Maintaining The Vacuum System; Periodic Maintenance - Agilent Technologies 5977B series Troubleshooting And Maintenance Manual

4
General Maintenance

Maintaining the Vacuum System

Periodic maintenance

Some maintenance tasks for the vacuum system must be performed
periodically. (See
• Checking the foreline pump fluid (every week)
• Checking the calibration vial (every 6 months)
• Replacing the foreline pump oil (every 6 months; every 3 months for
• Tightening the foreline pump oil box screws (first oil change after
• Changing the foreline pump exhaust filters
• Replacing the DP fluid (once a year)
• Changing the dry foreline pump tip seal (once a year)
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
help in the Agilent MassHunter GC/MS Acquisition 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
Most of the procedures in this chapter are illustrated with video clips on the
5977B Series MSD User Information media.
96
Table 9
CI MSDs using ammonia reagent gas, standard foreline pump)
installation, standard foreline pump)
"General Troubleshooting"
on page 91.) These include:
"Vacuum System"
5977B Series MSD Troubleshooting and Maintenance Manual
on page 35.) Refer to the online
on page 153.)