First post, just found this site and seems to be such a great resource! I just inherited a Bobcat 310 Skidsteer and am pretty excited to get it back into proper operating shape. Recently rebuilt all four of the leaky hydraulic cylinders and am now chasing other leaks. I noticed that when operating, I get fluid draining out of the upper jackshaft on the pulley side of the chaincase. Was hoping for guidance on repairing this. I just was able to get a hold of the factory service manual and reviewed the instructions for removal and installation of that jackshaft but did not notice a mention of a seal. Do I need to pull it to make the repair? Also, is there a good resource for parts diagrams?