Preventive maintenance
76 810770 Operator Manual Echion
5. Remove the top cover and the front panel. Refer to Inspect the pump on page 39 for
instructions.
6. Disconnect the compressed air hose from the air fitting on top of the actuator.
7. Disconnect the water drain tube from the bleed-down valve.
8. Use 13/16-inch open-ended wrench to loosen the high-pressure fittings attached to the
bleed-down valve body.
9. If the pump-mounted plumbing kit is installed on this machine, loosen the high-pressure fitting
near the bleed-down valve.
10. Remove the bleed-down valve assembly from the pump.
11 . Remove the outlet adapter from the valve body.
12. Remove the seat and the flow reducer from the outlet adapter.
13. Remove the actuator from the valve body.
14. Push a dowel through the bottom of the valve body to remove the seal, the needle guide, and
the needle.
15. Put high-pressure antiseize lubricant on the seat.
16. Put the flow reducer into the outlet adapter.
17 . Put the seat into the outlet adapter.
18. Install the outlet adapter in the bleed-down valve body. Use a torque wrench to tighten the
adapter to95N∙m(70lbf∙ft).
19. Put the needle through the needle guide and the valve seal. Make sure that the point of the
needle faces the seal.
20. Put high-vacuum grease on the red O-ring on the valve seal. Make sure that the red O-ring on
the valve seal faces away from the needle.
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