User manual JBL VT4886-DF88

[. . . ] Caution should be taken to avoid prolonged exposure to SPL in excess of 90 dB. PRECAUTIONS The VerTec series speakers covered by this manual are not intended for use in high moisture environments. Moisture can damage the speaker cone and surround and cause corrosion of electrical contacts and metal parts. Avoid exposing the speakers to direct moisture. Keep speakers out of extended or intense direct sunlight. [. . . ] The installation of the 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. INSPECTION & MAINTENANCE Suspension systems are comprised of mechanical devices and, as such, they require regular inspection and routine maintenance to ensure proper function ability. Before suspending or pole mounting any speaker system always inspect all components (enclosure, suspension frames or brackets, pins, eyebolts, etc. ) for cracks, deformations, corrosion, missing, loose or damaged parts that could reduce strength and safety of the array. Do not suspend or pole mount the speaker until the proper corrective action has been taken. Installed systems should be inspected 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 suspension hardware provided with or for JBL VT4886 and VT4883 loudspeakers must be inspected for fatigue at least annually or as required by local ordinance. The inspection shall include a Page 4 VT4886-DF88 VT4886-DF89 Downfill Adapter User Guide visual survey of the material for signs of corrosion, bending or any other condition that may decrease the strength of the fastener. Additionally, any eyebolts shall be checked for possible spin-out of the enclosure. For all other hardware and fittings, refer to the hardware 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 suspending speaker systems should inspect all parts and components. RESOURCES Adaptive Technologies Group 562. 424. 1100 1635 E. Burnett Street Signal Hill, CA 90755 www. adapttechgroup. com McMaster Carr Various Locations in the USA For a location near you, visit them at www. mcmaster. com JBL Professional - Tech Note Vol. 14 "Basic Principles for Suspending Loudspeakers" www. jblpro. com/catalog/support/getfile. aspx?docid=296&doctype=3 SAFE SUSPENSION JBL suspendable version loudspeakers are supplied with built-in internal brackets. The systems are designed to facilitate the suspension of the loudspeaker by a qualified person familiar with rigging hardware and industry practices. Improper installation may result in damage, injury or death. If you are unfamiliar with Safe Rigging Practices you will need to consult with a qualified person familiar with rigging hardware and industry practices. WORKING LOAD LIMIT (WLL) VT4886-DF88 WLL = 280 lbs (127 kg) VT4886-DF89 WLL = 280 lbs (127 kg) WARNING Suspension of JBL loudspeakers must employ a minimum of two (2) attachment points. When "bridling" a JBL loudspeaker system, two (2) legs of equal length must be used. The rear attachment points are pullback points and are intended only for use in adjusting the down-angle of the speaker enclosure. [. . . ] Reduction of Hazardous Substances documentation for our RoHS compliant products. http://www. jblpro. com/catalog/support/getfile. aspx?docid=1529&doctype=3 The WEEE directive (2002/96/EC) places an obligation on all EU-based manufacturers and importers to take-back electronic products at the end of their useful life. JBL, through it's agent, accepts its responsibility to finance the cost of treatment and recovery of redundant WEEE in accordance with the specific WEEE recycling requirements. All of our products are marked with the WEEE symbol; this indicates that this product must NOT be disposed of with other waste. [. . . ]