Lubrication of different Jukebox Motors?

Okay guys, I haven't posted on here in a while as I have been refurbishing my RockOla 488 with that said I am now lubricating everything and I had some questions.

I know the topic of Juke lubrication has been covered in detailed, and thankfully after reading older posts I feel I have a pretty good idea of what to lubricate and how but I am not sure about the different motors.

I have located 3 different motors but non of them seem to have any "holes" or "flints" for dripping 3-1 SAE 20 into...the motor under the turntable appears to have openings but all I can see is what looks like a copper coil? I am very hesitant to drip oil in there and as far as the other motors I have located they appear completely sealed off.

Any suggests would be of great help, so far I have dripped a little oil on all of the gears and shafts that are visible, I bought some graphite powder based grease but I am super hesitant to put it on anything as I have read it could lock things up.

If needed maybe I can figure out how to post images of the motors.

Thanks in advance,

Mike

Hi Mike,
RockOla used two AC and two DC motors in most models--the two AC are the turntable and write in motors.
On the turntable motor, several different "versions" were used. One had two oil "tubes", on had one oil tube ( to the bottom bearing), and one had no oil tubes. Obviously, the one with two tubes--just fill the tubes ! The one with one tube--fill it and look at the shaft that drives the idler wheel--you will see a bearing as it exits the motor--ONE small drop or 20 wt. here, AND--look around that shaft and you should see a small series of holes that encircle it. Under these holes, there is a large felt wick, which should be filled with 20 wt. If there is no tube for the bottom bearing, motor must be removed, turned upside-down , and the small encircling holes with the oil wick under them must be saturated.
On the AC write-in motor. Once again, (not sure) but I think there were different versions here too--I strongly discourage "messing with this motor". It appears to me that a drop of 20 wt. on both ends of the armature shaft is sufficient. A small drop at any point where a gear shaft sticks thru the casting, and a very slight coating of oil on the open gears is all I use--SOME of the armature shafts have oil holes with felt underneath, at either end, similar to the above TT motor.
DC Gripper motor--MOST of these (of any brand) have an oil hole drilled into the gear box, just at the point that the armature passes out of the motor, into the gear box--there is a large felt there that needs to be oiled. The basket DC motor does NOT have that hole. I strongly urge, if you wanna do it rit-er, no, write--no,---RIGHT, that you remove both motors, open the gear boxes, and examine them. If the grease is still moist, just re-distribute it onto the gears. If old and dried out, it MUST be totally removed and replaced ( I suggest a SLIGHT coating of graphite grease here), and of course, clean, re-oil the motor, check/replace brushes as needed.
As for the use of (graphite, or any type) grease--if you do so, all "old stuff" must be removed, then a very slight coating of new grease should be applied to anything that "slides", and all gear teeth.
HTS, Ron Rich

Ron,

Thanks for the quick reply and the pointers. I believe two of the motors or cylinder shaped and one is a rectangular black box under the turntable mount.

None of the motors have any visible holes, reservoirs, tubes, or flints. I wish they did! I assume now I must remove all three motors in order to find the oil access points??

I fear removing the motors could damage something else as it does not appear easy to remove the motor under the turntable mount.

How often do the motors need to be oiled? I have had the machine for three years now and I am yet to oil the motors :/

I'll post the end results....

Thanks,
Mike

Hi Mike,
I don't believe I ever saw a TT motor of that type, with out oil holes--possible ?? Gotta Service Manual--look at the parts section for TT motor removal hints. The WI motor, I would not bother removing--just oil as above- Every few years--depending on use/ heat in the area ??
Ron Rich

http://www.jukebox-world.de/en/Jukebox-Parts-USA-oxid/Rock-Ola/Tempo-1-Tempo-2-1468-1485/TT-motor.html

The above link is a photo of the motor in my Rockola 488, any chance you could indicate where the holes/tubes/oil points may be?

I really appreciate it, you have been a great help. Owning a jukebox and ensuring it works I suppose go hand in hand so I better learn sooner rather than later, can't always find an expert to come out and fix....actually once tried to hire one and when they heard my machine was a 488 (1980's) they decided to pass! Again thanks for the help I have been learning a lot from reading your previous posts and replies as well.

Mike

Hi Mike,
Sure--see where the shaft comes out of the center ??--see the 8 oil holes around that inverted "cup" --they are felt filled, and should be saturated--bottom should also have the same oil holes-- Ron Rich