7 Maintenance
198 July 29, 2013, 715003794 Rev. B
Tip: For information about isolating problems in the sample management
system, see Chapter 8.
Maintaining the sample management system involves these tasks:
• Replacing the lower needle wash frit
• Replacing the syringe
• Replacing the needle and seal pack
• Cleaning the sample compartment
For a complete list of spare parts, see Appendix C.
The following two figures illustrate the various assemblies and components of
the sample management system. The table titled “e2695 Sample management
system assemblies/components:” on page 201 describes the functions of each
assembly and component.
Warning: To prevent injury, always observe good laboratory practices
when you handle solvents, change tubing, or operate the separations
module. Know the physical and chemical properties of the solvents you
use. Refer to the Material Safety Data Sheets for the solvents in use.
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