular clock there are different adjustments.
Do it bit-by-bit unscrewing the screw thus lowering the bob. Observe time keeping day-by-day and eventually you will reach the right length of the pendulum for precise timekeeping.

Rate me, please.

Aug 21, 2009 | Watches

2 Answers

I inherited a grandfather clock which runs slow


You have to adjust the bob on pendulum. If the clock is slow, the bob on the rod must be pushed up. If the clock is fast, the bob must be pushed down. Do adjustments bit by bit, day by day till the clock is keeping time. If all this does not work, you may need to replace suspension spring (if there is any). If there are no suspension spring, the clock may need proffessional attention.

Mar 23, 2009 | Watches

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