Waters Xevo TQ MS Operator's, Overview And Maintenance Manual page 186

4 Maintenance Procedures
To remove the APPI lamp drive assembly seals:
1. Remove the APCI probe and combined APPI/APCI source enclosure (see
"To remove the combined APPI/APCI source:" on page
Caution:
the bulb is fragile.
2. Remove the UV bulb from the lamp drive assembly and store it safely
(see "To change the UV lamp bulb:" on page
3. Remove the 2 lamp-drive cover screws, above the bulb-extraction
plug-aperture.
Caution:
lay it on a smooth surface. Laying the source enclosure face-first
on a hard object or other protrusion can smash the glass window.
4. Clear an area, lay out the soft cloth or mat, and lay the source-enclosure
on its face.
186 February 11, 2013, 71500130002 Rev. D
To avoid personal contamination with
Warning:
biologically hazardous, toxic, or corrosive materials,
and to avoid spreading contamination to
uncontaminated surfaces, wear clean,
chemical-resistant, powder-free gloves when working
with the probe and source components.
To avoid electric shock, ensure that the
Warning:
instrument is in Standby mode before commencing this
procedure.
To avoid damaging the UV bulb, handle it with care;
To avoid damaging the source enclosure, take care to
68).
181).