I bought a 02 s185 skid steer and decided to change all my fluids before using it. I went to change the chaincase oil and I see there's a hole on the bottom of machine with no plug.So I go to the front hoping that missing plug wasn't the one for the chaincase but it was.I do not have a drop oil in the chaincase.I took the front cover off and the chaincase and it looks ok but one chain has more slack then the other.So do I just fill it up with chaincase oil or is there somthing else I should be checking thanks for anyones help .Bill