Help Help setting up (Timing/Strike/Chime) on Jauch P.L.78 CM Movement

[Teetopp]

Hi everyone New member here and first time working on a clock for Mom. She received it from her brother after he passed and was pretty neglected. I took it upon myself to see what I could do since it was basically a large paperweight. I took it apart, cleaned and polished it with help from Youtube videos... put the main Movement back together (except the front and back "works") and needing help getting it back in Time. All kinds of videos out there got me this far but there's nothing I could find on setting up this particular model. A local clock shop suggested this site and was hoping I could get some help? Thank you in advance for any help you could offer...

 

[Jeff T]

put it all together and see if it goes

 

[John P]

Teetopp, that triple chimer is not the easiest one to learn chime basics.
hopefully you took lots of pictures.

If you are interested in clock repair you will have to master what you are attempting to do now.
Learn the terminology of the different parts first, we can then guide you as you go along.
David LaBounty has an excellent site to visit.
I suggest getting Chime clock Repair by Steven Conover.
The 78 is not in the book but if you study chime basics in general, you should be able to get that movement chiming properly.

Johnp

 

[JayKosta]

Does the clock run, and does it strike the hour, and chime at each 1/4 hour?

If the hour strike is not at 12 o'clock position, then remove the minute hand and reposition it. For correct hour setting, the hour hand is a slip-fit, so just rotate it to match number of hour strikes.

The chime sequence is controlled by the position of the barrel with the tabs that actuate the chime hammers. The first chime is at 15 minutes, and the barrel should be positioned so that with minute hand at about 12 minutes the 'angled straight line of 4 tabs' on the barrel is positioned to drive the hammers.
This pic is for the Jauch 77 model, but your's is probably similar -

http://users.hancock.net/jkosta/100m107.jpg

When the barrel is not positioned correctly, the wrong sequence of notes will be sounded.

 

[shutterbug]

I think the easiest way to sync the chime and strike sides is to just take the chime cam wheel off (upper right front) and let the chime run until it stops. That will be the hard stop for auto-syncing the chimes if they get out of sync with the minute hand. After it stops, put it back on at the 3/4 hour position. Put the minute hand at the 3/4 hour position as well. That should get you running. Let us know how it goes, and a short video of the movement chiming and striking would help us diagnose things. Post to Youtube and link here.

 

[Bentrider]

I found this video useful. It shows the general principles even if your movement is different.

Hang on! Didn't I just post this same reply to this same query on the Facebook Clock Repair forum??

 

[Teetopp]

put it all together and see if it goes

Thank you... I do now have it assembled and not in time though for quarterly.... The hourly chime I was just able to remove weight after it chimed 8 times, adjust the hour hand to 8pm and at a point where I am lost again I will reply to other posts and add a video of where it is at now

 

[Teetopp]

Teetopp, that triple chimer is not the easiest one to learn chime basics.
hopefully you took lots of pictures.

If you are interested in clock repair you will have to master what you are attempting to do now.
Learn the terminology of the different parts first, we can then guide you as you go along.
David LaBounty has an excellent site to visit.
I suggest getting Chime clock Repair by Steven Conover.
The 78 is not in the book but if you study chime basics in general, you should be able to get that movement chiming properly.

Johnp

Thank you for your reply I am really not interested in doing too much in the "Clock" field... I was more interested in just helping Mom get her clock going again and it just happened to be a difficult one. But I am trying to learn the parts names so I can get more help. TY again

 

[Teetopp]

Does the clock run, and does it strike the hour, and chime at each 1/4 hour?

If the hour strike is not at 12 o'clock position, then remove the minute hand and reposition it. For correct hour setting, the hour hand is a slip-fit, so just rotate it to match number of hour strikes.

The chime sequence is controlled by the position of the barrel with the tabs that actuate the chime hammers. The first chime is at 15 minutes, and the barrel should be positioned so that with minute hand at about 12 minutes the 'angled straight line of 4 tabs' on the barrel is positioned to drive the hammers.
This pic is for the Jauch 77 model, but your's is probably similar -

http://users.hancock.net/jkosta/100m107.jpg

When the barrel is not positioned correctly, the wrong sequence of notes will be sounded.

It does run now that I have it mostly assembled..(partially anyway... all but the barrel assembly. It chimed the hour 8 times, so I moved the hour hand to the 8 position and minute hand at 12... I can't move it forward (no slip, it just makes the pendulum hanger run really quick while adjusting it but will let me move it backward with the "Slip"). I am now stuck with trying to figure out the right side front ... the pins and cams trying to figure them out But TYVM!

 

[Teetopp]

I did fid this video at the beginning, but the parts are too different to reall

I found this video useful. It shows the general principles even if your movement is different.

