Agilent Technologies Helium G8610 Series Field Installation Instructions page 30

Vacuum Products Division
23. Clean the mating surfaces of the spectrometer body and header with isopropyl alcohol and a clean
lint free wipe. Agilent recommends use of the Vac-u-solv spectrometer cleaning kit (Agilent part
number 670029096).
24. Center the replacement metal gasket inside the bolt pattern and outside of the body cavity. To
prevent scratching of any sealing surface, do not use metal tools for this task (Figure 3-12).
25. Guide the spectrometer header into the pocket with the detector housing closest to the inlet.
26. Insert a screw with three Belleville washers into each hole and finger tighten (see Figure 2-11).
27. Follow the torqueing pattern in Figure 3-13). Torque screws to 40 in-lbs (4.5 N-m).
28. Re-torque screws to 90 in-lbs (10.2 N-m) following the same pattern. Go through the entire torque
pattern twice to ensure the metal gasket is firmly compressed.
29. Wait a minimum of five minutes, then torque the screws again in the same pattern (Figure 3-13) to
a value of 90 in-lbs (10.2 N-m). This wait period allows the washers to decompress.
Manual 699910005, Hot Ion Source Replacement
Figure 3-12. Spectrometer alignment
Figure 3-13. Tightening spectrometer header screws
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