Cleaning and replacing seals and plungers 4-17
Inserting the plunger
3. Press Run/Stop to start the pump. When the plunger is fully retracted,
press Run/Stop again to stop the pump.
4. With the indicator rod hole oriented to the upper right, reinstall the
head support assembly. Alternately tighten the four screws. Do not
overtighten.
5. Wet the plunger seal and plunger with methanol.
6. Gently slide the pump head onto the plunger and alternately tighten the
two bolts. Check for even head alignment by observing the gap between
the pump head and the pump head support assembly.
7. Set the Flow parameter to 0.3 mL/min, then press Run/Stop to start the
pump. Pull out and release the indicator rod. If the rod does not snap
back easily, the head is misaligned. Stop the pump, loosen the pump
head, then repeat steps 6 and 7.
8. Press Run/Stop to stop the pump.
9. Reconnect the inlet and outlet tubing to the pump head.
10. Reconnect the eluent line to the pump inlet manifold.
11. Remove the fitting plug from the pump outlet, then reposition the eluent
reservoir.
Snap-ring
pliers
Plunger
insertion
tool
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