huskeric
spending too much on rocks
Member since May 2016
Posts: 353 
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Post by huskeric on May 27, 2016 8:37:40 GMT -5
I thought I'd start the hobby off inexpensively, so I bought a Thumler's Model T off eBay. It arrived yesterday, and when I plugged it in, the motor sounded like a chain stuck in the garbage disposal. If I put any pressure on the top case, it would physically slow the motor down. I thought there might be some contact or something so I loosened the bolts and pushed the motor down as far as the casing would allow, and then tightened back up.
When I tried again, it was better, but still REALLY noisy. I thought maybe that's just how it is, so I let it run, and after about 30 seconds, it started to bog down and slow down, and I just unplugged it so that it didn't burn anything up.
It is rivited together, so I didn't get into the case at all (yet), but I wanted to ask some advice. Is the motor shot, can I do anything to try to resuscitate it, or is it just throwing good money after bad? I looked online and it doesn't appear that they offer replacement motors for that model, but I suspect if I knew the specs, I could find something.
I appreciate any thoughts/guidance.
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colliel82
has rocks in the head
Member since November 2007
Posts: 664
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Post by colliel82 on May 27, 2016 9:36:13 GMT -5
If you can't get the motor running the way it should, it looks like The Rock Shed carries a replacement for it. link. It is for a model T1, so I hope it will work for you if you need it. |
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huskeric
spending too much on rocks
Member since May 2016
Posts: 353
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Post by huskeric on May 28, 2016 12:56:06 GMT -5
I actually was able to resolve it. I didn't want to drill out the rivets on the casing until I heard back from the seller, but I was able to drill them out and discovered that the fan on the motor was rubbing against the shroud, and it sounded like a two-cycle motor running in my basement. I hammered out the casing a bit, re-installed the motor, and it is running as quietly as a mouse. I just had to drill out the case and put it back together with a couple of machine screws.
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Fossilman
Cave Dweller 
Member since January 2009
Posts: 20,723
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Post by Fossilman on May 28, 2016 16:28:47 GMT -5
Great news to hear!!!!!!! Glad you figured it out...............
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huskeric
spending too much on rocks
Member since May 2016
Posts: 353
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Post by huskeric on May 28, 2016 20:41:21 GMT -5
So am I! I really can't believe how quiet that thing is now. It's almost soothing to listen to the rocks tumble. I can't wait to share pics of our first batch.
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colliel82
has rocks in the head
Member since November 2007
Posts: 664
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Post by colliel82 on May 29, 2016 14:16:21 GMT -5
Glad you got it running. It will be fun to see what you have tumbled in a couple of months.
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salpal48
starting to spend too much on rocks
Member since March 2015
Posts: 136
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Post by salpal48 on May 30, 2016 9:39:28 GMT -5
I thought I'd start the hobby off inexpensively, so I bought a Thumler's Model T off eBay. It arrived yesterday, and when I plugged it in, the motor sounded like a chain stuck in the garbage disposal. If I put any pressure on the top case, it would physically slow the motor down. I thought there might be some contact or something so I loosened the bolts and pushed the motor down as far as the casing would allow, and then tightened back up. When I tried again, it was better, but still REALLY noisy. I thought maybe that's just how it is, so I let it run, and after about 30 seconds, it started to bog down and slow down, and I just unplugged it so that it didn't burn anything up. It is rivited together, so I didn't get into the case at all (yet), but I wanted to ask some advice. Is the motor shot, can I do anything to try to resuscitate it, or is it just throwing good money after bad? I looked online and it doesn't appear that they offer replacement motors for that model, but I suspect if I knew the specs, I could find something. I appreciate any thoughts/guidance. Before you dump this motor . I found that most are just gunked up or dirty. You can clean it. disconnect the motor and remove from tumbler. soak the entire motor in mineral Spirits. for a Day or overnight. leave the plug out side . . Turn the pulley several times. . next day let the motor Dry out either by itself Or with a hair dryer On Cool. Once dry Oil then Plug in. it should run well . do not plug in while in the solution It may smell a while but will go away Sal |
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Post by 150FromFundy on May 31, 2016 16:47:17 GMT -5
I've used the AR-2, the Model B and a UV-10 for a number of years and only replaced one tired motor to date. Normally, the motors supplied with Thumlers are reliable and trouble free. It sounds like you simply got a bad one. Glad to hear it is working now.
When the time comes, the beauty of these simple machines is that you can buy replacement motors and parts.
The Thumler motors run warm to the touch. This is normal. They are thermally protected and the motor will cut out if things get bad due to a barrel or belt jam. Simply unplug the motor and plug it back in. It's that simple.
Darryl.
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zarguy
fully equipped rock polisher
Cedar City, Utah - rockhound heaven!
