Before ebay gobbled my password I had looked on there several times but could not find an auction that included my year or S/N, I sent several emails to various sellers for more info but no replys as yet. I had back surgery in May so not looking extremely hard.
Jim I still cannot log into ebay but I got in thru the link you provided and found a Service Manual from 1990 and an Op Manual from mid 1993 at reasonable prices and ordered them. I hope they will be close enough for a 1991 machine. Both were less than half what BobCat asked for the Op Manual.
It is pretty sandy where I live so the 753 is going to get a set of steel tracks over the tires. Just need my back to get healed up enough to operate it.
Well I have gotten both manuals, The OP Manual is a Bobcat original and the Repair Manual is a photocopy It is pretty good a few pictures are a little dark and the identifying numbers hard to make out but pretty good. The hydraulic diagrams were originally in color and now black and white.
My biggest question now is Bobcats prefix numbering system. This 753 S/n starts 5086 and nothing tells me what that represents. The OP Manual lists the prefixes for base and premium and they both start 51xx. My 753 has the premium instrument cluster (BOSS??) . I guess I may find out eventually.