Appi/Apci Source-Replacing The Appi Lamp Drive Seals; Removing The Appi Lamp Drive Assembly Seals - Waters Xevo TQ-S Operator's, Overview And Maintenance Manual

4 Maintenance Procedures
5. Slide closed the instrument's source interface door.
APPI/APCI source—replacing the APPI lamp drive seals
Warning:
APPI lamp drive assembly O-rings listed below must be renewed
at intervals not exceeding one year, exactly as described in this
section.
The following APPI lamp drive assembly O-rings must be renewed at
intervals of no greater than one year:
• UV lamp bulb sealing O-ring
• Mounting shaft O-rings
• UV lamp mounting flange O-ring
An automatic pressure test is performed each time the source enclosure is
Tip:
closed 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.
208 February 28, 2014, 715002212 Rev. C
To ensure the integrity of the source exhaust system, the
®
screwdriver.