Thermo Scientific Vanquish VH-P10-A-02, Operating Manual

Page: 173 / 238

7 • Maintenance and Service
Vanquish Pumps (VH-P10-A-02) Operating Manual Page 173
7.11 Solvent Lines and Solvent Line Filters
Follow the sequence of steps for the maintenance procedure that you
want to perform:
• To replace solvent lines, see section 7.11.2 .
•
To replace the solvent line filter, see section 7.11.3, page 176 .
7.11.1 Emptying the Solvent Lines
When
To empty the solvent lines, for example, for maintenance or service
procedures or for long-term shutdown
Preparations
Turn off the pump flow and wait until the system pressure is down to
zero.
Follow these steps
Follow these steps for each solvent line that you want to empty:
1. Unscrew the cap of the solvent reservoir and remove the solvent
line together with the cap from the reservoir.
2. Start a purge cycle as appropriate.
3. Stop purging as soon as the solvent line is empty.
7.11.2 Replacing Solvent Lines
To replace solvent lines, follow the sequence of steps for the solvent line
that you want to replace:
TIP The flow path determines the pump inlet (component at which the
solvent enters the pump) and the solvent flow through the pump. With
the binary pump, the pump inlets are the solvent selectors. The
operating principle illustrates the solvent flow through the pump (see
section 3.2, page 33 ).