Thermo Scientific Dionex AutoTrace 280, Руководство оператора

Страница: 94 / 166

Dionex AutoTrace 280 Operator’s Manual
86
Doc. 065330-05 03/2020
7. Remove the O-ring from the top part of the disk holder (see Figure 5-1 ):
a. Turn the top part of the disk holder upside down.
b. Rest one thumb and finger on the O-ring at opposite sides of the disk
holder. Press firmly on the O-ring.
c. While applying steady pressure to the O-ring, begin sliding your thumb
and finger around the O-ring. The pressure will cause the O-ring to pop
out of the groove slightly; when this happens, slide the tip of your index
finger under the O-ring and remove it from the groove.
Install the New O-Ring
1. Rinse and clean the groove in the top of the disk holder. Be careful not to
scratch the groove; scratches will prevent a proper seal.
2. Install the new O-ring. Be careful not to rip or tear the O-ring.
3. Reinstall the large washer and locking collar.
4. Place the disk holder on a slightly elevated surface (for example, a bottle
stopper or bottle cap) to keep the washer and collar in place, and then reinstall
the snap ring.
5. Reattach the disk holder assembly to the clamp mechanism.
6. Reinstall the tubing and tubing clamp. Move the 3-mm (1/8-in) OD sleeving
tubing down over any exposed tubing.
7. Repeat the steps above to replace the remaining disk holder O-rings.
Complete the Procedure
After replacing all of the disk holder O-rings, run the Benchmark Test diagnostic
method (#30) (see
Section 5.17 ). While the method is running, check for leaks or
other problems.