CERN ATOMTEX BDKG-24, Руководство пользователя

Страница: 92 / 93

REFERENCE EDMS NO. REV. VALIDITY
TOF-TAR-PRD-0001 1867100 1.0 RELEASED
Page 92 of 93
Name of task
710. Remove
support plate
Exposed people
Local dose rate 0.1 µSv/hr
Workforce 2 (An extra pair of
hands may be needed to
support the plate)
Time needed 1h
Calculated dose
Responsible EN-EA
Involved EN-EA/ EN-HE
Comments:
Lifted up using the mobile crane outside the
building and fixed on the ceiling with 8 x Hilti
M20x170/30.
The plate can support 650kg.
A cherry picker will be needed.
A mobile crane will be needed.
This this be reused, it can be stored in the ISR8
Storage Area.
The inner diameter of this plate is 390 mm. The
diameter of the long vacuum chamber is 338 mm,
but it has a flange of 500 mm, so the plate needs
to be uninstalled.
Questions:
- What is the flange of the new vacuum
tube and lifting ring? If it is small enough,
then this plate
wouldn’t need to be
removed.
Support plate