The newly rebuilt 2500 l/s ion pump (at X-mid) is ready for installation tomorrow.  Gerardo and I had already tested it on the VEA floor last month.  I vented it with UHP N2 this afternoon and removed the fasteners from its 16.5" blank flange.  I climbed around on the recently erected scaffolding (thanks Chris S., Bubba G.) -seams sturdy and is tagged Ready for Use.  I also positioned pump carts and gas bottles etc... 

After energizing the MTP controller to charge the levitation batteries and noticed that the long-idle Turbo (stopped) was 2 Torr and the foreline was 780 Torr.  There is a known leak in the foreline.  As the manual isolation valve at the Turbo Header is closed, this should have remained at rough vacuum.  I removed all of the KF fittings that I could and blanked-off just past the leak detector connection and pumped out this new minimal volume with the scroll pump -> Though the scroll pump can bring this minimal-fitting foreline down to 3.5 x 10-2 Torr, the foreline pressure rises rapidly once the scroll pump is isolated.  I'll investigate more tomorrow.  For tonight, we won't run the Turbo.