[Takahashi, Washimi, Ikeda, Aso]

We continued the adjustment of the suspension opening the top belljar.

1. We checked the TM height with a laser leveler. The wire braker on the RM was consistent with the flange center level.
2. We adjusted the height of the secondary coil for the SF LVDT so that the LVDT signal could be 0 count (-1938 um). We calibrated the SF LVDT (plot). The coefficient was 0.23um/count.
3. We found the signal of the BF LVDT was 0. We checked the resistances of the coils at the feedthrough. They were normal. After reconnection of the Dsub connector to the feedthrough, the LVDT signal was recovered. The signal value was 1800 um. The cable connection became stable.
4. When we pulled down the BF keystone, it touched a mechanical lower limit soon. The limit was at 700 um at the last time. It's strange.
5. We pulled up the BF keystone with the FR from 1803 to 2715 um by -360000 steps. The RM height was changed by about +1mm by eye with the laser leveler. Finaly the BF keystone was set to 2549 um, then the RM height was consistent with the flange center level.
6. We adjusted the OSEM positions and insertions taking the alignmemnt of the TM to the Oplev.
7. We put the top belljar on the chamber.