Preventive maintenance
Echion Operator Manual 810770 67
4. Put the end of the push tool against the spacer tube inside the cylinder.
5. Tap on the end of the push tool with a rubber mallet to push the bottom seal and the hoop out of
the high-pressure cylinder.
6. Take the spacer tube out of the cylinder.
7. Disassemble all of the parts.
8. Examine the cylinder. If the area around the bore is marked or pitted or has rough edges or
burrs, remove the defects with a nonstick scouring pad.
9. Cut a nonstick pad in half. Put half of the pad in the end of the cylinder. Put 1 thumb in each end
of the cylinder and push down evenly on the pad while rolling the cylinder back and forth.
10. Clean the inner surfaces of the cylinder with a towel and isopropyl alcohol.
11 . Use a 1/8-inch hex wrench to remove the low-pressure poppet screw from the check valve.
12. Tape a sheet of lapping paper on a granite lapping block. Make sure that the paper is smooth
and flat.
Nonstick scouring pad
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