GE Sievers 900 Series Operation And Maintenance Manual page 180

To avoid exposure to the acidified water in the tubing, wear acid-resistant gloves,
protective clothing, and safety goggles or a face shield, when changing the pump
tubing.
Have paper towels available during the procedure in case water leaks from the old pump tubing
during the removal process. For an illustration of the parts mentioned below, refer to Figure 34 on
page 181.
1. If the Analyzer is taking measurements, press the Stop Analysis button.
2. Turn off the Analyzer by using the main power switch and unplug the power cord.
3. Open the Analyzer front panel by turning the two latches and swinging the panel door to
the left.
4. Locate the sample pump and tubing support bracket located at the bottom, right-hand
corner of the Analyzer (see Figure 34 on page 181). The support bracket is a plastic piece
just above the pump.
5. Loosen the wing nut in the center of the bracket. Note: if loosening the bracket does not
allow you to remove the tubing in Step 9 below, then you will need to remove the bracket
completely and should take careful note of the bracket's orientation.
6. Remove the left Allen screw on the semicircular occlusion plate on the sample pump.
7. Rotate the occlusion plate downward so it is out of the way.
8. Follow the sample pump tubing to the pieces of green restrictor tubing from the transfer
modules. Disconnect the pump tubing from both pieces of the green restrictor tubing by
pulling on the pump tubing while supporting the green restrictor tubing.
9. Disconnect the other end of the pump tubing from the waste outlet attached to the
Analyzer bulkhead.
10. Remove the pump tubing from the pump, and then safely dispose of the old tubing.
11. Use a paper towel to clean up any liquid that may have spilled inside the Analyzer.
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Warning
180 of 236 DLM 90488-01 Rev. A