QSC ALK-MD2 User Manual
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1675 MacArthur Blvd., Costa Mesa, CA, 92626 USAMain Number (714) 754-6175 or toll free (USA only) (800) 854-4079Customer Service(714) 957-7150 or toll free (USA only) (800) 772-2834ALK-MD2 Array Link Kit for Two MD-series Loudspeaker EnclosuresThis kit is to be used only for arraying of two QSC MD series loudspeaker enclosures, active or passive. Do not use this kit or any component ofthis kit for any other purpose.Contents:•Array link, AL-MDR2 2 each•Array link, AL-MDF 2 each•Bolt, hex, cap, 3/8”-16TPI x 1.5", grade 5 8 each•Washer, flat, 7/16" x 1" , .07” - .09” thick 14 each (3 are spares)•Washer, lock, internal tooth, 3/8" 14 each (3 are spares)•Eyebolt, 3/8”-16TPI x 1.5” 3 eachRules for Suspension• Correct use of all suspension hardware and components is imperative in sound system rigging and deployment.• Always calculate suspended loads before lifting to ensure suspension components and hardware are used within their respective load lim-its.• Research local codes and regulations to fully understand the requirements for suspended loads in the venue in which the equipment is to besuspended.• Be absolutely certain of the integrity of any structural member intended to support suspended loads. Hidden structural members can havehidden structural weakness.• Consult a professional mechanical or structural engineer licensed in the jurisdiction of the sound system installation to review, verify, andapprove all attachments to the building or structure.• Never assume anything- owner or third-party supplied suspension attachment points may not be adequate for the loads to be suspended.• Employ the services of a professional rigger for hoisting, positioning, and attaching the equipment to the supporting structure.• Always inspect all components (enclosures, suspension brackets, pins, frames, bolts, nuts, slings, shackles, etc.) for cracks, wear, deforma-tion, corrosion, missing, loose, or damaged parts that could reduce the strength of the assembly before lifting. Discard any worn, defective,or suspect parts and replace them with new appropriately load-rated parts.Shock LoadingWhen a load is either moved or stopped, its static weight is magnified. Sudden movements can magnify the static weight several times. Thismagnification of static weight is termed "shock loading". Shock loading poses a danger to equipment and workers. The effects of shock loadingcan be instantaneous, or they may remain undetected unless the equipment is visually damaged. Avoiding shock loading requires careful plan-ning and knowledge of equipment, rigging, and lifting practices.• Shock loading of equipment and structures is usually confined to lifting and installation, but natural forces (winds, earthquakes) can imposeshock loads several times the static load. This is why structures and suspension equipment must be capable of supporting several times theweight of the equipment suspended.Working Load Limits*TD-000242-00*TD-000242-00 revAComponent Weight 7:1 Design Factor 10:1 Design Factor 12:1 Design FactorMD-F, MD-L, MD-FP, and MD-LP loudspeakers,top and side panel suspension points90 lb(40.8 kg)457 lb(207.3 kg)320 lb(145.2 kg)267 lb(121.1 kg)MD-F, MD-L, MD-FP, and MD-LP loudspeakers,rear panel suspension pointsn/a 314 lb(142.4 kg)220 lb(99.8 kg)183 lb(83.0 kg)Eyebolt n/a 857 lb(388.7 kg)600 lb(272.2 kg)500 lb(226.8 kg) |
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