Gee, my manuals for the ones I own state it clearly, but then one does have to read an owners manual to ascertain that data. Today, most people never bother to read an owners manual. They figure they can obtain that info on the net or just wing it.
Have you ever read in depth, the owners manual that came with your personal vehicle. Bet not. Bet it's tucked away in the glove box or somewhere forgotten about.
Amazing what useful info there is contained in it. It was written by people who know a lot more about your vehicle, or tractor than you think you do.
All my equipment including all my implements has an owners manual weather proof container affixed to them and the manual is inside for quick reference if I need it, which I do regularly.
If people just took the time to read their owners manuals, 90% of their questions are answered therein.