I looked at a 4911 today, only problem is that the hydraulic remote lever felt loose as in it did nothing, and the three point hitch didn't work. The pump was turning ( I could hear it) and it had oil in the transmission. I had all the levers in the right position. Any idea what could be wrong? And what parts might cost? What would a 4911 be worth In this condition? Engine runs good and gears all work good too. Good tires as well.