Hello chaps, what do we think of this motor?
It still works well; no burning smell or odd noises. As you can see, one corner of one of the brushes is chipped, but the top of both brushes are also being shaved off as the commutator seems to sit low in relation to the brushes. Clearly it has experienced a good deal of heat - it has indeed hit thermal cutout more than a few times. There was a notable amount of carbon dust in and around the motor bucket. The bearings seem very nice; the shaft turns smoothly, with no grumbling.
I should have removed each brush to have a closer look at the surface and lengths, but I didn't pay much attention to it since it still functions fine, and wasn't that interested in it initially. But I became curious after seeing the chipped brush, and so here we are.
I've thought about simply replacing the brushes, but since the top of the existing brushes are being peeled away, I guess the same thing will happen to the new ones (this isn't supposed to happen, right?). Since it's seen a lot of heat, I wonder how much life is left in the rest of it as well. Any idea why the commutator would be sitting lower than it should be? Cheers!