The lockout valve is down where the front hydraulic hookups are. It should be a t-handle valve. It should be open/close just like a regular valve. Did the deck operate properly before?Been busy with other "must do" projects. Did get around to checking the oil level. it is fine. Although i discovered the seat will not slide forward to make easy access to the dip stick. The seat seems to be locked in place; even when moving the release handle.
Back to the hydraulic problem. Should I look next at the lockout valve? If so, where is it and how do i go about fixing it? Keep i mind that I am very mechanically challenged.