I edited your model number to include the 110 in front of what you had, so the full model number should read, 110.24934200
. Lots of people miss that for some reason.
Chances are you simply need to replace the motor coupler.
Here are some instructions on how to do just that.http://appliancejunk.com/motorcoupler.pdf
Please let us know what you find or if you have any other questions.