1.104 HYDRAULICS Outlet section (PVP) (26) Assembly General 1. Assemble the outlet section (PVP) in the reverse order to dismantling. Take care not to damage the main body when installing the components. The main components of the outlet section (PVP) are the main body pressure raising spool, pilot valve assembly and a pressure relief valve. Dismantling and assembly of the section is limited to these components. 2. When the pressure relief valve is assembled, screw in the threaded stop (3) the number of turns noted during the dismantling procedure. Dismantling 3. The pressure relief valve must be tested and adjusted as necessary, after the valve has been fitted to the machine. 1.
Remove the pressure relief valve as follows. Remove the blanking plug (1) from the main body (2). Unscrew the threaded stop (3) with an Allen key, and remove the O-ring seal (4), spring (5) and seat (6). Make a note of the number of turns needed to remove the stop (3). 2. Remove the pilot valve as follows. Remove the stop (7), O-ring (8), spring (9), seating (10) and spring (11) from the main body (2). 3. Remove the compensator valve as follows: Remove the plug (12) from the main body (2). Remove O-ring (13) compensator valve (14) and spring (15). 4. Clean the main body in an approved solvent and dry using an air jet, do not use cloths or paper wipes. 5.
Clean the pressure relief valve, pilot valve and compensator valve in an approved solvent and dry using an air jet, do not use cloths or paper wipes. 6. Examine the main body for wear, burrs, blocked grooves or other damage. If any damage or wear is found, the main body (2) must be replaced. 7. Examine the pressure relief valve for damage or wear. If any damage or wear is found, the valve must be replaced as a unit, it comes complete with all necessary O-rings. 1. Blanking plug 8. O-ring 2. Main body 9. Spring 3. Stop 10. Seating 4. O-ring 11. Spring 5. Spring 12. Plug 6. Seat 13. O-ring 7. Stop 14. Compensator valve 15. Spring 8. Examine the pilot valve for damage or wear.
If any damage or wear is found, the valve must be replaced as a unit, it comes complete with all necessary O-rings. 9. Examine the compensator valve for damage or wear. If any damage or wear is found, the PVP must be replaced, it comes complete with all necessary O-rings.