Need help! new at this tractor stuff. have a TYM 273hst . Used it spreading dirt and parked it for the night. Next day started tractor and no hydraulics. No steering ,no movement with loader or box blade. New filter on trans so it is not a collasped filter blocking flow.If it is a pump ,which one? There is one with the loader hoses coming out and two on other sideb which are gear pumps. Is there aqny way to test them? Thanks for any ideas B Smith