1200 Series Quarternary Pump User Manual 91
Maintenance
7
Simple Repairs
Seal Wear-in Procedure
1 Place a bottle with 100 ml of Isopropanol in the solvent cabinet and place a
tubing (including bottle head assembly) in the bottle.
2 Screw the adapter (0100-1847) to the AIV and connect the inlet tube from
the bottle head directly to it.
3 Connect the restriction capillary (5022-2159) to the purge valve. Insert its
other end into a waste container.
4 Open the purge valve and purge the system for 5 minutes with isopropanol
at a flow rate of 2 ml/min.
5 Close the purge valve, set the flow to a rate adequate to achieve a pressure
of 350 bar. Pump 15 minutes at this pressure to wear in the seals. The
pressure can be monitored at your analog output signal, with the handheld
controller, Chemstation or any other controlling device connected to your
pump.
6 Turn OFF the pump, slowly open the purge valve to release the pressure
from the system, disconnect the restriction capillary and reinstall the bottle
with the solvent for your application.
7 Rinse your system with the solvent used for your next application.
This procedure is required for standard seals only (5063-6589), but it will definitely damage
the normal phase application seals (0905-1420).
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