I was moving some snow and lost the steering. The wheels turned all the way to the left. You can spin the steering wheel but nothing happens. I lifted the front end with the bucket and got the wheels off the ground. Then I could turn the wheels by hand, but when I let go the wheels snap back the left. I checked the hydraulic suction filter and it's not plugged. I blew through both ends of that filter and had no restriction. Shouldn't there be restriction against the flow? Any help would be appreciated the tractor is blocking the driveway and the wife needs to go to town. Thank you!