[Jukebox-list] Magazine Motor not running on Rock-Ola 1438

[Britt Abbott]

Bas, I'm currently working on my Rockola 1438. I bought it about three years ago in "semi-restored" condition. However, I'm constantly working and chasing various bugs. Currently my 1.6Amp Slo-Blo fuse is blowing as the gripper motor lifts a record. I have already changed out the old silicon rectifier, so I doubt that's the problem, so I pulled the gripper motor, and found the two brushes in poor condition so I order and am waiting for a couple from Stamman in Germany. I also took the motor apart and cleaned armature, oiled the bearing. I also pulled up the stator and cleaned around the inside of the case and stator. Of the four wires, two are attached to points on the motor case and two connect via "butt connectors" to the stator. When I was cleaning,... not too agressively, one of the wires easily slipped out of the butt connector as if it was just kinda unconnected. This could be why my motor was pulling too many amps and popped the fuse. You might want to pull your motor down, and inspect the wire butt connectors at the stator.
Britt Abbott
Chesapeake, VA


>From: Bas Van Dijk <BVanDijk at cochlear.be>
>Date: 2007/09/30 Sun AM 04:02:07 CDT
>To: jukebox-list at lists.netlojix.com
>Subject: [Jukebox-list] Magazine Motor not running on Rock-Ola 1438

>
>Hi There,
>
>I'm new to this list. We own a Rock-Ola 1438 since 20 years. It has not 
>been running for the past 10 years or so, but I've started restoring. 
>Yesterday it worked ok but whenever a record was playing it cancelled the 
>selection right at the start of the record. I took out and cleaned the 
>relay switches at the tone arm and put them back but now, for some reason, 
>the main motor (the one spinning the magazine) does not run anymore. I 
>don't see how this is related to what I did, the magazine turned before I 
>took out the tone arm relays.
>
>I know the motor is still ok because when I connect it to the connection 
>of the gripper arm motor it does spin.
>
>I'm trying to trace back the fault but it is quite a pain (as most of you 
>will know I guess...).  My main question is this: the connections to the 
>motor are 4 wires. I have a wiring diagram and there 2 connections go to 
>the main motor and 2 go to a coil. I'm assuming this is to change the 
>direction? I'm not sure. Can somebody tell me what the 4 connections are? 
>What voltages should be on the wires for the motor to turn? (and why..)?
>
>Any other suggestions are of course welcome, but an answer to the above 
>question would help me a lot.
>
>BTW: I tried moving and cleaning the magazine reversal switch and that 
>does not help.
>
>Best wishes,
> Bas
>
>
>
>==============================================
>
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