Vacuum pump maintenance 7-3
• Use tweezers and pliers whenever possible.
• If nitrile or lint-free cotton gloves are used, take care not to leave fibers
in sensitive areas.
• Avoid touching sensitive parts with fingers.
• Before reassembling and replacing dismantled components, inspect
O-rings and other vacuum seals for damage. Replace with new ones if in
doubt.
Ensure that all parts are correctly refitted and/or adjusted, and that adjacent
components were not been inadvertently disturbed.
Vacuum pump maintenance
Refer to the manufacturer’s manuals, supplied with the instrument, for
details of the vacuum pump maintenance procedures.
GC interface maintenance
GC interface maintenance is confined to changing the injection port septum,
which allows reference material to be injected into the GC interface. The
septum is normally leak-tight, however, it can start to leak when repeat
injections of reference material have been made.
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