Roche Diagnostics May 2009
Service Manual · Version 9.0 B-73
cobas b 221 system 4 Components
Vacuum system
3
For S1 Rinse Solution only:
Close AutoQC drawer and unscrew the two screws holding the transponder
control cover plate.
4
For S3 Fluid Pack transponder control only:
Pull the waste exhaust tube from the guide; unscrew the two screws holding the
plug shield of the FMS control board and remove the plug shield; unscrew the two
screws holding the FMS control board and slide the board to the side.
e
For details of removing the plug shield, see Figure B-19 on page B-33.
5
Disconnect the cable from the transponder control.
6
Unscrew the screw holding the transponder control and remove the transponder
control.
Use the reverse order for assembly.
Vacuum system
Replacing the vacuum pump completely
1
Switch off the cobas b 221 system and open the bottle compartment cover.
2
Remove the top cover and T&D cover of the cobas b 221 system.
3
Rotate the T&D lock on the T&D module 90 degrees to the right.
e
For details, see Figure B-4 on page B-22.
4
Carefully pull the sample inlet path out to the right and remove it.
5
Unscrew the three screws holding the central measuring unit.
e
For details, see Figure B-2 on page B-20.
6
Raise the central measuring unit forward until it clicks audibly into place.
Various components of the cobas b 221 system, such as T&D module, tubes, waste bottle, waste
separator etc., contain liquid biological residues after use that may cause infection.
Handle these components with care and avoid skin contact. To avoid direct contact with biological
materials, always wear appropriate protective equipment such as lab clothing, protective gloves,
safety glasses and, if necessary, a face mask. Additionally a face shield must be worn if there is a
potential of a splashback. Appropriate disinfection and sterilization procedures must be followed.
Always wear gloves when working with the instrument! The tubes may drip a little after being
disconnected. Remove excess fluids with a clean, absorbent cloth.
Do not remove the fastening screws completely, because they are secured against loss.
The sample inlet path must be removed at this time, otherwise it will be destroyed by folding the
central measuring unit out.
To Next Page
Loading...
Need help?
General
