Dionex ASE 150, Руководство оператора

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ASE 150 Operator’s Manual
80
Doc. 065207-02 9/08
3. Turn the pump head over so that the open end is down. The tan piston
guide (see Figure 5-12 ) should drop out of the head; if it does not,
gently tap the head on the workbench to dislodge the guide. Save the
piston guide (it will be reinstalled in
Step 7 ).
4. If tapping the head on the bench does not remove the piston guide,
use the wooden end of a cotton-tipped swab to pry the guide out of
the pump head. Discard the used piston guide.
5. To remove the orange high-pressure seal from the pump head, insert
the wooden end of a cotton-tipped swab and pry out the seal. Discard
the seal.
6. Hold the new high-pressure seal
(P/N 066162), with the smaller
diameter (ringed) side of the seal facing
down, and drop it into the pump head
cavity.
7. If the piston guide was easily removed
from the pump head ( Step 3 ), place the
original piston guide on top of the high-
pressure seal and firmly press it into place. This also seats the high-
pressure seal in the pump head.
Figure 5-12. Replacing the ASE 150 Piston High-Pressure Seal
Do not use a sharp tool (such as tweezers) to remove or install the
high-pressure piston seal. This will scratch the seal and the inside of
the pump housing; these scratches will prevent a proper seal and
allow leakage.
High-Pressure
Seal
Piston Guide