Dionex ASE 100, Operator'S Manual

Page: 81 / 150

5 • Service
Doc. 031842-01 5/02
5-11
5.4.5 Reinstalling the Outlet Check Valve
1. The outlet check valve assembly housing has a 10-32 port. (This is the
smaller of the two ports.) Place the outlet check valve cartridge
(P/N 057346) in the outlet check valve housing so that the arrow
points inward.
NOTE When correctly installed, the arrow on the
outlet check valve housing points away from the
pump.
2. With the pump inverted, reinstall the check valve assembly. Tighten
the check valve just enough to seat (25 in-lb torque); tighten a little
more only if it leaks.
5.4.6 Reinstalling the Pump
1. Reinstall the pump on the component panel.
2. Reconnect the red gas line to the left press fitting on top of the pump.
Reconnect the transparent blue gas line to the right press fitting.
3. Reconnect the solvent lines to the inlet and outlet check valve
housings.
4. Reconnect the electrical connector to the pump PC board.
5.4.7 Completing the Procedure
1. Reinstall the right side panel:
a. Hold the panel against the right side of the system. Engage the
small tabs on the top and bottom of the panel with the slots in the
chassis. Pull the panel forward until it locks into place.
b. Replace the two Phillips screws on the inner front panel.
2. Carefully align the lower trim panel with the edges of the instrument,
and then gently push the panel into place.
Overtightening may damage the pump head and the check
valve housing and crush the check valve seats.