1910 Junghans B10 Mantel Clock Restore for Alex #5 

Thanks Mark.

Great to hear that, they are a nice clock.

Thanks

Wish you all the luck on yours clock. They are good movements...

​@@jamesmartin5370 have been able to get my clock running again, in large part due to your video - thank you! However I have encountered one last problem that has me baffled. The clock chimes about 3 minutes early. As you probably know from the Junghans you worked on in the video, you can't change that by adjusting the neck of the center of the minute hand like every You Tube video I have found suggests. The Junghans minute hand doesn't have a neck; just a square hole that fits on the square top of the hands shaft. I can see no way of adjusting the Junghans to chime at a different time. I would appreciate any suggestions you may have that I can try. Thanks.

@@Silvamorde2004 Real gald you got yours running, I sure like the chimes in these. It sounds like the relationship between the trigger arm that triggers the chime and the pin on the back of the hour wheel is incorrect. You will need to trouble shoot several items then decide which action to take to solve the issue. I suspect the hole in the front plate the center wheel goes through is worn. And also the fit-up between the hour wheel and center wheel arbor may have some wear on them. Try putting some pressure on the center shaft and you may find there is considerable side shake in it. Also put some pressure on the hour wheel tube. Hold some pressure on the hour tube, away from the worn direction and slowly rotate the minute hand holding pressure on it, it may chime closer to the correct time. If this is the case a bushing will help. Or the pin on the back of the hour wheel or the trigger lever that rides on that pin could be modified to hold the trigger lever slightly longer before it drops off the pin. Let me know what you find out

Thanks for the feedback.

Thanks Gerry, I enjoy keeping these in shape for the owners.

Thats great, I am sure you will enjoy them.

Thank you!

Thanks for your comment, these Junghans have great high quality movements, pinions and pivots are very hard and wear for many years.

These are great movements to restore.

Agreed with your comment about the fabrication. I wondered too how he did it.

Here is another craftsman making a wheel. He is unconcerned about the viewer's attention span. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-XjGQLns7VHk.html&ab_channel=TommyJobson

Thanks Jim, I can replace damaged teeth in gears, this is hand work. I am not set up to cut steel pinions complete or cut gears complete. The steel pinion and barrel gear were damaged beyond repair to be structurally sound so they were sent out to another individual to be made. Best Regards, Jim

Thanks Don, Glad there was enough information to be of help.

Thanks Gayle, I enjoy working on most all vintage items.

Muito obrigado

Thank You

Soft leather helps for a deeper sound of the chimes.

I heard the hammer bounce on the hour strike too.

They are well designed movements. A lot of variations of cases to choose from.

Thanks John, Its always nice to get these old clocks brought back to life.

@@jamesmartin5370 Hello James, the video was most interesting to me for the following reason. I have a schartzwald cookoo clock, bought may years ago in Freiburg Germany while on holiday there. One of the chains slipped off the wheel, here where I live in Argentina, ( I'm Scottish) there's an old clockmaker here in Cordoba who stripped and oiled my clock, did a first class job, keeps perfect time, very reliable. It plays two tunes, The Happy Wanderer, and Eidelwise. So your videos are very interesting to me being a long retired engineer, turner/miller. I appreciated your answer, please take care during these trying times, God Bless.

I hear there are a lot of these in and around Germany.

@@jamesmartin5370 UK me. My uncle was given it by his 1st employer must have been in the 1940's Not a bad leaving present for a young Welsh border farm hand aye ?

Take your time with it and you should do just fine.

Well, one piece at a time and it will all come together in the end.

@jamesmartin5370 it's junghans b13. That's what it says on back of mechanism. However googling junghans b13 brings up different designs to mine. But.... ive managed to get it back together, and now know where it all goes. But I need a new main spring, and one of the locating pegs on one of the cog shafts have snapped. Looking for a way to round it.. maybe the lightest of tig weld and shape... but its such a thin shaft.. I'll leave weld as plan b. Currently looking for a replacement part.

Id be glad to take a look at it, contact me at: jamesmart55@hotmail.com or 509-868-2499

Non, je n'ai pas.

