(Travis S., Jordan V., Gerardo M.)
First, the good news, we managed to helium leak check all of the conflats that were added or "touched" related to HAM1 volume, and no leak was detected above the background of 1.9x10-10 torr*l/sec of He. All electrical feedthroughs, all five way crosses, new gauge tree, and a new turbo flange were leak tested.
Now for the puzzling part, after all items were leak checked, we valved in the ion pump to HAM1, as soon as that was done, since we still had the leak detector backing the turbo pump the background went up to 2.5x10-09 torr*l/sec of He, a little sick ion pump??
HAM1 annulus system is lagging behind, its ion pump controller is railed at 10 mA. HAM1 and HAM2 share the same annulus volume, both systems are currently being pumped down with two different aux carts, both of the ion pump controllers were turned on today, HAM2 system is currently sitting at 7 mA, but HAM1 still railed as stated above. If the performance does not improve we'll need to break out the big wrenches to revisit the doors.
The squeezer path from HAM7 to HAM8 is open now, all closed valves were opened today, RV1, FCV1, FCV2, FCV3, FCV4, FCV5.
Main Turbo pumps were shut down today, output manifold turbo, Y-Beam manifold turbo, and the X-Beam manifold turbo. HAM6 turbo pump was also turned off, but the cart still powered on.
Rogers Machinery was in the mechanical room today, see work in progress on the photo below, new compressor and new dryer skid, rough location, rough position.