Waters Autospec Premier Operator's Manual page 169

4. Hold the source handle and loosen the security lock thumbscrew on the
right-hand side of the source handle.
Source handle
Security lock thumbscrew
5. Retract the source handle until it reaches its stop.
6. Rotate the source handle so that the guide slot is no longer aligned with
the guide pin.
7. Wait for 2 minutes, to allow the source to cool.
8. Close the source isolation valve (on the left-hand side of the source).
The source isolation valve is closed when its handle is in the vertical
Tip:
position.
Source handle
Source isolation
valve
Source maintenance 7-11