Nexo GEO S8 - Manual (Page 20)

P.20 GEO TANGENT ARRAY RIGGING SYSTEM
• Never leave the system unattended during the installation process.
• Do not place any object, no matter how small or light, on top of the system during the
installation procedure. The object may fall when the system is flown and is likely to cause
injury.
• Motor or hoist secondary safety steels must be installed once the system has been flown to
the operating height. Secondary steels requirements depend on the local safety standards
applicable to the territory.
• Ensure that the system is secure and prevented from pivoting around the motor hoist.
• Avoid any form of excessive dynamic loading to the assembly (structural computations on
GeoS Rigging System are based on a 1/1.2 factor for hoist or motor acceleration).
• NEVER attach any item to the GEOS / CD12 system other than NEXO GEOS / CD12
accessories.
• When flying outdoor systems ensure that the system is not exposed to excessive wind or
snow loads and is protected from rainfall.
• The GEOS / CD12 Rigging System requires minimum yearly inspection by a competent
person. Please follow local regulations for inspection procedures.
• When de-rigging the system ensure that the same care is given to the load out procedure
as for installation. Pack GEOS / CD12 Rigging System components carefully to prevent
damage in transit.
Ground Stacking Safety
Statistically, many more injuries occur due to unstable ground stacked PA systems than those associated with
flown systems. There are several reasons for this fact, however the message is clear:
• Always survey the supporting structure upon which a ground stack is to be built. Always
look beneath PA wings to inspect the deck support and if necessary ask for the stage
scrims and dressings be removed to allow access.
• If the stage surface slopes, as it does in some theatres, ensure that the system is prevented
from sliding forwards due to vibration. This may require the fitting of timber battens to the
stage floor.
• For outdoor systems ensure that that the system is protected from wind forces which might
cause the ground stack to become unstable. Wind forces can be huge, especially upon
large systems, and should never be underestimated. Observe meteorological forecasts,
calculate the “worst case” effect upon the system prior to erection and ensure that the
system is secured appropriately.
• Take care when stacking cabinets. Always employ safe lifting procedures and never attempt
to build stacks without sufficient personnel and equipment.
• Never allow anyone, whether operators, artists or members of the public to climb onto a
ground stacked PA system. Anyone who needs to climb over 2m high should be fitted with
suitable safely equipment including a clip-on harness. Please refer to local Health and
Safety legislation in your territory. Your dealer can help with advice on access to this
information.
• Apply the same attention to all safety matters when de-stacking systems.
• Be aware that safety procedures are as important in the truck and in the warehouse as they
are at the venue.