Help needed with fusee movement

[Rixy]

I have been asked to look at a clock for a friend. He says it runs quite well when partly wound but does not run for long when fully wound. It is a fusee movement and I have never had a go at one of these so would appreciate any advice. I have read that it must be let down by removing the pallet and allowing it to run. Is this correct? Do you think I should clean the parts in an ultrasonic cleaner?

Have attached photos if that helps.

All advice is much appreciated. 

[oldhippy]

First of all this has had a service not that long ago. The movement is clean and the steel pins are new. From the photos I can see that there is a lack of oil on the escape wheel and the pallets. Make sure you have oiled all the pivots first, then remove the pallets and let it run down. There isn't that much power on as the fusee cone has most of the chain on it. Never use an ultrasonic on clock of this age. Check the two screws that screw the pallets to the crutch, if they are not tight they will cause a poor action enough to stop the clock. Are you sure it is in beat and that the wall is flat up against the back of the case. Clock movements that are clean usually mean trouble so look for worn holes, bad pivots, make sure all the wheels run true and check all the teeth. Barrel and fusee holes and pivots I know they are big but check for roughness and fitting. Look at the chain are all the links free and in good order. The spring should be removed so a good mainspring winder is needed so you can check it. I t could be warped  or tired. 

[Rixy]

Thanks OH. Especially about not putting it in the ultrasonic - I had a feeling it would be best to avoid doing that. I'll check over those things and see how we go. You could be right about it not being in beat - there are wall fixings on the base that he said he didn't bother with.

I'll update as I go along.

[transporter]

Let us know, I done one very similar not so long ago for a customer, had it for about a year but finally got it going again, search for the post I done on it, especially the damage caused by ultrasonic cleaning

[Rixy]

Well I took it apart and cleaned it all by hand (nowhere near the ultrasonic!) and reassembled it. Had to do a bit of research on how to reattach the chain but got there in the end.

Oiled the chain, checked the mainspring (it seemed fine) and oiled the pivots, the escape wheel and the pallets. Loaded a half turn on the mainspring and secured the click. Have set it up for testing and it has been running for about 3 hours now. So far so good...

[oldhippy]

I notice the pallets are of center to the escape wheel, have you noticed that? When it comes to oiling the chain I would just wipe it in oil just a few drops on a clean cloth. The finish looks good. 

[Rixy]

Thanks. Yes, I noticed the pallets were off but didn't know if it was worth trying to move them along - do you think i should? The clock is still going after 24 hours

[oldhippy]

If you push the pallets right over against the pallet cock are the pallets still catching the escape wheel teeth. Or are the teeth just catching if so this can cause wear on just part of the teeth of the escape wheel, you need to move the pallets over.

[Cihan]

Arkadaşlar, bu mekanizmalarda hangi yağları kullanıyorsunuz?

[oldhippy]

Cihan, please type in English. Thank you.

[RichardHarris123]

Just now, oldhippy said:

Cihan, please type in English. Thank you.

He asked what oils do you use. 

[oldhippy]

I know. This is an English speaking and typing site. That is why I have asked to type in English. 

[Cihan]

On 8/27/2023 at 11:15 PM, Rixy said:

Onu parçalara ayırdım ve hepsini elle temizledim (ultrasonun yakınında hiçbir yerde!) ve yeniden monte ettim. Zincirin nasıl yeniden takılacağı konusunda biraz araştırma yapmak zorunda kaldım ama sonunda oraya vardım.

Zinciri yağladı, ana yayı kontrol etti (iyi görünüyordu) ve pivotları, kaçış tekerleğini ve paletleri yağladı. Ana yaya yarım tur yüklendi ve tıklamayı güvence altına aldı. Test için ayarladık ve yaklaşık 3 saattir çalışıyor. Şimdilik fena değil...

Hello. What oils did you use in this mechanism?
What is the recommendation for the winding spring specifically?

[oldhippy]

The best oil to use is Windles clock oil. It is that good it is the only one you need for movements such as this. If you need any more help just ask. 

Thank you for using English.