JBL Professional DPC-2 - Manual (Page 13)

13 JBL Professional
General Hardware Information
Any hardware used in an overhead suspension application must be load rated for the intended use.
Generally, this type of hardware is available from rigging supply houses; industrial supply catalogs and
specialized rigging distributors. Local hardware stores do not usually stock these products.
Attachment to Structures
A licensed Professional Engineer must approve placement and method of attachment to structures prior to
installation of any overhead object. The following performance standards should be provided to the Professional
Engineer for design purposes: Uniform Building Code as applicable, Municipal Building Code as applicable,
Seismic Code as applicable. Installation of hardware and method of attachment must be carried out in the
manner specified by the Professional Engineer. Improper installation may result in damage, injury or death.
Rigging Hardware Inspection & Maintenance
Suspension systems are comprised of mechanical devices and, as such, they require regular inspection and
routine maintenance to insure proper function ability. JBL VP Series loudspeakers must be inspected for
fatigue at least annually. The inspection shall include a visual survey of all corners and load bearing surfaces
for signs of cracking, water damage, de-lamination, or any other condition that may decrease the strength
of the loudspeaker enclosure. Accessory rigging hardware provided with or for JBL VP Series loudspeakers
must be inspected for fatigue at least annually. The inspection shall include a visual material survey for signs
of corrosion, bending or any other condition that may decrease strength of the fastener. For other fittings
used, refer to the manufacturer’s inspection and maintenance guidelines for process.
JBL is not responsible for the application of its products for any purpose or the misuse of this information
for any purpose. Furthermore, JBL is not responsible for the abuse of its products caused by avoiding
compliance with inspection and maintenance procedures or any other abuse. Prior to suspending the
system, an expert, trained and experienced in flying loudspeaker systems should inspect all rigging parts and
components.