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Post by perkins17 on Jun 30, 2021 20:38:32 GMT -5
I have my tumbler (Lortone 33b) operating in my home's garage and have paused my tumbler due to the tempatures reaching 100 degrees or more. I was wondering if anyone on the forum has a general idea of what a safe operating temperature for my tumbler would be. Thanks in advance!
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Post by stonemon on Jun 30, 2021 20:55:54 GMT -5
Welcome to the forum!
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Benathema
has rocks in the head
God chased me down and made sure I knew He was real June 20, 2022. I've been on a Divine Mission.
Member since November 2019
Posts: 703
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Post by Benathema on Jun 30, 2021 20:58:35 GMT -5
If you can put your hand on the plate surrounding the motor housing and not burn yourself, you're good.
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Post by perkins17 on Jun 30, 2021 21:05:47 GMT -5
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Post by perkins17 on Jun 30, 2021 21:07:46 GMT -5
If you can put your hand on the plate surrounding the motor housing and not burn yourself, you're good. Thank you. I think I will get it running again tomorrow and check it's tempatures fairly regularly.
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tumblee
starting to spend too much on rocks
Member since March 2021
Posts: 154
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Post by tumblee on Jun 30, 2021 21:38:29 GMT -5
Yep, they get pretty hot. Drilled a few holes in cover over the motor/fan. Dropped temp ~5 degrees.
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Post by perkins17 on Jun 30, 2021 21:43:18 GMT -5
Thanks. I might remove the top cover in order to cool it for the summer heat. My garage can probably heat up to almost 120 and I don't want to burn it out!
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tumblee
starting to spend too much on rocks
Member since March 2021
Posts: 154
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Post by tumblee on Jun 30, 2021 22:11:03 GMT -5
perkins17LCARS Avatar Apr 1, 2007 18:52:07 GMT -4 LCARS said: I've said this before and I'll say it again. ANY tumbler that has a CSA, ASA or UL sticker MUST employ a motor with a thermal fuse or thermal breaker (higher end) in line with the coil. If at any time the temperature of the stator assembly gets dangerously hot the thermal protection is supposed to break the circuit before a fire can start. Thermal fuses are usually set quite high since they will not reset after failing. It is assumed that a terminal failure of the motor has occured if the fuse blows. Higher quality motors will have a thermal breaker triggered at lower temperature that will resets itself when the temp drops back down to a safe level. A thermally overloaded tumbler will cut in and out as the breaker opens and closes, a good indicator that it is in dire need of service. You should NEVER knowingly allow a tumbler to run hot since damage to the motor is likely to occur at higher temps. Your tumblers should NEVER be able to start a fire, UNLESS: - you built your own tumbler with inadequate parts or neglected to factor in any thermal protection. - you bought a cheap Mexican (or other foreign) tumbler that was never UL or ASA listed. - some completely unforseen cosmic anomaly occurs in the motor or the electricals. You are way more likely to start a fire with your toaster, hair dryer or ceramic floor heater than with your tumbler running 24/7/365 so CHILL! Now, that said... It is always a good idea to provide extra air circulation to cool your tumblers, which ultimately prolongs the life of the tumbler. All the rocks rubbing together even generate their own heat from friction. I have taken the top covers right off of mine to allow as much heat to dissipate as possible. Since I run them in a storage closet under the stairs, there is very little dust. The case should never be so hot to the touch that it is hard to pick up and carry.
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Post by perkins17 on Jun 30, 2021 22:48:42 GMT -5
Thank you. That is very good to know.
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