Thermo Scientific thermoscientific Vanquish Pumps C, Руководство по эксплуатации

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7 • Maintenance and Service
Pumps C, Pumps F ( VC-Pxx, VF-Pxx)
Operating Manual Page 141
• Dual pump: To identify the correct installation position, note the
labeling on the U-tube (capillary from working cylinder to
equilibration cylinder) (
L for the pump head of the left pump or R for
the pump head of the right pump).
Installation of new pump heads (replacement pump heads)
• With binary pump and dual pump: New pump heads can be installed
in either position when installed for the first time. They have no
label on the pressure sensor cable or U-tube. For easier
identification during future maintenance, consider labeling them
according to the installation position (
L for the left pump head or R
for the right pump head).
• To protect the pistons during shipment, the spacing tool is installed
between the seal wash plate and the pistons. Remove the spacing
tool. Be careful not to pull out the pistons any further.
Figure 39: Removing the spacing tool
No. Description
1 Seal wash plate
2 Spacing tool
3 Pistons
Follow these steps
1. Insert the pump head into the pump and tighten the pump head
screw (recommended torque: 10 Nm).
2. On the pump head, reconnect the following tubing and capillaries:
¨
On the pump head inlet, reconnect the tubing. Avoid cross-
threading.
¨
Connect the seal wash lines to the tubing connectors on the
pump head.
3. Reconnect the capillary that connects the pump head to the purge/
sensor unit. Observe the following:
Install the capillary in the direction of solvent flow (indicated by the
arrow on the capillary).