Dionex As, Operator'S Manual

Page: 155 / 356

5 • Service
Doc. 065051-03 1/08
143
the yellow sleeve is attached. Screw the clip back onto the needle arm
again.
5. Close the autosampler door and turn on the power. Press
Home
to
confirm that the tubing moves correctly.
6. Turn off the AS power and open the door.
7. Position the second yellow sleeve on the tubing in the position
measured in Section 5.4.1 , Step 7 . Loop the tubing at the second
yellow sleeve and attach it to the center bracket on the upper-right
side of the autosampler compartment (see
Figure 5-11 ). Use a
screwdriver to push in the bracket slightly and secure the tubing.
NOTE The front and back brackets on the upper-right
side of the compartment are not used.
8. Loop the remaining tubing and hang it on the rear clamp, leaving
about 45 cm (18 in) free.
9. If you are replacing an 8.5 mL sampling needle assembly
(P/N 061267), follow the steps below. If you are replacing a 1.2 mL
sampling needle assembly, go on to
Step 10 .
a. Connect the sampling needle line to the coupler that connects it to
the larger ID tubing (see Figure 5-11 ).
b. Carefully move the needle arm to the left front corner of the
compartment make sure it is all the way down. Verify that there is
enough slack in the sampling needle line to prevent the tubing
from being pulled.
Do not shorten the sampling needle assembly tubing. The extra length
is required to prevent sample from being pulled into the syringe
during operation.
The tubing must curve away from the needle arm assembly when the
arm is moved toward the left/front of the autosampler (as viewed from
the front). Adjust the tubing length to the needle when the needle is in
the left/front corner and all the way down.