With Hirata-san, Ikeda-san and Washimi-san.

See pictures in album PR3 Remedying Work.

Summary:

• The IM and IRM seem to be still touching.
• The IM OSEM measure more than -2 mrad in yaw and the picomotor does not seem to be able to reduce it.
• There are cables touching where they should not. We released the tension in two of them but the improvement was small.
• There seem to be a cable in the IM touching a cable from the IRM. See this picture and this other one.

More information

• All the OSEMs flag seem to properly attached to the magnets. However, it must be clarified that assessment is difficult.
• About cables:
  • One cable from the BF is touching the BF Damper. See this picture.
  • One cable from the BF Damper is touching the security structure before reaching it's clamping point. See the picture in the previous item.
  • Two cables coming out from the IM are touching each other as they go out from the IM after their clamping points (likely this has not created problems so far). See this picture.
  • No Flying Saucer cable clamps were used. See this picture.
  • A cable clamped on top of the BF touches and applies pressure on one of the moving masses on top of the BF after the campling point. See this picture.
  • There are other cables which are almost touching.
  • There seem to be a cable in the IM touching a cable from the IRM. See this picture and this other one.
• For the cables from the first two items above we improvised a temporaty clamping point with a C-clamp. See this picture. The cables are still touching but some of the tension was released.
• We checked H1 OSEM flag and the position improved a little.
• I was not able to reduce IM-Y from about -2 mrad using the picomotor. It decreases by several tens of urad before stopping.