Maintaining 600E Pump Components 73
Figure 4-13 Outlet Check Valve Assembly
5. Place the second rulon washer over the seat.
6. Fit the filter retainer into the rulon washer.
7. Place the cup filter inside the filter retainer.
8. Place the third rulon washer on top of the cup filter.
9. Turn the pump head upside down and screw in the outlet check housing.
10. Hand tighten the assembly.
11. Replace the pump head.
12. Tighten the check valve assembly to seal.