A couple questions. There is a note on the machine that says that adjusting of the V belts are sometime necessary from time to time to refer to manual. I do not have the manual can you give me advise on how to do that. Also, there is a devise that where the blades go into that has a nut that can be removed to hold a fluid. What type of fluid do I put in there. It seems it had been leaking a redish color on the snow. I have 10 HP 26" machine, How many pounds of air is good for the tire pressure?