OK.... your tractor is a 1974. If it is original, then the hood and fenders will be painted Desert Sunset but the rest of the tractor will be Power Red.
The advice remains the same. Clean off the underside of the travel/lift valve. Locate the plug with the hex shaped hole. It is usually flush with the valve casting but it is directly below the area housing the spool that controls travel and about in the mid-point.
Let me know how you make out.