Maintenance - LC Packings SWITCHOS II User Manual

Maintenance and Troubleshooting
6.2
Maintenance refers to a variety of activities that should be performed on a
routine basis to optimize performance of the system. Many routine maintenance
activities can be readily performed by the user. Detailed information about the
maintenance of the Switchos Loading Pump is presented in the 'UltiMate
Micropump User's Manual'.
In some cases (e.g. replacement of critical components), we recommend that a
factory trained service engineer should be called to perform the operation. This
will ensure optimal long term performance and maximum uptime. LC Packings
provides a broad range of service support activities to ensure that the Switchos
Advanced Microcolumn Switching Unit is functioning in a suitable manner. These
activities can be customized to meet the specific needs of the customer. For
further information, please contact your local LC Packings office or
representative.
TABLE 6-1. Recommended Maintenance Schedule
Frequency
Every Day
Every 3 months
Every year
Note: The frequency of the various activities described above is a reasonable
starting point. As the user gains experience with the system, it will be found that
some activities can be done less frequently and other need to be done more
frequently. The frequency is dependent on a number of factors including the
nature of the sample and the mobile phase.
6-2

Maintenance

Operation
Before operating, check for any air bubbles in
the fluidic lines and degas the solvent.
Check that the fluidics connections do not leak.
Check that salts are not deposited by the
fluidics joints.
When using buffer solutions, flush the system
thoroughly after use with a solvent that does
not contain buffers/salts.
Inspect the condition of all tubing (cracks, nicks,
cuts, clogging).
Replace:
Check:
a) Contact your LC Packings representative.
D850R3
Rotor seal of the switching valves
Stator of the switching valves
Solvent Selection Valve for Leakage a)
User's Manual Switchos II