Tesco is to install Castell’s
driveaway-prevention system, Salvo,
at all of its distribution centres in
the UK.

The Salvo system links the
articulated trailer to the loading bay
door during the loading procedure.

The Salvo Susie lock is fitted to the
emergency air brake line coupling
when the trailer has been reversed
into position. A coded key is
released from the Salvo, locking the
unit onto the coupling. The key can
only be released once the Salvo has
been fitted to the brake coupling.

The key is then taken to the
corresponding loading bay and used
to switch the power on to the door.

Without a locked trailer, there can
be no power to open the door. Once
the loading bay door is opened, the
key cannot be removed to release the
trailer until the door is closed.

Only a single key exists for each
bay, ensuring that the door can only
be opened after the trailer has been
secured in place.

To guarantee the integrity of the
system, each bay is assigned a
different code.