4/5/2012 6:04 PM
We have two 5510's that both have had major wheel motor and pump issues. Both, fortunately, have been covered under warranty and both our vendor and Toro have done an excellent job stepping up with the repairs with no questions asked. Both machines were a little over one year old when we first started noticing the same issue you did. Was worse in mow than transport, and way worse when trying to go up a hill. The first one had to be winched on the truck for repair.
Since having the first issue, I've talked to several other mechanics and Superintendents that have stated they have had the same issues. Each time Toro has covered under warranty. Seems to have been a bad batch of wheel motors, but not sure.
Hope this helps.