HyPrecision 50S/60S/75S Operator Manual 808690 135
5 – Preventive maintenance
Preventive maintenance
13. Use a socket wrench to remove the seal backup screw from the valve body.
14. Use a wooden dowel to push the parts through the valve body.
15. Clean each part with a lint-free towel and isopropyl alcohol. Examine all parts for deterioration, corrosion, or
damage.
16. Discard the used parts.
17 . Put high-vacuum grease on the new needle.
Do not use soap, detergent, or solvents.