Roche Diagnostics May 2009
B-36 Service Manual · Version 9.0
4 Components cobas b 221 system
Sample distributor (SD)
5
Open the locking lever (Plexiglas cover) of the MSS input pump and slide the
linear clip (white plastic piece) upwards.
6
Slide the bypass holder down and raise the bypass nipple.
e
For details, see Figure B-8 Replacing the bypass nipple on page B-25.
7
Unscrew the six screws holding the sample distributor cartridge and pull the
sample distributor cartridge up and to the right.
e
For details, see Figure B-22 on page B-36.
Use the reverse order for assembly.
A Linear clamp
B Tubes to measuring chamber cartridge
C Six screws holding the sample distributor
cartridge
D Bypass nipple
E Sample distributor liquid connection
Figure B-22 Sample distributor cartridge
Do not open the cartridge!
Do not open the cartridge during replacement.
Do not remove the fastening screws completely, because they are secured against loss.
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