Preventive maintenance
DynaMAX 550P/560P/575P Waterjet Pump Operator Manual 811390 111
5. Put a small quantity of clean hydraulic fluid on the inner and the outer surfaces of the rod seal.
6. Put the rod seal onto the plunger with the wider side toward the hydraulic end cap.
7. Put hydraulic fluid in the narrow end of the seal housing.
8. Put the seal housing on the plunger with the narrow end toward the hydraulic end cap.
9. Push the rod seal into the seal housing.
10. Turn the seal housing so that the weep hole faces down.
11 . Push the seal housing tightly against the plunger bearing.
12. Turn the high-pressure seal backup so that 1 weep hole is in line with the seal housing weep
hole.
13. Put the high-pressure seal backup on the plunger and push it against the seal housing.
14. Make sure that the bottom weep holes are aligned.
15. If the proximity switch was removed for this procedure, reinstall it.
Do not push the rod seal into the hydraulic end cap.
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