The PTO; could be two different ones. Gear driven (3 positions) or hydraulic driven (IPTO).
Power Steering; pull the front grille off and check for leaks (engine running). Check for slop/play in the spool linkage.
Ft. axle pivot bushings; There are grease fittings, but seldom serviced.
3-point; As strong as other MF tractors. No external Hyd filter. Internal filter/strainer can be serviced by removing (Gear driven) PTO shift plate. If it has IPTO, lift cover must come off to service filter.
Engine; Mine is strong, (rebuilt it) It does like gasoline.
Mine has IPTO