Check with your local dealer.Most Farmtrac tractors come with the operators manual.When I sell one I go through the operations w/manual in hand ,with the customer.
The sticker on the back of my 535 manual has the phone # (252)823-4151
FAX (252) 823 4576. email service@longagri.com
Of course, if the company in is receivership, who knows what's going on?
At worst, I could photocopy the 40 or so pages and snailmail to you.
Actually, the manual's organization(no table of contents!), quality of information and photos are pretty poor. Lots of repetition, indistinct syntax in detailed mechanical explanations, etc.
Post again if you can't find anything and are interested in the photocopies.