Electro-Voice XLC manual Electro-Voice

Page 13

Initially, the rear rigging will be slack as the array is lifted. As more enclosures are suspended, the rear swing arms in the top enclosures will go into tension. If it is desired to lock the enclosures at their vertical splay angles when in compression as well as in tension, the lifting should be paused so that the second quick-release pin can be installed in the hole immediately at the end of the swing arm. For most arrays, the second pin is not necessary. Second pins are usually only necessary when a pull back is used, or when arrays with large arcs are assembled. (See Section

1.2of this manual for a detailed discussion of when to use a second pin.) If the user does not want to use a second pin, this step can be eliminated. Secure any unused pins into the swing-arm transport hole in the frame. To disassemble the array, reverse the steps outlined in this section.

THE ENCLOSURES MUST BE BROUGHT OUT OF COMPRESSION AND THE SECOND LOCKING PIN REMOVED BEFORE THE ARRAY IS LOWERED TO THE GROUND FOR DISASSEMBLY.

ELECTRO-VOICE®￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿

12

Image 13
Contents ELECTRO-VOICE ELECTRO-VOICE Table of ContentsRigging-Safety Warning Introduction Weight 116 lb 52.6 kgXLC-118 Loudspeaker System Overview of the XLC Flying System XLC Rigging SystemXLC Enclosure Rigging Hardware Details Typical XLC Flying System XLC Rigging Hardware XLC-127 and XLC-127+ Rigging Dimensions Correct Incorrect XLC Rigging and Flying Techniques Rigging an Array Using the XLC Front DolliesArray Considerations ELECTRO-VOICE ELECTRO-VOICE Flying XLC Systems with Front Dollies Step Dolly Clip Working-Load Limit and Safety Factor Definitions Simplified Structural-Rating Guidelines Structural Rating OverviewSimplified XLC Rigging-Rating Guidelines Complex Structural-Rating Analysis ELECTRO-VOICE MAX-∅ MAX+∅ XLC-127 and XLC-127+ Rear-Rigging-Point Structural Ratings XLC-118 Rear-Rigging-Point Structural Ratings Total Column Weight Working-Load Limit 2200 lb 998 kg Wind Loading Electro-Voice Structural-Analysis Procedures Electro-Voice XLC Loudspeaker Systems Rigging Inspection and PrecautionsELECTRO-VOICE Rigging References ReferencesMechanical Engineering References ELECTRO-VOICE ELECTRO-VOICE Telex Communications, Inc /2002 Part Number 38110-145 Rev a