Cleaning the generator commutator

Wed Apr 17, 2013 6:13 pm

The starting and lighting attachment owners manual has a article on cleaning the commutator with 00 sandpaper not emery or caborundum cloth.This would be 00 grit but what type of sandpaper would work? Ray

Re: Cleaning the generator commutator

Wed Apr 17, 2013 7:07 pm

We used crocus cloth in Aircraft School.

Re: Cleaning the generator commutator

Wed Apr 17, 2013 7:27 pm

Aluminum oxide sand paper. You can pick up some aluminum oxide sand paper at any hardware store since your reference says not to use emery.

I use emery sand paper, 600 grit, because I have it. Just clean out the grooves between the commutator segments.

Re: Cleaning the generator commutator

Wed Apr 17, 2013 9:04 pm

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Re: Cleaning the generator commutator

Wed Apr 17, 2013 9:28 pm

Jim that is the article that I read I guess what I am asking is where to find that type of 00 sandpaper Thank You Ray

Re: Cleaning the generator commutator

Wed Apr 17, 2013 9:33 pm

If memory serves, emery cloth contains iron particles and carborundom carbon particles which are both conductive to electricity which could cause short circuiting of the commutator by pieces left deeply embedded within the groves.

Re: Cleaning the generator commutator

Wed Apr 17, 2013 10:07 pm

Ray 59 wrote:Jim that is the article that I read I guess what I am asking is where to find that type of 00 sandpaper Thank You Ray
Pick up cheap sand paper with a 240 grit or higher number.