Posted by hd5 on November 07, 2009 at 14:55:58 from (98.22.52.246):
In Reply to: 135 generator posted by hd5 on November 07, 2009 at 07:16:43:
I just took it apart again, removed the brushes and put them back in again.
Without the armature in place I have continuity between the two posts.
but not to the case, when I put the armature back in I have continuity to the case from either post. Does this mean the armature is shorted?
Without the armature in place I can hook 12 volts to the two posts and create a magnetic field, it will pull a screwdriver to the side.
I am spinning it with a cordless impact wrench at approximately 1000 rpm and it shows about -.6 volt because the wrench is turning clockwise I suppose.
The brushes are in pretty bad shape but still seem to be making contact, if I had quick way to get brushes I would put them in now, but they will have to be ordered and if the armature is shorted it would be pointless.
It is a AC gen.
I will make sure after while that the brushes are not touching the springs
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