Replacing sample tubingFigure 12-4:
Procedure
1.
Turn off the sample and reagent pumps.
2. Luer fittings connect the sample tubing to the pump. Disconnect the tubing by
turning the fitting in the direction of the arrows shown in Figure 12-5.
3. Disconnect the other end of the sample pump suction tubing from the overflow
sampler. Pull the reagent injection tubing off the reagent injection tee.
4. Disconnect the other end of the sample pump discharge tubing from the flow cell.
Pull the air injection tubing off the air injection tee.
5. Disconnect the sample inlet and drain tubing.
6. Install the replacement sample pump suction and discharge tubing assemblies.
The assemblies look similar. To tell the difference, note the air injection tee in the
discharge tubing assembly has a larger diameter barb than the reagent injection tee
in the suction tubing assembly.
7. Install replacement sample inlet and drain tubing.
The sample inlet tubing is longer than the drain tubing.
Maintenance
Manual 59
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