While you wait for answers, we may have found some information which could help you.
Click here for John Deere Drive Belt Lawn Mower
John Deere L120 engaging blades kills engine?
John DeereL111 mower deck does not engage. ?
was mowing with john deere lx172 just quit running , dead?
What would cause belt to flip on a pully ?
JD lawn mower LT133 wondering if clutch switch could be bad?
Mower won't stay running?