![GE AxiChrom 100 Скачать руководство пользователя страница 49](http://html.mh-extra.com/html/ge/axichrom-100/axichrom-100_operating-instructions-manual_128028049.webp)
Removing the top plate and
adapter
The following procedure is used to remove the top plate and adapter [A] from the column
using the bayonet tools.
1
Ensure that the adapter is in the topmost position by pumping liquid upflow into the
process chamber (Moving the adapter in the column, on page 46).
2
Ensure that the hydraulic chamber outlet and/or the hydraulic chamber vent valve
are opened.
3
Ensure that the column is depressurized.
4
Insert a bayonet tool into each of the holes on the top plate [803] and top bayonet
[804].
5
Hold the tool still that is in the top bayonet and move the tool in the top plate coun-
terclockwise to unscrew the bayonet fitting.
CAUTION
Make sure that the adapter is stable in the mouth of the column
or hold the adapter in an upright position.
6
Dampen the adapter rod [802] using a cloth wetted with 20% (v/v) ethanol and
carefully slide the top plate approximately 15 cm up the adapter rod while keeping
the adapter in place.
CAUTION
Beware when handling the sharp edges of the bayonet threads.
NOTICE
Never force the adapter out from the column manually. Only
use hydraulic pressure as described in this Operating Instruction
to move the adapter in the column tube.
7
Carefully lift out the adapter and keep it over the mouth of the column tube. If there
is medium in the column, squirt a small volume of packing liquid onto the adapter
to rinse residual medium back into the column.
8
Carefully place the top plate and adapter on a flat surface.
AxiChrom 50, 70 and 100 columns Operating instructions 28-9331-08 AG
49
4 Getting started
4.6 Routine procedures