8
If necessary, remove and replace the O-ring [104] in the adapter rod top.
This O-ring does not normally suffer from wear and its replacement is a
difficult procedure.
Note:
9
Fit the adapter rod top onto the adapter rod and (i) tighten the three lower screws
so that the rod top is centered on the adapter rod, and then (ii) tighten the two upper
stop screws [106] with an Allen key to fix the adapter tubing in the adapter rod.
CAUTION
After the adapter rod top has been fixed to the adapter tubing
do not loosen the adapter from the adapter rod. This may oth-
erwise cause leaks inside the adapter rod resulting from the
adapter tubing coming loose.
Figure 6.18: Tightening the stop screws.
10 a
For 50 and 70 columns:
Flush the adapter downflow with 20% ethanol to ensure that the adapter and
tubing are filled with liquid and free from air.
Place a new bed support in the snap ring. Place a new support net on the distrib-
utor. Fit the bed support and snap ring assembly onto the distributor. Ensure that
the edge of the support net is not trapped by the snap ring and that the bed
support is in contact with the distributor all around the circumference.
Check that the snap ring is correctly and evenly mounted around the
whole circumference of the distributor.
Note:
AxiChrom 50, 70 and 100 columns Operating instructions 28-9331-08 AG
129
6 Maintenance and service
6.2 Performing maintenance and service
