Preventive maintenance
116 811390 Operator Manual DynaMAX 550P/560P/575P Waterjet Pump
20. Make sure that the hoop edges are even with the surface of the cylinder. If the edges are not
even with the surface of the cylinder, put the nonstepped end of the push tool on the hoop and
tap the push tool with a rubber mallet.
21. Put the end of the check valve into the seal. Tap on the small end of the check valve with a
rubber mallet until it is touching the cylinder end.
22. Turn the cylinder over so that the check valve is on the bottom. Put 1 hand under the bore at the
bottom of the cylinder to catch the spacer tool and to prevent the spacer tube from sliding out.
23. Use the same procedure to install the second seal and the hoop in the high-pressure cylinder.
24. Put the cylinder and the check valve on to the plunger by pushing on the end of the check valve
until the cylinder is touching the seal housing.
Install the high-pressure end caps
1 Stud
2 Low-pressure water fitting
3 High-pressure end cap nuts
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