Tuesday, May 28, 2013

Water Damaged DC Motor Repair pt1






This one had been submerged for some time.

24 comments:

  1. I found future data in the hall effect of electric lines, AWESOME!!!!!!!
    I accidentally cut a 240v cable in the garage it was arcing next to my laptop and the website image changed I was older and my daughter as tall as I am.
    I thought this phenomena was disabled years ago! I guess not!!! AWESOME
    Energy Equals Life dot com

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  2. I have a DC 1.5v motor tiny thing.. but. it keeps doing a deep groaning grinding noise, oiled it but couple days later same thing...this is for a cuckoo clock to power sails for it please help !

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  3. what I like about this video is it can upgraded to 2 more brushed for increased current and power.

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  4. nope, I got it from my work, it was used in conjunction with a gearbox to wind up pool covers

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  5. where did you get this big motor ? in a copier machine ?

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  6. yeh i think I polished the comm bars on the lathe but that was all it needed.

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  7. its a 600W motor, not sure how you measure HP on a DC motor since they are a lot more different to induction motors

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  8. With a good lathe, as you have, you could do a very light surfacing on the commutators and it will improve performance of the motor. If I recall, you can also put a V shape into the brushes to further help performance and life span.

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  9. Sounded like Sabaton in the background, but how much HP does a motor like that have? It's an older video so I'm sure this was answered at some point, sorry if I am regurgitating the question.

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  10. thanks from a eletric novice

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  11. This one came off a swimming pool cover rolling machine, used to roll up commercial/Olympic size pool covers

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  12. What application was this motor used in? Was it for a power tool of some type?

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  13. I ended up cutting it off with a grinder, it turned out I had NOS bearings in stock for it and I had it finished that night.

    just gotta get around to putting the vid up.

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  14. When i worked for Dewalt, whenever we had to replace a bearing and couldn't get in behind it to pull it off, we would put it in vice, crush the outer race and remove the balls and cage, then clamp a bearing separator on the inner race and could press it off that way. Perhaps you needed to save the old bearing for reference in finding a replacement?

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  15. I've gone through some old universal motors which came out of old adding machines, and when I polished the commutator bars I always used cup leathers. They polish them up very well and will not take off any metal.

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  16. That should be a good motor once you're done with it.

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  17. nice job on that.. .will look forward to seeing the multi-wheel independent drive system some day!

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  18. lol it worked. nice job. the bearings should not cost more than $4.80 each.

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  19. Nice! good as new again! I'd do the same thing!

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  20. very nice! wasn't too hard!

    i'm working on getting a lil kawi 2-stroke going right now, vid on my channel!

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  21. Nice! Thats going to be a sweet lil motor once done. Good job.

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  22. nice free money

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  23. yeah, I was expecting worse damage. good news is we toss them out at work when they get as bad as this so I should have enough to make a multi-wheel independant drive system some day.

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  24. thats nothing i seen worse than this and i got them working

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