Waters Xevo TQ MS Operator's, Overview And Maintenance Manual page 188

4 Maintenance Procedures
Take care not to drop the screws inside the lower cover.
Tip:
Lamp mounting flange
Mounting-flange screw (4-off)
11. Slide the lamp assembly, shaft, and flange out of the APPI source
enclosure.
The cables remain attached to the shaft, which you fully withdraw
Tip:
and lay on the bench beside the source enclosure.
188 February 11, 2013, 71500130002 Rev. D
PEEK insulator
TP03206
Insulator retaining
screw (2-off)
TP03205
Repeller electrode
Electrode screw