HyPrecision Predictive waterjet pump Operator Manual 810120 121
5 – Preventive maintenance
Preventive maintenance
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).
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).
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 187.
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