Hang on! Didn't I just post this same reply to this same query on the Facebook Clock Repair forum??

y gain anything from it. With little knowledge and experience... its hard to figure out how to get the similarities of the parts. Mine are way different and with the notch in a cam wheel and pins stopping it hasn't made much since to me yet But ty again for your reply Yes, I just joined both groups to get as much input as I could.

 

[Teetopp]

I think the easiest way to sync the chime and strike sides is to just take the chime cam wheel off (upper right front) and let the chime run until it stops. That will be the hard stop for auto-syncing the chimes if they get out of sync with the minute hand. After it stops, put it back on at the 3/4 hour position. Put the minute hand at the 3/4 hour position as well. That should get you running. Let us know how it goes, and a short video of the movement chiming and striking would help us diagnose things. Post to Youtube and link here.

Thank you! I will get one posted to youtube here in a few and share the link here.

 

[Teetopp]

Hi everyone New member here and first time working on a clock for Mom. She received it from her brother after he passed and was pretty neglected. I took it upon myself to see what I could do since it was basically a large paperweight. I took it apart, cleaned and polished it with help from Youtube videos... put the main Movement back together (except the front and back "works") and needing help getting it back in Time. All kinds of videos out there got me this far but there's nothing I could find on setting up this particular model. A local clock shop suggested this site and was hoping I could get some help? Thank you in advance for any help you could offer... View attachment 765605 View attachment 765606 View attachment 765610 View attachment 765611 View attachment 765612 View attachment 765613

 

[Teetopp]

I think the easiest way to sync the chime and strike sides is to just take the chime cam wheel off (upper right front) and let the chime run until it stops. That will be the hard stop for auto-syncing the chimes if they get out of sync with the minute hand. After it stops, put it back on at the 3/4 hour position. Put the minute hand at the 3/4 hour position as well. That should get you running. Let us know how it goes, and a short video of the movement chiming and striking would help us diagnose things. Post to Youtube and link here.

 

[J. A. Olson]

They were among the better quality movements of the 1970's, however they are also among the more complex.

The indent cam (3rd wheel, chime train) is meant to lock the chimes at 3/4 hour, unlocking at the top of hour and acts as a form of self-correction in case the chimes went out of sync. There should be a couple small wire springs which help to keep its regulating lever lever in place. The double-locking disc is one assembly: the large end of the disc also trips the hour strike into warning at the 4/4 hour. This must be precisely positioned with the indent wheel so they lock together at the 3/4 hour - otherwise it will skip and run nonstop.

This movement needs the locking disc in place to activate and test the chime train.
The chime drum can be separately assembled and synchronized once the movement trains are set up.
Test all three chimes and the silent mode to ensure they all function.

Here are some good diagrams showing how it all looks when assembled:

Jauch PL-78 Internal Movement Internal View

griffensclocks.com

Jauch PL-78 Front Movement View

griffensclocks.com

 

[Teetopp]

Thank you sooo much! This will definitely help with learning the part names and give a hint on what they do Very grateful... I couldn't find the part "Locking Disc" ... is that the gear that joins the barrel gear?? I also have a lever that moves the barrel on the front... I am assuming that it is responsible for the "Silent" mode and 3 different chimes?? I move it and the (Top) first 3 movements do nothing... only the bottom selection will move the barrel. Mom said it has not been touched for 20+ years and worked fine till we brought it to Indiana and sat for 6 months while searching for a place for her... set it up (Unpacked) it and there were not any springs at all when I took it apart to clean it.

 

[J. A. Olson]

This is the locking disc:



The locking disc was removed in this photo.
A view of the indent cam and the two tab springs that should hook up into the chime regulation lever:



I have the same movement assembled and can take more photos if needed.
Herschede and Colonial were the two biggest companies that used these Jauch PL-78 movements.

 

[Teetopp]

Fantastic... thank you again I'll see if I can find one. Still waiting on the pendulum spring so I may as well order the spring

 

[shutterbug]

We need to see a video with you activating the chimes with the hands. Doing it manually with the levers doesn't help us in analyzing what's going on.

 

[Teetopp]

Thank you! I will get one posted to youtube here in a few and share the link here.

I think I got it, but isn't it suppose to strike at the half as well??

 

[tracerjack]

Looks like it is working properly. Chimers don't strike on the half hour, they only play a tune. Time & Strike movements will on strike the half hour.

 

[Teetopp]

Looks like it is working properly. Chimers don't strike on the half hour, they only play a tune. Time & Strike movements will on strike the half hour.

Thank you... that's what I was asking... if it "Strikes" on the half hour...as mine chimes, but only strikes on the hour... not the half

 

[tracerjack]

That’s right. Chimers play a tune every quarter hour. When the minute hand hits 12, plays the longest version of the tune, then strikes the number of hours.

 

[Simon Holt]

Time & Strike movements will on strike the half hour.

Except for those that don't strike on the half hour. For example, English Long Case clocks

 

[Mike Phelan]

Striking on the half-hour started being an European idea originally.