Hmm - I just reviewed the manual, and I think maybe I did misinterpret it. The service intervals are in columns. The first column is the item, the second notes change/check/replace, the following columns are the hour intervals, up to 800 hours. On the far right it indicates, for some items, "every year" or "every two years" - but that column is labeled "Since then." I guess that means to only replace after two years if you put 800 hours on in those two years.

Oops.
BTW, it says to check the oil every day (of use), which I agree is a good idea - so why did Kioti design the dang tractor to require me to remove the side cowling just to check the oil?!
Would it have been that hard to route the dipstick to someplace NOT under the cowl?! What a PITA, especially w/ the FEL on. ARgh.