1997 Craftsman EZ3 18.5 HP 46" tractor.
I was mowing along and stoped to look at something and when I tried to go again by letting up on the break I went no where.
What can I check?
Engine runs
Blades turn
Drive Handle moves freely
I think the belt is correct (not off) But I'll have to get underneathe to see.
Something msut have come loose.

Jim, March 2008

Your drive belt came off the very back pulley (transmission) and most likely jammed itself. You have to set the parking brake to release the tension on the pulleys, then pry the belt off from behind the mower under the rear fender. It should have alot of slack in it. You should have seen some blue smoke from the engine drive pulley smoking that belt (or at least smelled it.) Good luck.

Scott, July 2010