I acquired a non running SMTA, and know nothing about the history of the tractor. I have it starting, running and driving good. However, the hyd system is not working. It looks like the tractor was used for some time with the live hyd pump plugged off and the hoses to the Christmas tree area were missing. When I remove the two metal plugs from the pump very little oil tricked out. I put new pressure and suction hoses on and filled the suction hose with oil, cranked the motor over but no oil came out. I connected the suction and pressure hoses to the reservoir filled reservoir and started the tractor, no oil going to the remote cylinder. From what I have read using the tractor as they did with the pump plugged off may have ruined the pump. Anyone been down this path before? Any ideas appreciated before I tear pump down.