HyPrecision 50S/60S/75S Operator Manual 808690 109
5 – Preventive maintenance
Preventive maintenance
Repair the high-pressure cylinders
Required parts, tools, and materials
11210-30 30-micron lapping paper
Clean, lint-free towels
Nonstick scouring pad
Isopropyl alcohol
Emery clot (no coarser than 120 grit)
1. Put the cylinder on a flat surface.
2. Examine the end of the cylinder. If the area outside of the bore is marked or pitted, rub the defects with emery
cloth and then with a nonstick scouring pad.
3. Examine the edges of the cylinder bore. If the bore has rough edges or burrs, rub the defects with an emery
cloth.
4. Cut the nonstick scouring pad in half. Put half of the pad in each end of the cylinder. Put 1 thumb in each end
of the cylinder on top of the pad and push down. Push evenly on the pad while rolling the cylinder forward
and backward.
5. Fold or cut the lapping paper to make 2 pieces, each approximately 3 cm (1-1/4 inches) wide
by 8 cm (3-1/4 inches) long.
Service Interval
Repair the high-pressure cylinders
After every 3,000 hours of operation or if the cylinder is
chipped or cracked
Nonstick scouring pad
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