5 General Maintenance
5975/5977 Series MSD Operating Manual 119
To Open the Analyzer Chamber
The analyzer chamber should only be opened to clean or replace the ion source,
change the detector’s EM, or to change a filament.
Materials needed
• Gloves, clean, lint-free
• Large (8650-0030)
• Small (8650-0029)
• Wrist strap, antistatic
• Small (9300-0969)
• Medium (9300-1257)
• Large (9300-0970)
Procedure
1 Vent the MS. (See “Vent the MSD” on page 104.)
2 Open the left side panel.
Electrostatic discharges to analyzer components are conducted to the quad
driver board, where they can damage sensitive components. Wear a grounded
antistatic wrist strap and take other antistatic precautions (See “Electrostatic
discharge” on page 115.) before you open the analyzer chamber.
The analyzer, GC/MS interface, and other components in the analyzer
chamber operate at very high temperatures. Do not touch any part until you
are sure it is cool.
Always wear clean gloves to prevent contamination when working in the
analyzer chamber.