[Torrey, Jeff, Daniel]

We installed a second 6" CF Gate Valve onto the Laser Filter Cavity (LFC) facing the output cube. This is for the ion pump. Tightening the bolts was challenging with all of the other objects in the way. I don't think I maintained a consistent torque at the end of the tightening procedure as I couldn't fit the torque wrench in its torque limiting configuration. The bottom was showing more of the copper gasket than the top, so I started applying a bit more force. I believe I've tightened the bolts sufficiently and consistently enough to avoid leaks.

Since this is for the ion pump, I figured I should look more closely into what ion pumps, controllers, and cables we have from the Holometer. I found what I believe to be some controllers but I can't identify them. Based on a printed ion pump trouble shooting guide, the pumps appear to be from Duniway. The pumps we have appear to be the 30 L/s pumps (a bit tricky to identify from size but clearer from their weight and flange size), maybe the DSD-030-5125-M. I think the guide is from 2010. I also found a single cable that should go from the controller to the ion pump.