Varian 990 dCLD II, Operation Manual

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Model 990 dCLD II Component Leak Detector
5-16
4. Using the VacuSolv presaturated cleaning wipes and swabs (Figure 5-19), thoroughly
wipe down all surfaces of the spectrometer tube body, magnetic pole pieces, and
ground slit plate.
Figure 5-19 VacuSolv Cleaning Wipe
NOTE
If the button TC does not appear to be contaminated it may be
reused after it is properly cleaned. To clean the button TC
properly, soak it in liquid VacuSolv (or Acetone) followed by an
isopropyl alcohol rinse. Dry the button TC thoroughly before
re-assembling into spectrometer tube.
NOTE
If you were seeing false system pressure readings prior to
overhaul, it may be best to replace the Button TC whether or
not you detect any physical signs of damage.
5. Carefully wipe down and inspect all O-rings before reusing. Replace all damaged
O-rings (Figure 5-20).
Figure 5-20 Inspecting the O-ring
NOTE
Varian recommends replacing all O-rings during routine
maintenance or during any maintenance procedure requiring
that the O-rings be removed.