i just bought a 2000 863 used bob cat, got it home and found the aux hyd flow switch doesn,t work correctly.the right joy stick(sitting in the seat) has a switch that moves left to right like a toggle switch that is supposed to change the flow direction of the aux hyd. more often than not i doesn,t work , it always works to the left but hardly ever works if you move it to the right.any help would be appreciated. tks blindman