Rock Ola Jukebox problem

[Steve M]

Hi, I have owned a Rock Ola Princess 471 for many years and had hours of trouble free entertainment from it. Today I wanted to add a new 45 to the magazine wheel. As per usual I pushed forward the lever to scan to enable me to remove the unwanted 45. I then replaced it with the new 45 and repostioned the lever to open. When I selected the new 45 using the push buttons, the grabber arm, found and gripped the new 45 and then stopped. Now the grabber arm is locked and the magazine will not rotate anymore. I guess it is something simple, but I can not find the answer to my problem. Any thoughts would be greatful. Thanks, Steve.

[Ken Layton]

One of the red pushbutton circuit breakers has probably tripped. Press to reset.

[Steve M]

Hi Ken,
Thanks, but I tried this. Only the turntable worked after I pressed the circuit breakers, not the magazine wheel.
Steve.

[jennifer]

      Jennifers Rock-ola is a bit older than that one (440) (fire victim)... But after the restore mine did that twice, The first time the transfer arm
bound up (used, and lack of grease) Stopping the carousel, and the second time the motor gave out ( From trying to push that old arm assy. I s"pose)
Find what circuit is tripping and work backwards... At least there is a service manual avaliable for yours.

[Steve M]

Thanks Jennifer,
I will investigate further.
Steve.

[Ken Layton]

Service manuals and genuine Rockola replacement parts are available to purchase from www.victoryglass.com

# 37-1220 (a.k.a. # R-83) Rockola model 440 Service Manual, 116 pages, $37.50

# 37-3277 (a.k.a. # R-522) Rockola model 471 Service Manual, 72 pages, $35.00

[Steve M]

Thanks Ken,
Looks like this is the way to go.
Steve.

[jennifer]

    Ken... Btw I so diddnt mean to type old school in my last post, Sorry.

[Steve M]

Hello again,
On further investigation of my problem. If I reset the red mechanism breaker switch and put the magazine lever to scan, the turn table will turn for about 5 seconds then the breaker trips again. However the magazine wheel stays blocked.  Also when I  flick the lever between scan/off/open, the play relay mecanism actives, is this normal? Any bright ideas are welcome, as I haven't a clue as to where to find a jukebox expert here in Barcelona.
Thanks again, Steve.

[Ken Layton]

Unplug the magazine motor and gripper motor and reset the breaker again. Does it trip now?

If not, then plug the gripper motor back in. If the breaker trips now, the gripper motor is shorted. If not, then plug the magazine motor back in.

Does it trip now? If so, the magazine motor is shorted.

Note: if something mechanically binds either the gripper motor (like the gripper bow seizing up) or the magazine motor, the breaker will trip.

[Steve M]

Hi Ken,
You are spot on. The gripper motor had seized with the old grease that was hard and brittle. I cleaned it all of then used an electrical lubricant and left it for a few hours. Then I wiggled the mecanism gently and HEY PRESTO, it works. Since that I have ordered the service manual on ebay and cleaned and lubricated everything. I'm a very happy bunny now. Thanks again to you and all that helped. Cheers, Steve.

[Ken Layton]

Glad you got it running again.

Ron Rich over at the www.phonoland.com jukebox forum recommends 20 weight non detergent motor oil to lubricate the gripper bow and trunnion assembly. That seems to work the best and last the longest.