d&b J-Series - Manual (Page 5)

1.3. Operational safety
During assembly pay attention to the possible risk of crushing hazard.
Wear suitable protective clothing.
Observe the weight of the J-Series loudspeaker cabinets and the J
Flying frame. Single person lift could cause injury – Lifting Hazard!
Always use assistance when moving or lifting.
Observe all instructions given on the rigging components (Flying frame,
Load adapter) and the loudspeaker cabinets.
When chain hoists are in operation ensure that there is nobody directly
underneath or in the proximity of the load.
Under no circumstances climb on the array.
J-Series Rigging manual (1.3 EN) Page 5 of 34