Object moved -> click "view books" beside were it says guest, enter model number and select messy, and you should be able to find online part diagrams....
above will most likely not do you much good...
basic operation.. (what knobs/levers) do, what type of oil to use, what type of maintenance to do and when... is covered in "operators manual" this stuff is not cover in parts manual and/or the shop manual.
the shop/service manual. is big old thick manual that a dealer might have, so techs can dig clear into a specific tractor and test things and put it all back together. full diagrams and instructions on it all. but this manual doesn't cover any of the other 2 noted above.
if you are a DIY'er i would suggest shop/service manual. it can be well worth the cost. and possibly save you more vs trying to guess what is wrong with tractor, when something eventually goes wrong with it. like all tractors.
operators manual, might be worth it, there normally fairly cheap, and some stuff is covered in it. but normally it is one of them ya flip through and then toss into a drawer and never look at it again.