Just a heads up if you find that the regulator is faulty and needs replaced. The replacement reg. I got from the JD dealer a couple months ago was made differently than the original. The original bolts were too short to work with the new one.
Went back and they gave me a couple new ones(metric), and problem solved.
Sorry I don't remember the length but they were long enough to go thru the reg. mounting holes plus maybe 1/2".
BTW, working space is very limited for R&R on the regulator.