Procedure for compressed air system for the isolation workstations
Procedure for maintenance of the compressed air system for the isolation workstations in PSF 305
If anyone needs to shut off the air to one of the workstations, the following procedure should be used to ensure that the other tables are not disrupted.
1. Shut off the air flow at the main control valve. The tables do not consume air unless they are disturbed, so this should not directly decompress the system.
2. Locate the branch leading to the table that needs to be disconnected.
3. Disconnect the tubing only at the T connectors. These have automatic shutoff valves that maintain pressure in the rest of the line. If you disconnect a tube elsewhere, the entire system will decompress.
4. The T connectors use push-to-connect fittings. In order to disconnect a tube, the blue ring needs to be pushed into the fitting and held in position while the tube is removed.
5. To replace a tube, simply push into the fitting. Make sure the end of the tube is cut square (not angled) and that it is pushed all the way in.
6. When all the tubes are connected, open the main valve. Listen to make sure there are no leaks in the system.
7. If the newly-connected table does not float within a few minutes, it is possible that the connection to the T connecter was not made properly and the valve may still be closed. Double-check to make sure that the tube is fully inserted into the T connector.