Went back out to the shop after tacos, and finally got the
unit all apart……. it wasn’t “pretty”, but at least I don’t
think I broke anything.
The upper armature ball bearing OD was stuck in the
top cap’s housing.
I went ahead and pulled the driveshaft cable up through
the tube. The cable wasn’t stuck in the bottom of the
armature, but rather pinned to the shaft.
Good news, there are two brushes, but rather than
being 180 degrees “opposite” each other, they are
90 degrees apart. I could not see the grounded brush
until it was all apart.
That said, I have no idea where a ground connection
from the battery “connects” to the motor. There is
an empty hole in the bottom cap of the motor, but
I see nothing inside where it might connect, nor
do I see any external lug to hook a cable to.
Hopefully someone will know, or have some good photos
showing the ground cable.
Prepare to be boarded!