with Yano-san,

We set target at PR3 HR side as following procedure.

1. Set the laser leveler (Tajima ZEROG-KYJ) between the duct and PR3. (attached file 1)

2. Aligned the vertical line with the recoil mass line of PR2 and PR3 by translating or rotating the laser leveler. (attached file 2)

3. Set the target at PR3 HR side, and aligned target plate to the vertical laser. holizontal too. (attached file 3)

4. Roughly confirmed distance from edge of PR3 duct. CAD is 299.1mm, measured value was 297.5mm. (attached file 4)