Got my new motor yesterday, but I haven't gotten it installed yet. See Chuck's e-mail below that he sent last week for possible description of the problem. Based solely on customer service I would buy another one tomorrow for another cart if I had another cart!!!!
Buddy,
I'm glad you've already checked the differential fluid level. The
reason we suggested this first is that we have heard (and seen
personally) many cases where there was little to no fluid in the
differential. This quickly causes bearing issues and that is why we
suggested it first.
With your additional description of the problem, there are a couple of
other possibilities, both in the motor and in the axle/hub assembly.
TO RULE OUT THE MOTOR AS A POSSIBILITY, WE ARE SIMPLY GOING TO MAKE YOU A REPLACEMENT UNIT AND SHIP IT OUT TO AS SOON AS POSSIBLE...Due to processing time, this won't leave here for a few business days. (We'll send a prepaid return shipping label with the motor to return
the suspect unit.)
The possibilities in the axle/hub assembly I mentioned might be a
stripped out hub. I hear about this frequently from the golf car
shops around the country. The hub that the wheel lug bolts go through
is assembled onto the axle output shaft on each side. Sometimes this
joint fails and can require replacement of the hub. This doesn't have
anything to do with the motor and if you discover that the hub is
loose, that could explain all of your symptoms. It might be worth
your while to investigate this as a replacement motor could obviously
not fix that problem.
The possibility in the motor would be a slippage of the 19T female
spline on the motor's main shaft. I've honestly only seen this occur
one time on the Advanced DC Motors, so its possible, but statistically
unlikely.
Chuck Koehl
Electrical Motor Products, Inc
Toll Free 877-455-1599
empinc@empinc.biz
4/29/10