Buchi V-600 - Removing Non-Return Valve from Elbow Connector

7 | Cleaning and servicing BÜCHI Labortechnik AG
54/65 Operation Manual Vacuum Pump V-600
Fig.34: Orientation of non-return valves according to symbols
u Refit the elbow connectors together with connecting components, see Chapter
"Step 3: Reassembling and refitting the pump head", page46.
u Refit casing front.
7.2.7 Removing non-return valve from elbow connector
The diaphragm grips supplied have a notch in the front of the right-hand grip. This
can be used as an aid to removing the non-return valves from the elbow connectors.
1
2
4
3
Fig.35: Diaphragm grips with notch in right-hand grip for removing non-return valves
1 Diaphragm grips 3 Non-return valve
2 O-ring 4 Elbow connector
u Slide the connector (4) up to the top of the notch in the diaphragm grips.
u Press the connector upwards slightly so that the non-return valve twists in the
notch and then tilt it down.
5 The non-return valve and O-ring come away from the connector.