hi guys! I purchased a used New Holland lx485 this past fall to as the primary snow removal tool at my home. Worked great all winter until this past snow storm when all the hydraulic functions ceased to work. After doing a little reserch i can along the topic on the pressure switch failling so i ordered a new one, replaced it and to my luck nothing... Now my problem is that the skid steer is in the middle of my driveway is there a valve i can open to help this thing move free so i can tow it? I also have the service manual but cant seem to find anything about opening a relief valve or what have you. Thks