How can one determine if the hydro motor or the wheel motor is bad on a machine? Is there a way to check/test one or the other without buying a wheel motor or hydro pump? Dont want to buy one and the other one need be the problem. I have a 54" bobcat, and when you lock up brakes on the right the machine is very slow to make the turn. All the adjustments are open on the wheel motor, have changed the hydro filter, there was a shear pin or woodriff key that could of possibly worn out, or fallen out, neither is the case. I bought this mower used and havent gotten much use out of it this year because of this. Anyone have any ideas?