View at the inside of the VELO-vessel: the RF-box with slots for the 2 Pile-Up and 21 VELO-modules. Also visible are the 2 ion getter pumps below the vessel and the belt that drives the x-movement of the module base.

Inside of the C-side of the VELO-vessel: the RF-box with slots for the 2 Pile-Up and 21 VELO-modules Interieur du cote C du vaisseau Velo.Transport in the pit towards the balcony.Lifting of the detector half out of the transport trolley.The detector half is being rotated over 90 degrees.The detector half ready to be lowered and mounted on the installation rail.Simultaneous fixation of the 3 bolts that connect the module base to the translation system.A-side of the VELO after installation of the detector half and before installation of the repeater crates.