MVP HVLS-1000, Operation Manual

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HV Series Fluid Section Operations Manual
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13. Remove the two piston cups, the piston cup backup,
and the piston cup spacer from the piston body.
14. Discard the two piston cups.
15. Using the piston body wrench, unscrew the piston body
from the piston adapter.
16. Remove the chrome ball and piston ball spring.
17. Discard the ball.
18. Remove the packing nut from the outlet body.
19. Use a wood dowel or clamshells to push the packing
set assembly out of the top of the outlet body.
20. Discard the packing set.
21. Clean and inspect the guide bearing, female compression
ring, male compression ring, wave spring, and spring
support ring.
22. Clean and inspect all parts to be reused; replace as needed.
Reassembling Fluid Section
1. Use MVP Red Grease to fill in the female side of each of the four packings in the packing set
and the female packing ring.
2. Wipe a light coat of red grease on the chrome ball.
3. Smear red grease on the inner radius of both piston cups.
4. Coat the threads on the packing nut with red grease.
5. Insert the spring support ring into the outlet body, followed by the wave springs.
6. Place the packing set assembly on top of the male packing ring.
7. Set the female packing ring on top of the packing set assembly.
Piston
Body
Piston Cup
Backup Ring
Piston Cup
Spacer
Piston Nut