Vacuum System 6
Troubleshooting and Maintenance Manual 97
Maintaining the Vacuum System
Periodic maintenance
As listed in Table 5 on page 68, some maintenance tasks for the vacuum
system must be performed periodically. These include:
• Checking the foreline pump fluid (every week)
• Replacing the foreline pump oil (every 6 months)
• Replace RIS Maintenance Probe parts (yearly)
Failure to perform these tasks as scheduled can result in decreased
instrument performance. It can also result in damage to your instrument.
Other procedures
Problems with any of the vacuum system seals in the analyzer usually require
the services of Agilent service personnel. See Chapter 2, “General
Troubleshooting” on page 25 and see the online help in the MassHunter
Workstation software for symptoms that indicate this type of maintenance is
required.
Vacuum System Components
The parts of the vacuum system are:
• Foreline (rough) pump
• 3 High-vacuum turbo pumps
• Analyzer chambers
• Collision cell cover
• Side plate (analyzer door)
• Removable Ion Source door and gate valve
• RIS chamber purge and vent valves
• Vacuum seals
• Calibration valves -EI, CI, Mass Reference
• Vacuum control electronics
• Vacuum gauges and gauge control electronics
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