Retracting The Piston - Thermo Scientific EASY-nLC 1200 Troubleshooting And Maintenance Manual

5
Routine Maintenance
Maintaining the Syringe Pumps

Retracting the Piston

72 Troubleshooting & Maintenance Guide
Set the pump piston to the fully retracted position by running the Purge Solvent script with 0
iterations.
❖ To retract the pump piston
1. On the touch screen, press Maintenance > Scripts.
2. In the Category list, select Prepare.
3. In the Name list, select Purge Solvent.
4. Press the Parameters tab.
5. In the Purge Iterations box, enter 0
Figure 53. Purge Solvent script with 0 iterations
6. Select the check box for the appropriate pump.
7. Press Start.
The piston moves backward until it reaches the 140 µL position.
8. To replace the piston seal, go to the piston seal replacement procedure
Piston Seal" on page 73
(Figure 53).
"Replacing the
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