Thermo Scientific SOLA II Flare, User Manual

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Appendix B
Rotary Valve Service
Figure B–8.
9. Take care to hold the rest of the subassembly together, and slide the O-
Ring plate off the drive shaft. Refer to reassembly instructions in
Assembly if the subassembly does come apart).
Replacement The O-Rings to be replaced are in the two end caps and the O-Ring plate. The
internal end cap O-Rings are easier to access if the washers and bearing are
removed. Follow the steps below.
1. Use a small screwdriver or awl to remove the old O-Rings, being careful
not to scratch the metal.
2. Use a lint-free tissue to clean the O-Ring grooves as completely as
possible.
3. Upon installation, coat each new O-Ring with a thin layer of Dow
Corning DC-111 (or similar silicone lubricant).
Figure B–9. Locations of O-Rings
Thermo Scientific SOLA II Flare User Manual B-9