Automatic Brake Calibration Help

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SignatureSeriesOwner
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Automatic Brake Calibration Help

Post by SignatureSeriesOwner »

Well, I picked up the Granada, but cannot get the auto-brake to function properly. I can stick a record on it, start the turntable, and it'll stop it just before halfway everytime. Seems as it hits the 4th or 5th tooth, it snaps the brake shut every time. The piece where the stop/start tab and the lever that holds it in place is a bit worn, but would that cause this problem?


Seems a shame to only be able to play records ½ way through. :(


The soundbox is BAD. Nickel plating is worn away in a lot of spots, and it has a nice big crack in it. But it does sound surprisingly good.
Saving America's Acoustical History, One Phonograph At A Time...

spin78's
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Re: Automatic Brake Calibration Help

Post by spin78's »

Sometimes a squirt of liquid wrench or wd40 to the brake mech. will do the trick.

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Re: Automatic Brake Calibration Help

Post by SignatureSeriesOwner »

I tried that already, unfortunately. A drop or two of 3-N-1 to all moving parts on the motorboard helped it a lot, but it still hangs up.
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barnettrp21122
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Re: Automatic Brake Calibration Help

Post by barnettrp21122 »

Maybe this previous post of mine will help:

http://forum.talkingmachine.info/viewto ... f=2&t=3944

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

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Re: Automatic Brake Calibration Help

Post by SignatureSeriesOwner »

That's most likely what mine needs done to it (the last posting) although I don't know how to bend it properly. I can't see the metal "giving" enough for me to bend it back slightly.
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barnettrp21122
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Re: Automatic Brake Calibration Help

Post by barnettrp21122 »

It's best to remove the brake assembly from the motorboard, and then bend down the arm "A" with a needle-nose pliers until the end is snug against the lower plate. You'll easily be able to set and trip the mechanism and ensure the best adjustment before installing back onto the motorboard. Hope this helps!
Bob

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