Appi/Apci Source-Replacing The Appi Lamp Drive Seals; Removing The Appi Lamp Drive Assembly Seals - Waters Xevo TQD Overview And Maintenance Manual

APPI/APCI source—replacing the APPI lamp drive seals
Warning:
ensure the integrity of the source exhaust system. The APPI lamp
drive assembly O-rings listed below must be renewed at intervals
not exceeding 1 year, exactly as described in this section.
The following APPI lamp drive assembly O-rings must be renewed at
intervals of no greater than 1 year:
• UV lamp bulb sealing O-ring
• Mounting shaft O-rings
• UV lamp mounting flange O-ring
An automatic pressure test runs each time you close the source enclosure
Tip:
and when the instrument starts.

Removing the APPI lamp drive assembly seals

Required materials
• Chemical-resistant, powder-free gloves
• Combined 2.5-mm Allen wrench and cone extraction tool
• 3-mm Allen wrench
• Small Phillips (cross-head) screwdriver
• Small Pozidriv
• 20-cm (8-inch) length of 4-mm nylon tube
• O-ring removal kit
• The mounting-shaft insertion tool
• A suitable, clear working area on a bench
• A soft cloth or mat to protect the source enclosure window as it is laid on
its face
APPI/APCI source—replacing the APPI lamp drive seals
To avoid leaking of biohazardous or toxic materials,
®
screwdriver
March 14, 2014, 715004387 Rev. B 191