Repair6-8Part 104373ā03 2015 Nordson CorporationHigh-Pressure Ball Check Valve Rebuild (contd)3. See Figure 6-7. Pull the hydraulic housings (1) apart and remove theoutlet manifold (3) from the ball check cartridges (2).4. Unscrew the cartridges from the hydraulic housings.5. Thread the seat tool (4) into the seat (5). Slowly pull the seat out of thecartridge. Do not let the ball (8), ball cage (9), and spring (10) fly out.6. Remove the spring, ball cage, and ball from the cartridge.7. Place a new ball cage on a new spring.8. Insert the spring and ball cage into the cartridge.9. Place a new ball on top of the ball cage.4711658 9 1032 21 12Figure 6-7 Siphon Ball Check Rebuild1. Hydraulic housings2. High-pressure ball check cartridges3. High-pressure manifold4. Seat removal tool (5 /16 -18 x 1.25 in.screw)5. Seats6. O-rings7. O-rings8. Balls9. Ball cages10. Springs11. O-rings10. Lubricate and install a new O-ring (6) on a new seat.11. Install the new seat in the cartridge, with internal threads toward theoutside, opposite the ball.12. Remove the O-rings (2, 9) from the cartridge. Lubricate and install newO-rings.13. Thread the cartridges into the hydraulic housings until they bottom out.14. Assemble the outlet manifold and hydraulic housing assemblies.NOTE: Make sure the manifold outlet port faces toward the front of thepump.