On 12th Jan
[Ohishi, Ambai(FCL), Nara(FCL), Doi]

We have installed IMMT2 and IMMT1 suspensions into IFI and IMM chambers.
Mirror installation was postponed. Cables are not connected.

IMMT2 was installed from the top flange with a crane.
Firstly, we opened the large side flange with 2 KOACH filters turned on.
Then we put dry air from the port attached the day before.
Opened the top flange about 10cm and covered the top of the chamber with aluminum foil.
Removed the top lid and then hang IMMT2 suspension, that is covered with a clean bag, into the chamber.

IMMT1 was installed from the side flange by hand.

Inside the chambers, there remained iKAGRA IMMTs, so we need to remove them soon.