Crab Cavities Activities Week 8 20022017 Johan DallaCosta

Crab Cavities Activities Week 8 20/02/2017 Johan Dalla-Costa

Week 5 overview

Access problems at the turnstyle In the morning, access is not possible at 7: 30 (and generally before 8: 00): could this be fixed, please? Today, access problem at 9: 15, thanks D. Vaxelaire for fixing it

Activities on scaffold Scaffold must be out at latest on the 6 th March Safe date for dismounting may be 2 nd - 3 rd March, Thursday-Friday (Ok Gianluca? ) If anybody needs to use it for minor unforeseen work, please let us know

Conflict with cable tray, crab-zone 3 Conflicts: • Cryo Valve-Box 2 (Jos will mark the section to cut) • 2 Handling rails (see above for the 2 sections to cut) For EN/EL

Conflict with cable tray, TA 6 alcove For EN/EL Detach the cable trays from the wall by 70 mm

Temporary storage for BE/RF, TA 6 alcove One long (5 m) wooden box to be temporarily stored in the TA 6 alcove, next week (once Ram Power has cleared the place)

Neon lamps in the TA 6 alcove The neon lamps in TA 6 alcove and safety lamp in TA 6 access tunnel should be displaced

…Behind the bus-bars… We checked again today, DCIM is beeping with higher frequency close to the area Right hand view Left hand view

Cryogenic line in LSS 6 This week, cryogenic line activity in the LSS 6 should be finished In case of problems, still 1 -2 days next week Lifting of the line foreseen for Thursday-Friday Next week, cryogenic line activity in the TA 6 tunnel. Space should be made free on the left side of the TA 7

Helium pump area Helium Pumps installation (1 -2 days) Medium size transport item (see photo) Deadline 10 th March : Pumps should be in place Avoid the hour(s) of the dump transport Avoid the day of the scaffold removal …so check the date with SPS Coordination and JDC! For TE/CRG

Pipework under the false floor There is a conflict between the integration of 6” pipe under the false floor and one reinforcement pillar J. Metselaar is checking, he may contact SMB for displacement of the pillar Pipework activity by Ram Power under the false floor to start soon (Monday at latest) TE/CRG SMB/SE