d&b Vi - Manual (Page 6)

1.6. Operational safety
The assembly should always be carried out by two persons.
During assembly pay attention to the possible risk of crushing.
Wear suitable protective clothing.
Observe all instructions given on the respective instruction labels of
the rigging components and loudspeaker cabinets.
When chain hoists are in operation ensure that there is nobody
directly underneath or in the vicinity of the load.
Do not under any circumstances climb on the array.
d&b Vi Rigging manual (1.2 EN) 6