Wurlitzer Lyric E 1964-1965

Hi
Working on this machine and have a problem with selections being repeated over and over. The selection pins have been cleaned and are not bent or dirty. After a selection is made the crank arm searches, the pin at the end of the crank arm finds the selection, the crank arm micro switch is actuated and record is loaded and played but keeps repeating. What i notice is that the crank arm after it meets with a selection pin it jumps back about 3 mm. However the crank arm is able to cancel the selection pin so it doesn't jump back too much but the micro switch on this assembly is not releasing . If i push the crank arm slightly forward after a record has been loaded i can hear the switch being released or if hold the crank arm/searcher tip at the selection pin during the search process the micro switch will actuate and release and the record will not repeat From any wurlitzer i have seen i think the crank arm searcher tip should be nice and tight with the selection pin when it meets it and not jump back. To me it seems that the crank jumping back that small distance is enough to prevent the micro switch being released(green switch in photo four).
Is there any common problem that could cause this maybe the back stop pawls on the record carriage. I hate to adjust anything on these wurlitzers until i check

Hi Clones,
I never worked on a German built unit --but this appears to be the same as the US built units. On the US built units, the crank arm butts up against the selected pin, pushes it down, and "jumps forward", clear of the pin it just lowered, NOT back, thus releasing the switch. The US Service Manuals explain how this is accomplished.
By chance, does this happen on both sides of the record ? I'm thinking one "backstop pawl" is failing ?? Ron Rich

Ron
It happens on both A and B side. Crank arm is definitely jumping back, if it only just kept tight with the selection pin there would be enough there to let the micro switch release
Clones

Hi Clones,
Dono what else to say--if the German manual does not cover that, you might check a US manual for about the 2500-on up to 3300 models?
Ron Rich

Clones,
Just a thought--if, with no pins released, you push "back" on the crank arm, it should actuate the switch and spring forward--does this happen there ? ( Broken spring?) Ron Rich

Ron
Will check this out later
Clones

What I think you are looking at is a broken or missing spring on the lower crank assembly.

Here's how at least the how American version works; When the crank hits a pin the reversing switch is actuated but the carouse coasts about ½" beyond the actuation point before it reverses. This is to be sure the pawl has fully engaged the tooth. Since the lower crank is closely coupled with the one under the carousel it too reverses -but normally a spring keeps the crank tip against the pin until it is pressed down and reset. This also accounts for the switch never being released.

Here is an exploded diagram of the American 2150 -it is a 200 select but you can see the general vicinity of the reset spring at item #15

http://s1192.photobucket.com/user/Rob-N ... ort=2&o=93

I should have a 104 diagram in the binder..I'll look and scan it when i locate it.

The European versions of these mechs took a few liberties in the name of simplicity and economy. IIRC: One was a line-powered changer motor (oh joy, 220vAC on the switches) and the amp were way simpler and lower powered...no AGC either.

Rob-NYC

Hi
Ron-the crank arm is not inclined to move the other way but doesn't spring back
Rob-NYC thanks for the info, I will check it out and get back to ye
Clones

Hi Clones,
OK--I'm confuzzed ??
If you push the arm "back" (opposite direction from which it normally turns, while searching for a released pin), it should activate the switch that starts the record lift process ? Is this not happening ? Ron Rich

Hi Ron
Yes should have said that sorry thought you meant when machine was turned off, but when the machine is searching if you push back it will operate the lift process
clones

Hi Clones,
No, I was concerned when the phono was turned on--but NOT "searching"--just waiting for a pin to be released--At which point one should be able to push back on the arm have the motor start (due to switch being closed), and the arm should "spring back" to its original position, as you let go of the arm. ( I was thinking the same as Rob--spring( item 15) is missing/broken ?)
Ron Rich

Hi Ron
see what you mean will update on progress tomorrow
Clones

Hi
I checked out the machine when it was switched on and pushed the arm back to start the motor, motor started but the arm didn't spring back. I don't think any of the springs are missing. I have attached photos showing the springs beside the kicker and near the microswitch which I think is item 15 in the parts photos Rob posted. Maybe it might be a case of putting better springs in so it has enough momentum to spring back. It doesn't take a lot of force to move the arm back to disable the micro switch. I will post a link later giving a 30 second clip of the crank arm in operation showing exactly what I mean. The first picture is of the spring nearest the micro switch and the other is the spring beside the kicker(sorry its a bit blurred)
clones

Hi Clones,
IMHO, either the wrong spring has been installed or some "person" mangled the spring, for some unknown reason--You might try shortening it slightly--just enough so the crank arm springs forward, when you push it back (Power OFF). You don't want excessive force there--only enough so the arm "jumps" past the pin, it has just pushed down--too much pressure, and the arm will "stick" to the reset pin ! Ron Rich

Thanks Ron, should I try with both springs or just the one nearest the micro switch
clones