help! Phonograph gear repair/replace?

[josh]

I believe this is a EDISON STANDARD MODEL “B”, the case only says Edison on the front without the banner.

[josh]

I just lost everything that I wrote...

Hello,
This is my first thread here But I am a long time admirer of Edison. This is my second phonograph (so I can officially say that I am a collector now) but my first that needs repaired. The small gear that should butt up against the larger gear on the belt pulley shaft in the inside of the lower gearbox has broke loose. The gear slides freely from side to side and spins freely . I am skeptical that epoxy would be strong enough to hold even if I cleaned the grease off and scuffed up the juncture. Does anyone have experience with this problem or have any advice on how to proceed? Does anyone have the part that I could purchase from you? I do not have a welder to do the repair.

Also, notice the apparent weld spot close by at the other shaft juncture. Was this a later repair or something that is from the factory?

[martinola]

Hi Josh.
Sorry to see that you're having problems. I'd almost bet that the small gear developed a crack causing it to go into free-wheeling. George Vollema can help you out with a replacement. His email is : [e-mail] His website is: www.victroladoctor.com

That blob next to the governor shaft gear is odd. If it's easy to make a scratch in it, it may be a clumsy solder repair. Almost certainly it was done later. I'd forward the photos to George and get his take on it.

How you proceed depends on how much you want to take the motor apart. It's not terribly complicated. But you do have to be careful that the spring is completely unwound. Also when separating the gear cluster from the spring barrel and the governor shaft: be very careful to not bend the governor shaft's pins. Once you've got the cluster apart, you can clean and degrease in Lacquer Thinner. At that point you can closely inspect the gears and the blobby repaired area. Or maybe just send the whole cluster to George and have him put it right. In either case, it is well worth fixing. The Standard model B is a real workhorse machine. Good luck!

Martin

[billcahill]

That is the 19 tooth gear. because they were made too thin they have a tendency to break.
Most reputable antique phonograph parts dealers sell a replacement wider than original that you use.
Dennis, and, Patti Valente of Apsco in New York carry them, but, I forgot the names of other two.
The replacement part is brand new.
Bill Cahill

[josh]

If I just get a replacement gear, how does it seat back in place? Or would it come with the shaft attached? I looked at a parts list for the phonograph and it looks like all of the gears come off of the shafts. How? I assumed they were welded on at the factory.

[billcahill]

The new gears are a press on fit. Clean the shaft well. Be careful not to bend, and, carefully tap the new gear on so it is centered with the other gear.

[billcahill]

Those blobs look to me like the governor speed pad, and, the brake. The other speed pad is on the other side of the yoke.

[josh]

Aug 30, 2016 17:19:08 GMT -5 billcahill said:

The new gears are a press on fit. Clean the shaft well. Be careful not to bend, and, carefully tap the new gear on so it is centered with the other gear.

Thank you all so much. That was very helpful.