Rock-ola 449 Free Play

[rrh]

Hi All,

The 449 I purchased last week is set on free play and I would like to reverse it so I can see if I can get the coin mechanism functioning that I added. However, I am having difficulty understanding how the free play was set so I can attempt to reverse. I checked the subtract relay that Ron mentioned in an earlier post but that component seems not to have been repositioned. The selector solenoid doesn’t seem to altered either. It rotates thru during the selection process and then resets to original position. 

If if anyone has any suggestions on how they might have done it, it would be greatly appreciated. (The person I bought the 449 from has no clue).


Thx for the help.
Randy

[jukenorman]

Hi Randy,
It will be something on the subtract relay that will have been "adjusted"! The actuator pawl may have been bent out of position, it may have even been removed or it may have been held back using a small cable tie (which is what I usually do).
Norman

[rrh]

Hi Norman,
Thx! It looks like they backed the screw out to keep the paw from engaging the ratchet. As I move the screw in, should I move the paw until it is fully engaged to the ratchet or should I leave a small gap between the paw and the teeth?

Thank you so much!
r

[jukenorman]

Hi Randy,
I am not clear as to which screw you are referring and I don't have one of these credit units to look at. When the reset (subtract) solenoid energises, it (does two things - operates a micro switch via a pivoted bracket - this applies to a 459 but not a 449, my mistake) retards the ratchet one tooth. You should be able to manually operate the solenoid to check it operates freely.
Norman.

[rrh]

Hi Norman,

Thx again for your feedback.

I have posted a video clip via dropbox for clarification of what I was referencing in my last post.

When I thread the screw in further to close the switch in the reset mechanism, the paw moves in close to the ratchet wheel and "free play" is eliminated as desired. However, when I either activate the credit switch or drop a quarter into the coin mechanism I just installed, a switch on the accumulator assembly disengages the pin from the ratchet wheel as shown in the video but that is it.....no other mechanical movement inside the credit unit.  BTW - The ratchet wheels in the accumulator are all moving freely. I am assuming that the ratchet wheels should be indexing based on either activating the credit switch or accepting the credit from the quarter. Then, the paw of the reset mechanism should be moving the wheels in the opposing direction?

I apologize for the "newbie" questions but as of 10 days ago I have never seen the inside of a jukebox. Although all other aspects of the machine are now working smoothly, I would really like to be able to use the coin mechanism.

Any additional suggestions would be helpful.

thx,
Randy

www.dropbox.com/sh/u7xsjf1cqzpetmv/AABZT8oAf8LnO_0wRCfqrYZla?dl=0





www.dropbox.com/sh/u7xsjf1cqzpetmv/AABZT8oAf8LnO_0wRCfqrYZla?dl=0

[jukenorman]

Hi Randy,
It looks like the coil to add credit (there are three, depends which coin is inserted) is not coming in. There is a write up on the credit unit on pages 5, 6 and 7 of the manual that should help you. You might check that the studs which adjust the number of credits haven't been messed with. Also apologies, my previous post is not correct - it would apply to the 459 but not the 449, I will edit it.
Norman.

[rrh]

Hi Norman,
So I worked the problem some more. First, I backed the screw out of the accumulator reset (K2) and once I went back to free play I could watch inside the credit assembly that everything in the selection sequence was functioning properly, including the rest coil firing. Then, I rotated all the ratchets home until the lug opened switches 3/4. At that point I could not do a first digit selection. I then added a quarter and the lug lifted on the accumulator allowing the ratchet to index forward two positions. Switches 3/4 successfully closed and I was able to now select off the keypad. However, the problem I’m down to now is that I cannot get the paw positioned to where it will “subtract”. I can move the ratchet back manually but if I move the paw in to engage the ratchet teeth to where it hopefully would move the ratchet one position back, the selection impulse switches are forced closed. I’m trying to find a pic of the paw details because I actually think there is a piece missing or something displaced? Unfortunately, the manuals do not show the paw details. I just don’t want to make alterations without knowing how it is supposed to be configured.

[jukenorman]

Hi Randy,
I suspect that you may have a part missing. The Rock-Ola parts catalogue doesn't show the reset pawl clearly at all. Jukebox-world.de sells the reset pawl and spring for earlier Rock-Ola credit units and I think yours should be broadly similar. There is both a picture of the part and a picture of it fitted. Hopefully that will assist you.
Norman.

[rrh]

Thank you!

Yes, that is it. It is missing both the flat blade and the spring!
The pic you referenced was perfect. Now I just have to track the parts down. Looks like jujeboxworld is not taking orders.


Thanks again Norman!

[Ron Rich]

Jukebox world will "take orders" and supply you with what you need, but you will need to submit your order on the dates indicated. Ron Rich

[jukenorman]

Hi Randy,
The notes on the Jukebox World part say that it's only for models up to 432/34 (not 433) so it looks like yours might be slightly different.

In the late 1970s, I got a Rock-Ola Tempo which was modified for free play by removing that pawl. Without knowing exactly what the part looked like, I made one using a small piece of tin plate and the spring from a ball point pen. My daughter now has that jukebox and that home made part is still working!

Norman.