Labconco Type C1 Biosafety Cabinet Models 30468 - Manual (Page 132)

Product Service 1-800-522-7658 132
Tube fitting
Tube fitting nut
10. Make sure the service fitting in the Purifier is in the off position before pressurizing
the service line. Once pressurized, check the valve body, the coupling, and the tube
fitting for leaks. Tighten any leaking joints.
11. Reattach the side panel.