Replacing The 12-Port Valve - Thermo Scientific Dionex AutoTrace 280 Operator's Manual

5.14 Replacing the 12-Port Valve

Replace the 12-port valve if the valve continues to leak after both the rotor and
stator have been replaced.
Parts and Tools Needed
•
1/4-in wrench
•
#2 Phillips screwdriver
•
12-port valve and motor (P/N 071329)
Remove the Defective Valve
1. Remove the solvent lines from the solvent reservoirs.
2. Select the Prime Solvents diagnostic method:
a. Press
b. Press
c. Press
3. Press CONT
4. Turn off the Dionex AutoTrace 280 power switch and disconnect the power
cord from both its source and from the Dionex AutoTrace 280 right-side
panel.
HIGH VOLTAGE—Disconnect the main power cord from its source, as
well as from the right-side panel of the Dionex AutoTrace 280.
HAUTE TENSION—Débranchez le cordon d'alimentation principal de
sa source et du panneau de droit-côté du Dionex AutoTrace 280.
HOCHSPANNUNG—Ziehen Sie das Netzkabel aus der Steckdose und
der Netzbuchse auf dem rechten Seitenteil des Dionex AutoTrace 280.
5. Open the left-side door. Disconnect all of the fittings on the 12-port valve
stator. If a fitting is too tight to be removed, loosen it with a 1/4-in wrench.
Doc. 065330-05 03/2020
to display the
LOAD LOADING METHOD
LOAD to increment the displayed method to 29.
once to select method 29.
CONT
to run the method.
5 • Service
screen.
109