Just got my new 590 but haven't used it yet (except for about a minute's worth of mowing while the delivery guy was here yet). He told me that I was missing sections by going too fast. Didn't expect that. With my old Cub I could always zip along pretty good and it never seemed to lack for cutting. So I guess with these machines one needs to go a bit slower?
I read through the manual and see the suggestion to use JD oil. Certainly I'd think JD transmission oil is a necessity (would hate to take the chance that the IH hy-tran fluid I use on my Cub 129 would be ok for the Deere), but since the manual mentions that SAE 30 is ok, that's what I've always used with the Cub.
I was surprised to see how much has to come off (voltage regulator and fuel pump) in order to access the cooling fins and fan area..but certainly worth it to keep the areas clean. I'm so used to the intake fan being vertical on the Cub and is super easy to access and clean.
Another issue...how many use the wash port? I asked the delivery guy about possible rust issues from shooting so much water under there each time (as suggested) with the blades running. Good idea or not? I've always just reached under my deck and hand-removed as much clippings as I can. Does the washing do a pretty decent job?
Finally, any suggestions for a total "newbie" would be greatly appreciated! I had the dealer install the mulching kit and the guy gave me an extra set of blades..assuming these are regular rather than mulching blades (?) Can't recall exactly what he said about them.