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Very sad Mathes Cooler.....  Rate Topic 
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 Posted: Thu Apr 12th, 2018 03:34 am
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David Allen
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This as a gift from a fellow collector who didn't have time to take care of it.

Today I took it apart and found the motor was in very marginal shape. It appears to have been overheated but it seems not to have shorted out, grounded, or open circuit.

Tomorrow I hope to get the motor back together and see if it lives or not!


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 Posted: Thu Apr 12th, 2018 06:04 pm
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Duane Burright
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Just watched the video before I came over here. Nice cliffhanger ending!

I like those Mathes Coolers, especially with the four speed or variable speed setup, which is like a small variac. Emerson also made a similar wooden box fan with a variable speed control.

Last edited on Thu Apr 12th, 2018 09:03 pm by Duane Burright

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 Posted: Thu Apr 12th, 2018 06:43 pm
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Richard Daugird
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I have one of those that recently quit. Someone had cobbled a light dimmer in there, hope it's not damaged...I'll be using this video as a reference.

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 Posted: Thu Apr 12th, 2018 09:05 pm
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Duane Burright
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Richard Daugird wrote: I have one of those that recently quit. Someone had cobbled a light dimmer in there, hope it's not damaged...I'll be using this video as a reference.
Most people don't understand that a triac is ideal for motors.

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 Posted: Fri Apr 13th, 2018 04:19 am
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David Allen
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Richard Daugird wrote: I have one of those that recently quit. Someone had cobbled a light dimmer in there, hope it's not damaged...I'll be using this video as a reference.
Hope it helps you get yours going!  The light dimmer would be sort of OK as long as it isn't run at too slow of a speed. The motor in mine was gummed and stiff. It has no thermal protection, so if the motor is overheated, it will have no chance to shut down before damage is done.  Hopefully yours had a fuse or some other safety device...

Duane Burright wrote:Just watched the video before I came over here. Nice cliffhanger ending!

I like those Mathes Coolers, especially with the four speed or variable speed setup, which is like a small variac. Emerson also made a similar wooden box fan with a variable speed control.


Sorry to leave you hanging so long!  The new video may or may not help with the angst! LOL!


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 Posted: Fri Apr 13th, 2018 06:21 am
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Richard Daugird
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I'm about to watch this video. I have high expectations,...

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 Posted: Fri Apr 13th, 2018 06:29 am
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William Dunlap
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If you want to save the fan, the motor can be replaced reasonably.
I've bought several fans from Amazon and Surplus Sales of Nebraska.

This one looks like it might be a match.  Amazon fan motor

Not too expensive either. 

Cheers,
Bill

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 Posted: Fri Apr 13th, 2018 06:37 am
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Richard Daugird
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I'm glad it worked out, I need to fix my Mathes Cooler.

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 Posted: Fri Apr 13th, 2018 09:50 am
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Tom Nordin
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Harbor Freight, home of Buffalo Chip Tools.  :badidea

Kendal (with a non-digital mechanical power switch) is calling you, David   :D


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 Posted: Fri Apr 13th, 2018 07:44 pm
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David Allen
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Hi Tom - thanks for the pointer towards the sonicator with simple controls!  I used to have one like that, but loaned it to somebody and they got the electrics wet and ruined it.

As for the Mathes Cooler - I let it run since about 07:30 this morning. It's 14:30 now and the motor is still running at 1.75 amps and not smelling funky or anything. The steep pitched blades in this fan really move some air. It's definitely much stronger than I expected for its size!

I got a nicer, correct voltage fuseholder today and will install that for a permanent safety improvement. 

I've been sort of spring cleaning around my place.  Wanted to wash the car and found that pressure washer was not working properly.  Found three busted plungers and torn up packings in the pump.  Bought the parts at a local business and paid a ridiculous markup on them. But they had them in stock.  Got the pump back together and then noticed oil leaking out of the motor capacitor cover.  Just got a new run cap put in and finally about to be able to wash things again. Hopefully things go smoothly for me now!


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 Posted: Tue Apr 17th, 2018 04:12 pm
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Duane Burright
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David Allen wrote: I got a nicer, correct voltage fuseholder today and will install that for a permanent safety improvement.
Just curious about the maker and fuse type. I'm thinking about adding fuse holders in my PSC motor fans in case they have a capacitor failure while I'm asleep or away (I like to leave a couple of fans running for the dog when I go out on hot days). I figure that the fuse would go when the amperage rises in a cap failure scenario.

Thanks in advance.

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 Posted: Tue Apr 17th, 2018 07:48 pm
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David Allen
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Duane Burright wrote: David Allen wrote: I got a nicer, correct voltage fuseholder today and will install that for a permanent safety improvement.

Just curious about the maker and fuse type. I'm thinking about adding fuse holders in my PSC motor fans in case they have a capacitor failure while I'm asleep or away (I like to leave a couple of fans running for the dog when I go out on hot days). I figure that the fuse would go when the amperage rises in a cap failure scenario.



Thanks in advance.


Hi Duane.  The store where I got the fuseholder has them in bulk and I didn't get a part number.  Here is a link to a similar item:
https://www.alliedelec.com/littelfuse-01500079z/70574405/

The 2.5A fuse is this one:
https://www.alliedelec.com/bussmann-by-eaton-bk-mdl-2-1-2-r/70149608/

The holder would hold any size 3AG (0.25" x 1.25") fuse. This is the older style "standard" glass tube fuses you see everywhere.

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 Posted: Tue Apr 17th, 2018 08:07 pm
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Duane Burright
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David Allen wrote: Hi Duane.  The store where I got the fuseholder has them in bulk and I didn't get a part number.  Here is a link to a similar item:
https://www.alliedelec.com/littelfuse-01500079z/70574405/

The 2.5A fuse is this one:
https://www.alliedelec.com/bussmann-by-eaton-bk-mdl-2-1-2-r/70149608/

The holder would hold any size 3AG (0.25" x 1.25") fuse. This is the older style "standard" glass tube fuses you see everywhere.

Thank you again David.

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 Posted: Wed Apr 18th, 2018 09:28 pm
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David Allen
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Duane Burright wrote:
Thank you again David.

You're welcome!

By the way; today my dad visited and used the Mathes Cooler for several hours. It ran perfectly!

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 Posted: Thu Apr 19th, 2018 01:55 am
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Christopher Harding
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Great video David! Glad you saved the fan.

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