Gracias, Vivo al norte de usted en el estado de Washington. Gracias

Tough not being able to physically inspect it for defects. For starters: Mainspring for chimes may need to be cleaned and fresh oil put in. First check all the moving points of the chime train for wear and condition. Check condition of the oil on all those moving points. As a general rule, all rotating points or pivots should be oiled. All points that slide against each other should be have a light grease applied. A broken chime rod should be replaced. The material is usually rock hard and can't be re-attached without messing the tone up. The broken one to my knowledge can't be brazed to the other piece without softening the metal and this will change the tone. I don't know of any glue that will work either, still the tone will be off. I would either replace that rod or order a new set. You may need to tune the new rod. To sharpen, file end of the rod, to flatten it, file it thinner near the screw.

Chime silent lever lifts the hammers away from the trigger levers. The snail on the front of clock the hour hand connects controls the hour strike. The 15 minute tick, there is a cam mechanism located on the back side of one of the gears just behind the hour wheel that a lever contacts.

The pliers are handmade to a certain degree, I modified a pair of regular pliers to get them.

I thought they maybe hand made, I will be making my own just like yours, very handy tool to have

They are a pair of needle nose plyers I modified years ago. I know of no way to safely knurl the brass without backing up the piece of brass, these plyers work great for this. Do you have the ability to fabricate a pair of knurling pliers?

The hour hand on the above movement is friction fit, Yours should also be the same style.

@@jamesmartin5370 Thank you very much.

Thanks, First check the governor fan clutch. Where the fan is mounted to the arbor, the joint is friction fit. This is the clutch mechanism, designed to slip at a certain stress level from the air resistance against the fan blade. If fit-up is too loose or there is oil present at this joint, the clutch action will engage too early and allow the arbor to spin too soon, this causes gear train to run too fast. If this is not the cause. Is it possible sometime in the past a mainspring that was too strong was installed or the fan blade on the governor was altered?

@@jamesmartin5370 Thank you for excellent response first chance I'll check this. Obviously not knowing its previous history it could well be a too strong mainspring and if this is the case I'll not lose any sleep over it. I'll let you know how I get on. Keep up the fantastic work👍

gtatiful cho những lời tử tế của bạn

I fabricate most of them. Some I have other clockmakers fabricate. This is sometimes faster than attempting to find a match for a parts movement.

Not familiar with those, I would need to physically take a look at it to determine best process to use on them.

@@jamesmartin5370 is there a way to contact you outside of YT (email?) so I could send you the photos?

@@Kitzkrieg Sure, jamesmart55@hotmail.com

Yes, my email is jamesmart55@hotmail.com

I picked this set of 8 up in the 1970s when I started in the business. Mine are a K & D set No. 268, Non-magnetic, Hardened Beryllium Copper Blades. Sets and replacement Blades are still available at some supply houses: www.jewelerssupplies.com/shop-bin/sc/productsearch.cgi?storeid=*14884f2cab1d40e71cd4468d www.esslinger.com/individual-horotec-mini-non-magnetic-screwdriver-w-beryllium-flat-head-blades-0-50mm-3-00mm/?gclid=Cj0KCQjw0caCBhCIARIsAGAfuMyQE6bc1mfXI6xPS_J9TluXjdEredFdPODAzkvq-8lhCv6bvfZYjFwaAvmVEALw_wcB

I am in Washington State. Yes, I do work for individuals all the time. You can contact me at jamesmart55@hotmail.com. There's a small write-up about my work at: www.whitmancountyhistoricalsociety.org/clockrepair

@@jamesmartin5370 Great im in Lewiston Idaho just over the border of Washington

@@lindler56 Its a small world! I am in Spokane Valley, about 2 hours drive. I have several references down your way if you want to talk to them let me know.

@@jamesmartin5370 Email sent

I don't have a supply of used parts. I generally rebuild, fabricate or have someone fabricate needed parts. Another option is purchase a used parts movement, but then sometimes its difficult to locate the same model that doesn't have the same wear on parts needed.

Not sure. I have never done any research on any chime rod manufacturers. Let me know if you find out. Thanks...

@@jamesmartin5370 thank you for replying i did a little research couldn't find anything yet

Thanks James...