Waters Xevo TQD, Overview And Maintenance Manual

Page: 126 / 250

4 Maintenance Procedures
126 March 14, 2014, 715004387 Rev. B
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 page 96 ).
4. Close the source enclosure.
Cleaning the ion block assembly
Clean the ion block assembly when cleaning the sample cone, cone gas nozzle,
and extraction cone fails to increase signal sensitivity.
Disassembling the source ion block assembly
Required materials
• Chemical-resistant, powder-free gloves
• Combined 2.5-mm Allen wrench and cone extraction tool
• O-ring removal kit
• Needle-nose pliers
To disassemble the ion block assembly:
1. Remove the ion block assembly from the source assembly (see page 119 ).
Notice:
To avoid recontaminating the ion block assembly, wear
clean chemical-resistant, powder-free gloves during this
procedure.
Warning:
To avoid personal contamination with biohazards or
toxic materials, and to avoid spreading contamination to
uncontaminated surfaces, wear clean, chemical-resistant,
powder-free gloves when working with the ion block assembly.