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7
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Maintenance and Service
7.4
Routine and Preventive Maintenance
7.4.1
Maintenance Plan
Page 118
Optimum pump performance, maximum uptime of the pump, and
accurate results can be obtained only if the pump is in good condition
and properly maintained.
Perform the maintenance procedures in the table on a regular basis. The
frequency given in the table is a suggestion. The optimum frequency for
maintenance depends on several factors, such as the types and amounts
of samples and solvents used with the pump.
Frequency
What you should do...
Daily
Inspect the flow connections for signs of leakage or blockage.
Inspect the flow connections for indications of salt deposits.
Inspect the flow connections for indications of air bubbles. Degas
the solvents and purge the pump if necessary.
If the solvent is pure water or an aqueous buffer, replace the
solvent in the reservoir on a daily basis.
Check the liquid level in the seal wash reservoir. Fill the seal wash
reservoir with fresh seal wash liquid if required.
When you use buffers or salt solutions, flush the pump thoroughly
after use with an appropriate solvent that does not contain buffers
or salts.
Regularly
Replace the wash liquid in the seal wash reservoir with fresh liquid.
Rinse the reservoir thoroughly before filling it. Use a high-purity
solvent for rinsing.
Test the seal wash system for leakage (see
Inspect the flow connections for damage, such as cracks, nicks, cuts,
or blockage.
When you use additives, inspect the pump for leakage once a
month.
Test the permeability of the inline filter or static mixer, depending
on which component is installed.
To avoid contamination of the degasser, prepare fresh solvents,
clean the solvent lines, and flush the degasser.
Check that all warning labels are still present on the pump and
clearly legible. If they are not, contact Thermo Fisher Scientific for
replacement.
Vanquish Pumps (VH-P10) Operating Manual
section 7.5.1, page
125).
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