It depends on how old it is. Mine is the older version without the access door. I had to remove the deck and cover. The manual for the older model was very hard to find on line. I do not remember where I found it but the info on top says John Deere Horicon works and the DTAC solution number is m11867.
The newer models are covered in the manual that is very easy to find with a Google search.
Todd R, June 2010
