Agilent Technologies 5975T LTM GC/MSD, Troubleshooting And Maintenance Manual

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118 Troubleshooting and Maintenance Guide
10
General Maintenance
Maintaining the Vacuum System
Periodic maintenance
As listed earlier in Table 5 , some maintenance tasks for the
vacuum system must be performed periodically. These include:
• Checking the foreline pump fluid (every week)
•
Checking the calibration vial (every 6 months)
•
Ballasting the foreline pump
•
Replacing the foreline pump oil every 6 months
• Tightening the foreline pump oil box screws (first oil change
after installation, standard foreline pump)
• Checking the dry foreline pump diaphragms (typically every
3 years)
Failure to perform these tasks as scheduled can result in
decreased instrument performance. It can also result in damage
to your instrument.
Other procedures
Tasks such as replacing a Micro-Ion vacuum gauge should be
performed only when needed. See
Chapter 3 or the online help
in the GC/MSD ChemStation software for symptoms that
indicate this type of maintenance is required.
More information is available
If you need more information about the locations or functions of
vacuum system components, See
“Vacuum System” on page 181.
Most of the procedures in this chapter are illustrated with video
clips on this 5975 Series MSD User Information DVD.