While you wait for answers, we may have found some information which could help you.
Click here for Put Deck Belt John Deerejohn deere 120 shuts down when engage mower deck?
What would cause belt to flip on a pully ?
John Deere L130 clutch problem?
John deere z425 54c mower want start?
i snapped off a head bolt how do i remove it?
John Deere L120 engaging blades kills engine?