Preventive maintenance
DynaMAX 550P/560P/575P Waterjet Pump Operator Manual 811390 121
Repair the bleed-down valve
Parts, tools, and materials
Do this when the pump is not operating.
Remove the bleed-down-valve from the pump
1. Turn the primary breaker disconnect lever on the electrical enclosure door to OFF.
2. Turn
OFF the supply water to the pump. Make sure that the water pressure gauges show 0.0 bar
(0 psi).
3. Turn
OFF the compressed air source.
4. Turn
OFF the electrical main (line disconnect switch). Use standard lock out-tag out procedures.
5. Disconnect the compressed air hose from the air fitting on top of the actuator.
6. Disconnect the water drain tube from the bleed-down valve.
Bleed-down valve repair kit
3/4-inch open-ended wrench
5/8-inch open-ended wrench
13/16-inch open-ended wrench
1-inch open-ended wrench
1-1/8-inch open-ended wrench
3/4-inch open-ended crowfoot wrench or socket
Phillips screwdriver
Torque wrench
Clean towels
Isopropyl alcohol
High-pressure antiseize lubricant such as
Blue Goop or Pure Goop
Wooden dowel
Recommended Materials
Vise
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