Roche cobas b 221 system User Manual

Roche Diagnostics May 2009
B-46 Service Manual · Version 9.0
4 Components cobas b 221 system
MSS measuring chamber (cobas b 221<5/6> systems only)
Replacing the MSS clip
1 Remove the cobas b 221 system top cover and open the MSS measuring chamber.
2 Unscrew the screws marked A and B of the MSS module and open the module.
e For details, see Figure B-28 on page B-45.
3 Remove the MSS clip.
Use the reverse order for assembly.
Replacing the fan protector (MSS module)
1 Disassemble the MSS module.
e For instructions, see Replacing the MSS measuring chamber on page B-44.
2 Loosen the four hooks at the ends of the fan protector.
e For details, see Figure B-26 on page B-41.
3 Release the head of the NTC cable from the fan protector with a screwdriver and
slide it out.
4 Remove the fan protector.
Use the reverse order for assembly.
Replacing the electrode locking lever (MSS module)
1 Remove the cobas b 221 system top cover and open the MSS measuring chamber.
2 Half open the electrode locking lever, hold it in place with both hands and pull it
up.
3 Disconnect the tube and remove the electrode locking lever.
Use the reverse order for assembly.
Electrostatically sensitive components!
Do not remove the fastening screws completely, because they are secured against loss.

Roche cobas b 221 system Specifications

General

Brand	Roche
Model	cobas b 221 system
Category	Medical Equipment
Language	English