The Mending Shed link provided by PLS is fantastic!!! They had an online copy of a service manual for a model KMS90 mixer, which was close enough for my KMS150 that I was able to take the mixer apart and identify a broken worm gear.
I just placed an order with Mending Shed for a new worm gear assembly and some new grease. With shipping the order is less than $50.
I'll use mendingshed.stores.yahoo.net for all my appliance parts.
Many thanks to PLS!!!
Regards,
Dana
Dana Safford, April 2007