(ET) drive motor spins, but tractor won't budge

[Michael S Briggs <msbriggs alberti unh edu>]

I posted this on the forum, but figured I'd send an email to the list too:

While mowing today, my E15 suddenly stopped moving. The drive motor still 
spins, but no matter what gear it's in, the tractor doesn't budge.

What is the list of things I should check?

I restored the tractor about 5 years ago, but have never had any problems 
with the drive motor - so I don't really know much about how the motor 
connects to the axle.

Fixing this is going to be... interesting. I tore an intercostal muscle in 
my right side a few days ago, so even lifting my right arm is painful. 
Every time the tractor lurched forward today when putting it in forward it 
felt like Mike Tyson had just punched me in the ribs....

Thanks for any help!

Mike

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Michael S. Briggs, PhD
UNH Physics Department
(603) 862-2828
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