100R rebuild continues

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catboxer
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100R rebuild continues

by catboxer » Thu Oct 23, 2014 7:44 am

Since I've moved past rebuilding the amp and receiver, I figured I would start a new thread. Today I removed the clutch and cleaned it with degreaser and applied SAE20 to all lubrication points on the mech. I also had removed the rack and pinbank to get to the clutch. After reinstalling the clutch and record rack the general operation of the mech is much smoother. Lastly I adjusted the reverse switches according to the service manual. Unfortunately I seem to have just created more problems.

Now only a few selected songs will actually fire the trip solenoid and stop the mech for play mode. As it passes the selection the pinbank is firing a solenoid but it does not stop and continues to search. It seems to do this on both odd and even selections. Only a few selections will actually stop to pickup and play.


Ron Rich
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Re: 100R rebuild continues

by Ron Rich » Thu Oct 23, 2014 5:30 pm

If you had purchased and read my "Seeburg Mechanism Guide", I don't think you would have removed the record rack, just to remove the clutch---
Usually the selection problem you are having is caused by the "W" contacts--clean, adjust them to specs. as per the service manual, and see what happens--if that "don't do it"--re-post this--
Ron Rich


Topic author
catboxer
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Re: 100R rebuild continues

by catboxer » Thu Oct 23, 2014 5:51 pm

Here is a video of this problem. Of the 10 or so selections I've entered, it will only stop at D5 (not D6) and J9. No evens but also skips some odds. http://youtu.be/HO_1ce-9jyA Thanks for any help.

*Edit: just now seeing Rons response above, will check the W. I saw in the service manual it was possible to take it off the end of the track, maybe you have an easier way. But on the bright side I was able to clean the record rack with it removed.


Ron Rich
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Re: 100R rebuild continues

by Ron Rich » Thu Oct 23, 2014 5:58 pm

What is "clicking" as it passes the selected pins ?
Ron Rich


Topic author
catboxer
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Re: 100R rebuild continues

by catboxer » Thu Oct 23, 2014 6:04 pm

Double checked the W contacts are clean and shiny, gapped in play and firmly closed in scan. Only getting some Odds and no evens.
Last edited by catboxer on Thu Oct 23, 2014 6:17 pm, edited 1 time in total.


Topic author
catboxer
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Re: 100R rebuild continues

by catboxer » Thu Oct 23, 2014 6:17 pm

The clicking is the popularity/lamp mechanism.


Ron Rich
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Re: 100R rebuild continues

by Ron Rich » Thu Oct 23, 2014 6:24 pm

It SOUNDS as if it might be both the cancel, and pop meter solenoids are firing--this should NOT happen as it detects a pulled pin.
This indicates to me that you have "shorted" or mal-adjusted "V", "IC", or "S-SC" contacts. The other thing you video seems to indicate, when it does detent, over and over at the end, is that the contact block on the SA Unit, is not aligned correctly.
Ron Rich


Ron Rich
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Re: 100R rebuild continues

by Ron Rich » Thu Oct 23, 2014 6:48 pm

CAUTION !!!
Do NOT allow the cancel/pop meter coils to fire for any longer then what you can now hear. The cancel coils WILL burn up, if fired too long or often (in a row). These are intermittent duty coils, only--so allow them to cool off, while you are "playing around"-- Ron Rich


Topic author
catboxer
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Re: 100R rebuild continues

by catboxer » Thu Oct 23, 2014 7:12 pm

I don't think the popularity meter has ever worked correctly in this machine. The dials never move. If the popularity solenoids go out, what affect would that have aside from rendering the pop meter useless?

I'm going to pull the mech out and realign the SA contact block. I did have that out to clean the pin side and the internal contacts.


Ron Rich
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Re: 100R rebuild continues

by Ron Rich » Thu Oct 23, 2014 7:59 pm

I can almost "guarantee", due to the audio I heard, that the pop meter solenoid IS working--The rubber "dial pusher" is probably worn out-as are most of them by now, so the dials don't turn---
Other then the fact that you can't determine "popularity"--nothing ! Ron Rich


Topic author
catboxer
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Re: 100R rebuild continues

by catboxer » Thu Oct 23, 2014 9:12 pm

That's good to hear. I took the top off the popularity dials and took a look. The dials were a little sticky so I exercised them until they moved freely and also adjusted the rubber roller and stop pins according to the manual. It seems like the shaft had shifted and it was "making" with 2 dials at once. Hopefully it will work now. On to the SA issue...


Topic author
catboxer
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Re: 100R rebuild continues

by catboxer » Thu Oct 23, 2014 11:52 pm

I removed the selector contact block and I have a question... Looking at the manual pg 2151 I can't tell if the back of the contact is always supposed to be in contact with the switch. My contacts are all permanently touching the switch (manual calls it a spring?). Is this correct? I would have assumed these should be normally open and then closed by the pin of the selected track. Also no sure what it means by "Dressing and selector contacts should move of their own weight with no spring pressure."

Image


Ron Rich
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Re: 100R rebuild continues

by Ron Rich » Fri Oct 24, 2014 12:02 am

This is NOT your problem --
Yes those are "springs" and must be re-formed (NOT "bent" !) to make tight contact, with whatever they are "pushing against", at all times. Ron Rich


Topic author
catboxer
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Re: 100R rebuild continues

by catboxer » Fri Oct 24, 2014 5:14 am

Thanks Ron. I took the SA block springs out and reformed them with the needle nose. They had good tension again and I moved on to aligning the SA block.

The skipping of selections was definitely the SA block alignment that caused it to not stop on selections. After trying 4-5 times with various improvements I finally have it aligned. The instructions in the manual were helpful, but what really worked for me was sending the mech to K10 and A1, and verifying at each end, that the cancel solenoid worked. I did this by gently moving the solenoid manually with a small screwdriver.

The bad news is it is once again it's not canceling selections. I have gone over that vertical switch stack 3-4 times and I'm more sure now than ever that it's adjusted correctly. Before I was having issues with the C/SC contacts, but after following the adjustment steps in the manual I adjusted them to spec and now get the appropriate make/break. If there is no record it attempts to load the selection over and over and if there is a record it will play it forever in loop. The popularity solenoid does fire as the record begins to play, is this also controlled by SC and C contacts? If so, that would indicate the switches are working.


Ron Rich
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Re: 100R rebuild continues

by Ron Rich » Fri Oct 24, 2014 6:11 pm

Torin,
You are chasing rainbows--it is supposed to return to any un-played record, and try again --PLEASE, RTFM, or my Seeburg Mechanism Guide" Ron Rich

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