I'm working on my first Electrola VV-XVI motor assembly, and need some help. During testing it makes a quick knocking noise when in its correct horizontal position. The noise disappears when the motor board is tilted up on its support bracket. I believe there's too much side play in the commutator shaft and wonder if it's missing some parts. In the picture below is a washer I believe went on the shaft end. There was a second washer with a flat detent on its rim, but that's gone missing.
If anyone's had a good amount of experience with these I'd appreciate your advice. PM's are welcome. Thanks!
Bob
Info needed regarding Victrola Universal 110-220 motor noise
- barnettrp21122
- Victor IV
- Posts: 1601
- Joined: Thu Jan 08, 2009 4:19 pm
- Personal Text: "Did you ever stop to think that pleasure is a duty?" (Victor sales pamphlet)
Info needed regarding Victrola Universal 110-220 motor noise
"Comparison is the thief of joy" Theodore Roosevelt
His Master's Voice Automatic 1A Exponential Gramophone Demonstration:
https://www.youtube.com/watch?v=Qi70G1Rzqpo
His Master's Voice Automatic 1A Exponential Gramophone Demonstration:
https://www.youtube.com/watch?v=Qi70G1Rzqpo
-
- Victor Monarch Special
- Posts: 5334
- Joined: Mon Aug 24, 2009 3:08 pm
- Location: Southeast MI
Re: Info needed regarding Victrola Universal 110-220 motor n
Bob,
I'm pretty sure you're correct about there being too much end play. The washer you show would probably help things out. Just curious, how did the washer come to be loose? Did you have the motor apart? There may also be a small spring washer, (i.e. Belleville washer or wavy washer), that takes up end play.
I'm pretty sure you're correct about there being too much end play. The washer you show would probably help things out. Just curious, how did the washer come to be loose? Did you have the motor apart? There may also be a small spring washer, (i.e. Belleville washer or wavy washer), that takes up end play.
- barnettrp21122
- Victor IV
- Posts: 1601
- Joined: Thu Jan 08, 2009 4:19 pm
- Personal Text: "Did you ever stop to think that pleasure is a duty?" (Victor sales pamphlet)
Re: Info needed regarding Victrola Universal 110-220 motor n
Jerry:
I removed the motor cover to access the commutator and brushes. I did not notice the washers missing until I came across them later on the floor. The washers themselves would not affect end play, I'm pretty sure, and the cover underside does not come in contact with the shaft end. I wonder if there was an end cap with something holding a little pressure against the shaft end, like a ball bearing.
It'd be helpful to see a picture of someone else's motor. Thanks for the reply!
Bob
I removed the motor cover to access the commutator and brushes. I did not notice the washers missing until I came across them later on the floor. The washers themselves would not affect end play, I'm pretty sure, and the cover underside does not come in contact with the shaft end. I wonder if there was an end cap with something holding a little pressure against the shaft end, like a ball bearing.
It'd be helpful to see a picture of someone else's motor. Thanks for the reply!
Bob
"Comparison is the thief of joy" Theodore Roosevelt
His Master's Voice Automatic 1A Exponential Gramophone Demonstration:
https://www.youtube.com/watch?v=Qi70G1Rzqpo
His Master's Voice Automatic 1A Exponential Gramophone Demonstration:
https://www.youtube.com/watch?v=Qi70G1Rzqpo
-
- Victor Monarch Special
- Posts: 5334
- Joined: Mon Aug 24, 2009 3:08 pm
- Location: Southeast MI
Re: Info needed regarding Victrola Universal 110-220 motor n
I don't know about the one washer you mention, but the one you show absolutely would affect end play. It needs to go on the armature shaft, between the commutator and the motor housing. In other words, you would have to remove the end of the motor housing to put it in place. That's why I found it odd that it was loose and wondered if you had the motor disassembled.barnettrp21122 wrote:Jerry:
I removed the motor cover to access the commutator and brushes. I did not notice the washers missing until I came across them later on the floor. The washers themselves would not affect end play, I'm pretty sure, and the cover underside does not come in contact with the shaft end. I wonder if there was an end cap with something holding a little pressure against the shaft end, like a ball bearing.
It'd be helpful to see a picture of someone else's motor. Thanks for the reply!
