DAS AUDIO LARA, Rigging Manual

Page: 3 / 39

3
LARA manual / LARA - SUB
SAFETY PRECAUTIONS
This manual offers all the necessary information for flying
DAS Audio systems. This document contains safety precautions
and a description of the elements to be used.
To carry out any operations related to flying a DAS Audio
system, it is recommended to read the present document first
and comply with the warnings and advice given. The goal is
to allow the user to become familiar with the mechanical
elements required to fly the acoustic system, as well as the
safety measures to be taken during and after assembly.
Only experienced installers with adequate knowledge of
the equipment and local safety regulations should fly speaker
boxes. It is the user´s responsibility to ensure that the systems
to be flown (including flying accessories) comply with state and
local regulations.
The working load limits in this manual are the results
of tests carried out by independent laboratories. It is the
user´s responsibility to follow and comply with safety factors,
resistance values, periodical supervisions and warnings given
in this manual. Product improvement through research and
development is on going at DAS Audio, specifications are
subject to change without notice.
It is common practice to apply 5:1 safety factors for
enclosures and static elements. For slings and elements
exposed to material fatigue due to friction and load variation
the following ratios must be met; 5:1 for steel cable slings; 4:1 for
steel chain slings and 7:1 for polyester slings. Thus, an element
with a breaking load limit of 1000 kg may be statically loaded
with 200 kg (5:1 safety factor) and dynamically loaded with 142
kg (7:1 safety factor).
When a system is flown, the working load must be
lower than the resistance of each individual flying point in the
enclosure, as well as each box.
Rigging hardware should be regularly inspected and
defective units replaced discarded. It is highly recommended
that you implement an equipment inspection and maintenance
program, including reports to be filled out by the inspectors.
Local regulations may exist that, in case of accident, may require
you to submit evidence of inspection reports and corrective
actions carried out after defects were found.
Absolutely no risks should be taken with regards to public
safety.
When flying enclosures from the ceiling or other
structures, extreme care should be taken to assure the load
bearing capabilities of the structures so that the installation is
absolutely safe. Do not fly enclosures from unsafe structures.
Consult a certified professional if needed. Use gloves and all
necessary protective equipment to avoid personal injuries.
All flying accessories that are not supplied by DAS Audio
are the user´s responsibility. Use at your own risk.