Bobcat Ramsomes Model M36-12

[quake1]

I have just bought a Bobcat Ramsones Model M36-12 with a 12HP Briggs and Stration engine. I have replace the swivel shaft bushings and tires on the front and have replaced one rear tire. My question is where can I get a manual that will tell me how to adjust the variable speed drive belt, the brake drive linkage and the belt drive linkage. I also do not know what type or weight of oil to put in the transmission turning the wheels. This seems to be a very good mower but I need to be able to make the fine adjustments. How long do the aluminum brake levers where all the adjustments are make last? I have broke the variable speed drive adjustment aluminum bracket and the belt got caught in the mower pulley. I have since make a steel bracket to replace the aluminum one were the adjustments are make. I have some wooded area on my lot and I was beating up a 22" high wheel mower trying to manage the undergrowth.
Thanks for any help,