Member since December 2005
Posts: 1,791
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Post by zarguy on Nov 15, 2017 20:01:40 GMT -5
I thought I'd start the hobby off inexpensively, so I bought a Thumler's Model T off eBay. It arrived yesterday, and when I plugged it in, the motor sounded like a chain stuck in the garbage disposal. If I put any pressure on the top case, it would physically slow the motor down. I thought there might be some contact or something so I loosened the bolts and pushed the motor down as far as the casing would allow, and then tightened back up. When I tried again, it was better, but still REALLY noisy. I thought maybe that's just how it is, so I let it run, and after about 30 seconds, it started to bog down and slow down, and I just unplugged it so that it didn't burn anything up. It is rivited together, so I didn't get into the case at all (yet), but I wanted to ask some advice. Is the motor shot, can I do anything to try to resuscitate it, or is it just throwing good money after bad? I looked online and it doesn't appear that they offer replacement motors for that model, but I suspect if I knew the specs, I could find something. I appreciate any thoughts/guidance. Before you dump this motor . I found that most are just gunked up or dirty. You can clean it. disconnect the motor and remove from tumbler. soak the entire motor in mineral Spirits. for a Day or overnight. leave the plug out side . . Turn the pulley several times. . next day let the motor Dry out either by itself Or with a hair dryer On Cool. Once dry Oil then Plug in. it should run well . do not plug in while in the solution It may smell a while but will go away Sal , I have paint thinner. Will that work? The Dayton model 9M481, 1/100 HP, 1550 RPM motor on my tumbler died. I ran it for a couple of months, shut it down for a few days & when I went to start it up again it wouldn't budge. I can barely turn the shaft by hand. I would love to revive it before buying a replacement motor. Here's the tumbler. Is this the predecessor to the Tru Square line of Thumbler tumblers? I got in an estate sale with 2 Lortone barrels, which I like better than Thumbler's barrels.  Lynn |
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quartz
Cave Dweller
breakin' rocks in the hot sun
Member since February 2010
Posts: 3,359
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Post by quartz on Nov 15, 2017 23:32:21 GMT -5
You might have to drill rivets [see above] to get the motor open, but a good cleaning and lube of the shaft and bushings in the motor end covers should fix it up.
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salpal48
starting to spend too much on rocks
Member since March 2015
Posts: 136
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Post by salpal48 on Nov 16, 2017 17:45:01 GMT -5
Yes, Paint Thinner will work. . If the oil hardened Up or Grease . Gunked. . Leave it in the solution. It does not Take much to stop a motor
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dillonf
fully equipped rock polisher
Hounding and tumbling
Member since February 2022
Posts: 1,622
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Post by dillonf on Jul 3, 2023 20:46:01 GMT -5
I thought I'd start the hobby off inexpensively, so I bought a Thumler's Model T off eBay. It arrived yesterday, and when I plugged it in, the motor sounded like a chain stuck in the garbage disposal. If I put any pressure on the top case, it would physically slow the motor down. I thought there might be some contact or something so I loosened the bolts and pushed the motor down as far as the casing would allow, and then tightened back up. When I tried again, it was better, but still REALLY noisy. I thought maybe that's just how it is, so I let it run, and after about 30 seconds, it started to bog down and slow down, and I just unplugged it so that it didn't burn anything up. It is rivited together, so I didn't get into the case at all (yet), but I wanted to ask some advice. Is the motor shot, can I do anything to try to resuscitate it, or is it just throwing good money after bad? I looked online and it doesn't appear that they offer replacement motors for that model, but I suspect if I knew the specs, I could find something. I appreciate any thoughts/guidance. Before you dump this motor . I found that most are just gunked up or dirty. You can clean it. disconnect the motor and remove from tumbler. soak the entire motor in mineral Spirits. for a Day or overnight. leave the plug out side . . Turn the pulley several times. . next day let the motor Dry out either by itself Or with a hair dryer On Cool. Once dry Oil then Plug in. it should run well . do not plug in while in the solution It may smell a while but will go away Sal I plan on trying this! Thanks! Once it is dry where do you put the oil in the old Thumler's Franklin Electric motors? Cheers! |
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Time
starting to spend too much on rocks
Making something positive out of COVID restrictions by learning to create jewelry out of stones.
Member since September 2021
Posts: 154
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Post by Time on Jul 3, 2023 23:56:23 GMT -5
This is an old post so I am not sure anyone from that time will see your question. I saw this suggestion too late to try it on my motel T motor. The grease dries out on these old motors and mine did not have any hole to add oil. From what I read from others is theirs did not either. The mineral oil soak is a way to get around that issue by having oil on both sides of the bushing by immersion in the mineral oil. My understanding is that softens up the remaining grease in the area of the bushings and to the point that it will lubricate the bushings. I didn’t get to try it because I took the motor apart (bad idea) and the bushings have little retainer clips that will let them pop out but not back in.
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stefan
Cave Dweller
Member since January 2005
Posts: 14,113
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Post by stefan on Jul 4, 2023 12:05:59 GMT -5
I ruined my motor by trying to take it apart. Yea they are not serviceable beyond soaking and oiling. I cut up the cover and put a motor from an AR12 in its place.  |
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