This page describes how to remove the shutter wheel for both Echo and Bravo

Last updated: 06/10/2015 - SDM

Preparation

• Cool down sources or bring to idle?

  • need older student to finish

• Check that the shutters are in manual operation and closed

• Remove Pyrometer

  • Remove set screw

  • Pull entire unit off machine

  • Disconnect the pyrometer's power cord and set it somewhere safe to avoid damage to its lens

• Remove shutter rods (assuming shutters are taped)

• Disconnect pneumatic power cords

  • x2 bottom right

  • x1 on top

• Loosen set screws for connecting shutter rod to chamber (1/8" Allen)

  • 1 set screw for each side and bottom. 2 set screws for top

Pulling the wheel

• Remove shutter wheel

  • 2 people pull

  • 1 person to support and make sure nothing gets caught

• Turn off the 3 heated view ports (i.e. slowly ramp to zero)

  • The 2 large blue/white side view port controllers are ramped manually at a rate of 50 degC/15 min. Keep (slowly) ramping these for the rest of this procedure

  • The 1 small control box for the backside viewport ramps at an automatic rate -- go ahead and ramp it all the way to zero

• Disconnect source material water supplies and returns

  • As (Arsenic)

  • HT Bi (high-temperature bismuth)

  • DD

  • Groups IIIs

Safety and PPE