I need the operators manual and the wireing diagram for a snapper lt140h38avb series a hydro lawn tractors 14hp model 287707 type o228-01 code 940524a

Hi,
I separated your post so it did not get "lost." Snapper does have manual onlinem but since Briggs now owns them, some are mixed up with engine manuals. Try:

http://bsintek.basco.com/BriggsDocumentDisplay/dffpqJvLlSZk.pdf

And its model designation is 80561.
Peace,
Clarke