The best thing to use is the Bobcat "orange" Hydraulic fluid. Actually you dont use hydraulic fluid in a skid loader you need to use hydrostatic transmission fluid. Drive relief pressures are in...
First locate the drain hose, by opening the rear door and looking at the bottom of the engine the using 2 wrenches 7/8,size or a 7/8 and 3/4 remove the capping nut after the engine has been warmed up