[Milsurplus] Dynamotor Lubrication

[Ken Kinderman]

Hello everyone,

Finally getting around to collecting all my DM-32's,DY-8's etc. to check the
brushes and lube the bearings.


Opening the bearing cap at the end of the shafts reveals a kind of shield
over the actual balls themselves. I can pick out the old grease with a
toothpick, but can't get between the balls.

Question: is this the limit of the access to the bearing? Seems like there
could be a lot of crud on the inner side of the bearing that I could be
missing.

I am flushing the bearing carefully with mineral spirits while keeping the
dynamotor shaft horizonatal so as not to let the dilute crud fall into the
commutator.

Is this the best that can be done? Or is there a secret to getting deeper?

Using Mobil SHC-100.

Thanks,

Ken
W2EWL