Preventive maintenance
DynaMAX 550P/560P/575P Waterjet Pump Operator Manual 811390 11 9
3. Push the high-pressure poppet seat into the high-pressure antiseize lubricant in the check valve.
4. Put high-pressure antiseize lubricant on the threads of the output adapter.
5. Put the high-pressure poppet spring and the high-pressure poppet in the output adapter.
6. Put the output adapter in the check valve and tighten it by hand.
7. Torque the output adapter to 115 N∙m (85 lbf∙ft). Refer to Output adapter on page 185
8. Put high-pressure antiseize lubricant on the high-pressure connector threads.
9. Connect the high-pressure tubing.
10. Torque the high-pressure water fitting to 68 N∙m (50 lbf∙ft). Refer to High-pressure water
fittings (gland nuts) on page 185
CAUTION
Tightening the output adapter with the poppet in an incorrect position can cause
damage.
When the output adapter is correctly installed, the gap between the wide part of the
output adapter and the check valve is 10 mm (3/8 inch) and no threads are visible.
If the gap is too large or if threads are visible, make sure that the poppet parts have
not moved.
Make sure that some of the threads on the high-pressure tubing are visible at the
fitting. Refer to Special fasteners on page 180.
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