I have a Bobcat 773. I was using my snowblower attachment. After using for a while I was unable to turn the snowblower off with the switches on the right handle. The snowblower ran continuously the rest of the time I used it. After shutting the machine down using the pressure relief switch, I disconnected the snowblower and put the bucket back on. Now the lift will raise and the bcket will tilt up, but will not lower or tilt down unless I turn RPM down low. I think I might have a stuck or clogged hydraulic solenoid. I don't have a manual that shows which solenoid it could be or where it is located. Any ideas?