Cleaning An Electric Motor

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Hi all,

I have an absolutely bogging D112M B5 TEFC motor. What is the best way to clean it?? Could i wash it off with a steamer or will this just drive water into the innards??

Also, given a choice, would you have a secondhand Brooke crompton motor or a new TECO Westinghouse.....

john...

 
Hi all,

I have an absolutely bogging D112M B5 TEFC motor. What is the best way to clean it?? Could i wash it off with a steamer or will this just drive water into the innards??

Also, given a choice, would you have a secondhand Brooke crompton motor or a new TECO Westinghouse.....

john...
Not sure I'd hit it with a steam cleaner unless you're very careful not to get water in the termination box. We usually remove the fan cover and blades and clean the motor manually then corrosion treat as necessary.

Both motors are good makes so I'd probably go for the motor that's most efficient in that particular application.

 
Back in the day we used a blower & vacuum ( Made for the job)  through  the vents ,  degreaser on the outside & ......... OMG  !  phone the H&S police ...the terminal box with tricoethelene .  Scrape any major carp build up off the fan blades .   Grease the bearings on  older ones  .

Single phase, we had some tools to clear the segments on the com ..replace brushes etc

 
Back in the day when I did some work experience at a motor place I saw them cleaned with a pressure washer then dried out by sticking 415V through them and leaving them in the middle of the yard for a while.

 
We would always just dry scrape of the worst with a 6" or 12" steel rule and then a wash with what ever electrical solvent was not banned at the time, Armaclean, Electaclean, Safeclean etc.

 
My Steamer is a bit fierce.. 155c and 180bar and and nearly 18 litres a minute flow rate, Was a bit worried that it would tear all the varnish or whatever it is off the windings, Is only the outside that wants doing really...

Still, might be getting a new motor anyway!!!!

john,,,

 
We used to get a fair number of motors filled with quarry slurry.

Strip the motor, hose out the windings and then put them on 50V DC for a day to dry out. In the meantime change the bearings.

Test the windings before reassembly. 2x rated voltage, maximum permissible leakage to be no more than 1/10,000th FLC.

 
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