Waters Xevo TQD, Operator'S, Overview And Maintenance Manual

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Cleaning the ion guide assembly 4-55
18. Hold the sampling cone assembly so that the cone gas nozzle handle is
oriented horizontally and at the top, and then slide the sampling cone
assembly into the ion block assembly.
19. Grasp the sampling cone assembly handle, and use it to rotate the
sampling cone assembly through 90 degrees.
20. Fit the ion block assembly to the source assembly (see page 4-43 ).
Cleaning the ion guide assembly
Clean the ion guide assembly if cleaning the ion block and isolation valve fails
to increase signal sensitivity.
Removing the ion block assembly and ion guide from the source
assembly
Required materials
• Chemical-resistant, powder-free gloves
• 3-mm Allen wrench
• O-ring removal kit
To remove the ion block assembly and ion guide:
1. Remove the source enclosure from the instrument (see page 4-8 )
2. Remove the ion block assembly from the PEEK ion block support (see
page 4-37 ).
Warning:
The source components can be contaminated with
biohazardous and/or toxic materials. Always wear chemical
resistant, powder-free gloves while performing this procedure.