next up previous contents
Next: Condensing Up: Begin Condensing Previous: System Status   Contents


Disconnecting the Pump Cart

At this point, it is good practice to close the OVC valve, and turn off the pump cart. Why? Several reasons:

If you have not already, [sec:prepare.leak.disconnect]disconnect the leak checker, see §sec:prepare.leak.disconnect. To disconnect the pump cart:

  1. Close the OVC valve.
  2. Turn off the pump cart turbo by pressing the power button.
  3. Turn off the pump cart roughing pump, by flipping the power switch on the roughing pump. enumerate

    IMPORTANT NOTE: The Turbo pump will spin down to 90% before it vents, (it will sound like an engine spinning down). DO NOT: Leave the room with the roughing pump running and the turbo spinning down. If the roughing pump is running while the pumpcart is venting, the roughing pump will continue to pump on atmosphere for 1 hour before the vent closes again.

    enumerate

  4. Disconnect the vacuum hoses.


next up previous contents
Next: Condensing Up: Begin Condensing Previous: System Status   Contents
Jonathan Ouellet 2014-08-26