Logbook MirrorInstall

Enter comments in reverse time order

Date	Who did it?	Action	Comments	Documents
2018-04-28	Satoshi, Tomohiro, Casana	Mirror Installation	We finished to install 12 mirrors on the structure (in total 44).
2018-04-27	Martin, Satoshi, Tomohiro, Casana	Mirror Installation	We finished to install 16 mirrors on the structure (in total 32).
2018-04-26	Martin, Satoshi, Tomohiro, Casana	Mirror Installation	We started the mirror installation at Roque. We finished to install 15 mirrors on the structure (in total 16).

Trouble Shooting

2018/04/28

- Casana people inside the dish dropped off one O-ring while removing actuator caps.

- While inserting a safety bolt, we damaged a little the edge of the hole. We kept this mirror today and will attach silicon paint the next working day.

- We found one fixed point which has one hole just above a sticking part of the hose band. We replaced with a new fixed point as we could not insert a bolt to that hole.

2018/04/27

- Casana people inside the dish dropped off a hexagonal key and could not find it on the ground.

- We are not sure if people inside the dish unscrew milling parts for actuators, make actuators straight and fix the milling parts again. Martin went inside the dish and checked that they are doing these works for all the mirrors.

2018/04/26

- When Casana people tried to install one mirror, they realized a big nut did not fit the fixed point and they could not fix the fixed point. It may have happened in the dish when trying to fix the nut. We solved this problem quickly by replacing the fixed point with a new one. Still, we check if a nut fits well a fixed point of a mirror to be installed before attaching it to the cherry picker.

- Sometimes it is very hard to insert safety bolts because of glue and a tape inside the hole. We solved by using a small hammer and a small screwdriver which Holger suggested to us to use to remove glue or tape.