Note: The DPS must remain running in some capacity to keep the beamline pressures at a level that allows for beam delivery. So do not attempt to stop the DPS without intending to have a significant rise in the vacuum level (up to mTorr and higher, depending on how long it stays off).
If there is no gas load in the IP, the DPS can be turned off.
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Close the foreline valve FV-US2. Check turbos 3108, 3130 and turbo 3151 spin down. Status should show this. If the turbos do not spin down due to the watcher, click stop. Report the fault in the watcher to Doug.
Manually stop turbos 3108 and 3130.
Close the foreline valve FV-US1. Check turbo 3171 spins down. Status should show this. If the turbo does not spin down due to the watcher, click stop. Report the fault in the watcher to Doug.
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Close the foreline valve FV-DS2. Check turbo 3291 spins down. Status should show this. If the turbo does not spin down due to the watcher, click stop. Report the fault in the watcher to Doug.