CI Maintenance 6
5977 Series MSD Operation Manual 163
3 Clean the parts as described in “To Clean the EI Ion Source” on page 137.
CAUTION
If the insulators are dirty, clean them with a cotton swab dampened with reagent-grade
methanol. If that does not clean the insulators, replace them. Do not abrasively or
ultrasonically clean the insulators.
Figure 30 CI ion source parts to be cleaned
Entrance lens
Ion focus lens
Drawout
cylinder
Drawout lens Source body Repeller