Roche cobas b 221 system

Roche Diagnostics May 2009
B-130 Service Manual · Version 9.0
5 AutoQC module cobas b 221 system
AQC sample tube
7 Unscrew the screw (A) holding the angle unit and remove the angle piece with the
AQC sample tube.
e For details, see Figure B-90 on page B-121.
Use the reverse order for assembly.
Replacing the AQC sample tube short
1 Switch off the cobas b 221 system.
2 Pull the AutoQC module out to the left.
3 Remove the AQC sample tube (short) from the cross-slide.
e For details, see Figure B-98 on page B-127.
4 Disconnect the AQC sample tube (short) from the angle unit and remove it.
Use the reverse order for assembly.
Replacing the AQC sample tube long
1 Switch off the cobas b 221 system.
2 Pull the AutoQC module out to the left.
3 Remove the back panel of the instrument.
e For instructions, see Removing the rear panel on page B-20.
4 Unscrew the four screws holding the right side panel and remove the side panel.
5 Remove the AQC sample tube from the cross-slide.
e For details, see Figure B-98 on page B-127.
6 Remove the safety spring of the AQC sample tube (long) on the back of the T&D
module and disconnect the AQC sample tube and remove it.
e For details, see Figure B-99 on page B-129.
Do not remove the fastening screws completely, because they are secured against loss.
Activate the function program h [System] > [Component test] > [Aggregates] > [AQC motors]
> [AQC motors] > [Service Position] to bring the motors to the service position.
Activate the function program h [System] > [Component test] > [Aggregates] > [AQC motors]
> [AQC motors] > [Service Position] to bring the motors to the service position.
Do not remove the fastening screws completely, because they are secured against loss.