Bob
- Henry
- Victor V
- Posts: 2624
- Joined: Thu Jan 08, 2009 11:01 am
- Location: Allentown, Pennsylvania
Re: Info needed regarding Victrola Universal 110-220 motor n
I notice a slotted gizmo of some sort that appears to be threaded into the vertical post in the motor casting. Is this possibly an adjustment screw for the armature shaft/bearings? Maybe something is loose there. Can you feel any wobble in the armature shaft, or is there just the knocking sound you describe? I assume you've checked the condition of the motor brushes?
- barnettrp21122
- Victor IV
- Posts: 1601
- Joined: Thu Jan 08, 2009 4:19 pm
- Personal Text: "Did you ever stop to think that pleasure is a duty?" (Victor sales pamphlet)
Re: Info needed regarding Victrola Universal 110-220 motor n
Jerry-your thoughts on washer placement makes sense. I haven't removed the armature, but who knows where this motor's been before I got it!
Henry-the piece you mention is a coil spring that connects the motor shaft to the governor shaft. I think it's there to absorb any sudden shock and isolate any motor vibration.
Thanks for your comments!
Bob
Henry-the piece you mention is a coil spring that connects the motor shaft to the governor shaft. I think it's there to absorb any sudden shock and isolate any motor vibration.
Thanks for your comments!
Bob
"Comparison is the thief of joy" Theodore Roosevelt
His Master's Voice Automatic 1A Exponential Gramophone Demonstration:
https://www.youtube.com/watch?v=Qi70G1Rzqpo
His Master's Voice Automatic 1A Exponential Gramophone Demonstration:
https://www.youtube.com/watch?v=Qi70G1Rzqpo
- VictrolaGuy - Walt
- Victor Jr
- Posts: 49
- Joined: Wed Jan 07, 2009 8:18 pm
Re: Info needed regarding Victrola Universal 110-220 motor n
Bob, before I send a lot of pictures or start writing much can you verify that the motor shaft (after exiting the motor housing and prior to the governor) is setup like the one in the following picture? I've also included other views just to be able to know that what you have is the same.barnettrp21122 wrote:I'm working on my first Electrola VV-XVI motor assembly, and need some help. During testing it makes a quick knocking noise when in its correct horizontal position. The noise disappears when the motor board is tilted up on its support bracket. I believe there's too much side play in the commutator shaft and wonder if it's missing some parts. In the picture below is a washer I believe went on the shaft end. There was a second washer with a flat detent on its rim, but that's gone missing.
If anyone's had a good amount of experience with these I'd appreciate your advice. PM's are welcome. Thanks!
Bob
I have worked on five or six of the universal motors including the one in the picture which is in my VE-500 Sheraton. I think that all of the motors are the same with no significant variations that I recall.
- barnettrp21122
- Victor IV
- Posts: 1601
- Joined: Thu Jan 08, 2009 4:19 pm
- Personal Text: "Did you ever stop to think that pleasure is a duty?" (Victor sales pamphlet)
Re: Info needed regarding Victrola Universal 110-220 motor n
Walt-Thanks for your detailed pictures, and thanks for posting!
Yes, my setup is exactly the same as yours.
I've done some more adjusting, pushing the spring connecting motor and governor shafts further into their slots, and have adjusted the governor bearing so there's just the slightest amount of play. That seemed to help.
I cleaned the commutator using a pencil eraser pressed against it while running. The carbon brushes were sparking a bit and I smoothed those following the "Look for the Dog" instructions provided by Victor back in the day.
That helped a lot in quieting things too.
I've played a couple dozen sides and things sound pretty good. I like the electric motor coupled with acoustic playback!
Thanks again to all for the help!
The VE XVI is pictured below.
Bob
Yes, my setup is exactly the same as yours.
I've done some more adjusting, pushing the spring connecting motor and governor shafts further into their slots, and have adjusted the governor bearing so there's just the slightest amount of play. That seemed to help.
I cleaned the commutator using a pencil eraser pressed against it while running. The carbon brushes were sparking a bit and I smoothed those following the "Look for the Dog" instructions provided by Victor back in the day.
That helped a lot in quieting things too.
I've played a couple dozen sides and things sound pretty good. I like the electric motor coupled with acoustic playback!
Thanks again to all for the help!
The VE XVI is pictured below.
Bob
"Comparison is the thief of joy" Theodore Roosevelt
His Master's Voice Automatic 1A Exponential Gramophone Demonstration:
https://www.youtube.com/watch?v=Qi70G1Rzqpo
His Master's Voice Automatic 1A Exponential Gramophone Demonstration:
https://www.youtube.com/watch?v=Qi70G1Rzqpo