Waters Xevo TQ MS Operator's, Overview And Maintenance Manual page 127

Caution:
clean chemical-resistant, powder-free gloves during this
procedure.
To fit the ion block assembly to the source assembly:
1. Fit the ion block assembly to the PEEK ion block support.
2. Use the combined 2.5-mm Allen wrench and cone extraction tool to fit
and then slowly tighten the 4 ion block assembly securing screws
sequentially and in small increments.
3. Open the source isolation valve (see
valve" on page
4. Close the source enclosure.
To avoid recontaminating the ion block assembly, wear
94).
February 11, 2013, 71500130002 Rev. D
Cleaning the extraction cone
"Operating the source isolation
127