Roche cobas b 221 system User Manual

Roche Diagnostics May 2009
Service Manual · Version 9.0 B-45
cobas b 221 system 4 Components
MSS measuring chamber (cobas b 221<5/6> systems only)
7 Disconnect the two MSS connecting cables on the mainboard.
8 Unscrew the five screws (internal hex) holding the MSS module and remove the
module (see below, A and C).
9 Slide the new MSS module into position, starting from the left to the right.
10 Align the module and gently push it into position. Keep pushing the module on
the right top.
11 Tighten the five MSS module screws (internal hex) beginning at the top right (see
above, A) proceeding counter-clockwise and at last tighten the screws with
washers (see above, C).
Use step 7 backwards for remaining assembly.
Replacing the MSS MC cover
1 Remove the cobas b 221 system top cover and open the MSS measuring chamber.
2 Pull the MC cover upward.
Use the reverse order for assembly.
A Three module screws without washers
B Three screws (internal hex)
C Two module screws with washers
Figure B-28 MSS module screws
A
A
B
A
C
C
Treat module sealings carefully!
When sliding the new MSS module into position, treat the module sealings carefully. Slide the
module into position starting from the left to the right. Align the module properly and gently push it
into position.
Make sure that there is no contamination between heating plate and sample distributor cartridge.

Roche cobas b 221 system Specifications

General

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