Removing The Lenses And The Spacers From The Lens Holder - Waters Xevo TQ-GC Overview And Maintenance Manual

4.9.2 Removing the lenses and the spacers from the lens holder

Required materials:
• Chemical-resistant, powder-free gloves
• 2.5-mm hex wrench
To remove the lenses and spacers:
Warning:
To avoid personal contamination with biologically hazardous, toxic, or corrosive
materials, and to avoid spreading contamination to uncontaminated surfaces, wear clean,
chemical-resistant, powder-free gloves when performing this procedure.
1. Ensure that the PCB holder assembly and its cable are removed from the lens holder (see
Removing the PCB holder from the lens
2. Using the wrench, loosen and remove the three screws that secure the source block.
Figure 4–35: Outer source assembly source block screws
Source block screw x 3
3. Remove the source block and the ceramic spacer.
April 27, 2020, 715005564 Ver. 01 (previously released as Rev. A)
holder).
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