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  #1  
Old 03-19-2012, 08:46 PM
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New life or your failed tumbler motor.


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The little motors that RCBS uses in their brass tumblers often seem to fail well before the rest of the assembly does. Generally, the spacer that keeps the rotor centered in the tiny ball bearings turns to powder and the rotor begins to rub on the bearing housing, and it grinds to a halt. I took mine apart thinking it had a failed bearing, but upon closer inspection realized the bearings were fine. Long story short, a .020 shim cut with scissors and used inside the lower bearing flange put the rotor more or less back on center in it's mount and it's on again. I'm fairly certain I know of two of these units that went in the trash for this reason.
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  #2  
Old 03-20-2012, 05:49 AM
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I had a similar deal with the blower motor on my furnace...the repair guy wanted almost $400 to fix it and all it needed was a new shroud and a $1.50 shim, both of which I was able to have shipped to my door for a little over $20. 10 screws later I bolted it back in place and been fine ever since.

Good on you for finding and fixing instead of pitching it out and buying new. I think it stinks that America has become such a "throw-away" society.
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  #3  
Old 03-20-2012, 12:25 PM
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I too believe in tearing it apart before sending it out for repair. It is broke now, so I ain't gonna hurt it. As above, I may actually stumble onto a simple fix. Good work Unclepaddy. Of course y'all made me feel bad since I just threw a tumbler in the garbage without attempting to fix it.
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  #4  
Old 03-20-2012, 01:50 PM
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My Thumlers motor broke something serious near 20 years ago. Bowl and everything else where fine.

A landline call got a new motor/assembly sent to my door at no charge. Is still running fine.

Is "nature of the beast" that a tumbler motor runs in a "out of balance" condition.
I,m kinda impressed that they last as long as they do!

Good on you Unclepaddy. Saved one from the dumpster.

Cheezywan

Last edited by Cheezywan; 03-21-2012 at 05:01 PM. Reason: Something inserted a link in my post?
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  #5  
Old 03-21-2012, 09:08 AM
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An interesting aside:
Before I got ambitious about this fix, I had asked my wife to stop into an industrial parts dealer near her work and see if they could match up the motor. The kid behind the counter had never seen anything like it, (trust me, I stripped off the confusing eccentric weight first) and had her call me to find out what it was for. I was in a hurry and just said, "It's off my case cleaner." They didn't have it, so they gave her a hot tip on where to find it, and even printed out a map. When I got home she handed this info to me. It was directions to our local Case Tractor dealer. I just can't fathom the thinking of our youth.
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  #6  
Old 03-21-2012, 11:41 AM
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Quote:
Originally Posted by unclepaddy View Post
An interesting aside:
Before I got ambitious about this fix, I had asked my wife to stop into an industrial parts dealer near her work and see if they could match up the motor. The kid behind the counter had never seen anything like it, (trust me, I stripped off the confusing eccentric weight first) and had her call me to find out what it was for. I was in a hurry and just said, "It's off my case cleaner." They didn't have it, so they gave her a hot tip on where to find it, and even printed out a map. When I got home she handed this info to me. It was directions to our local Case Tractor dealer. I just can't fathom the thinking of our youth.
Well, I can about guarantee you that kid doesn't fix a whole lot of thing.
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  #7  
Old 03-26-2012, 05:58 PM
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My wife would have known we dont have a tractor.
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  #8  
Old 03-26-2012, 07:14 PM
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I've always wonders about making my harbor frieght grinder into a large tumbler as it vibe rates a lot harder than my tumbler.
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  #9  
Old 04-03-2012, 09:06 PM
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Quote:
Originally Posted by langenc View Post
My wife would have known we dont have a tractor.
Heh-heh! Funny.
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Old 04-07-2012, 12:52 PM
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My wife would have said the tractors she drives are newholland and johndeer so I know case tractors is wrong.

When reading this I thought you were going to say he printed you the Google maps directions to China where the motor came from.
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  #11  
Old 01-20-2014, 03:13 PM
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Quote:
Originally Posted by unclepaddy View Post
An interesting aside:
Before I got ambitious about this fix, I had asked my wife to stop into an industrial parts dealer near her work and see if they could match up the motor. The kid behind the counter had never seen anything like it, (trust me, I stripped off the confusing eccentric weight first) and had her call me to find out what it was for. I was in a hurry and just said, "It's off my case cleaner." They didn't have it, so they gave her a hot tip on where to find it, and even printed out a map. When I got home she handed this info to me. It was directions to our local Case Tractor dealer. I just can't fathom the thinking of our youth.
He just wants you to have a clean tractor, nothing wrong with that!
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  #12  
Old 04-06-2015, 06:17 AM
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replacement motor

Funny, in all the searches I have done and among all the threads on this subject, I have never seen anyone ever come up with an answer on where to buy one of these motors except for one that costs twice as much as a complete tumbler.
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  #13  
Old 06-24-2016, 11:12 PM
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IIRC this is the the same motor as used on the Thumbler Tumblers. It's a good bit cheaper than replacing the whole tumbler.
If y'all look for fasco motors u should be able to find a replacement for those small applications.
Shop around a bit. This should be available cheaper than Amazon has them.


https://www.amazon.com/Fasco-D132-3-...dyahoo-desk-20
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  #14  
Old 06-25-2016, 04:01 AM
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Timely thread. My green tumbler has started to make an off pitch noise and I'm afraid to walk away from it for fear it may start smoking. I too hate to throw things out before trying to fix. Trouble is I'm not real mechanically inclined, or maybe not confident that i'll get it back together more accurate. Anyway, like you said, what can you hurt. Can you give me a short course on it before I tear into it?
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  #15  
Old 06-25-2016, 04:11 AM
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Remember, they always put more parts into 'stuff' than you need. I have a whole shoe box of extra parts that were left over from repair projects!! LOL
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  #16  
Old 06-25-2016, 05:19 AM
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Failed parts

I don't use the RCBS, but the Thumler Tumbler. Since I have one that's 35-40 years old and Tumbler's a royal PITA to get parts from, someone suggested the link below.

Bought the motor which is the same as the current Model B and he let me try the base. I've been running it overloaded with LC 53 brass for days now. gets hot, but hasn't shut down on me yet. I am impressed with the product so far:

Tumblers - Reloading Products
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