L-Acoustics ARCS II Rigging Manual
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L-Acoustics ARCS II Rigging Manual

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ARCS II
rigging manual (EN)

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Summary of Contents for L-Acoustics ARCS II

  • Page 1 ARCS II rigging manual (EN)
  • Page 2 VERSION 1.1 Document reference: ARCSII_RM_EN_1.1 Distribution date: March 21, 2017 © 2017 L-ACOUSTICS ® . All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means without the express written consent of the publisher.
  • Page 3 Do not stack the loudspeaker array on unstable ground or surface. If the array is stacked on a structure, platform, or stage, always check that the latter can support the total weight of the array. As a general rule, L-ACOUSTICS ®...

  • Page 4: Table Of Contents

    This document contains essential information on rigging the system properly and safely. Carefully read this document in order to become familiar with these procedures. As part of a continuous evolution of techniques and standards, L-ACOUSTICS reserves the right to ®...

  • Page 5: Rigging System

    An L-ACOUSTICS ® loudspeaker system is the set of components available to form any loudspeaker system based on one of the full-range loudspeaker enclosure afforded by L-ACOUSTICS ® . It includes enclosures, rigging accessories, loudspeaker cables, amplified controllers, and software applications.
  • Page 6 ARCS II SYSTEM ® rigging manual VERSION 1.1 ® ARCS SB28 ARCOUPL BUMP3 LIFTBAR ARCBUMP ARCSPLA SOUNDVISION Main components involved in the rigging process of ARCS ® II SYSTEM w w w . l - a c o u s t i c s . c o m ARCSII_RM_EN_1-1...

  • Page 7: Mechanical Safety

    ® ® Mechanical safety of the shackles The D-shackles Ø12mm, Ø18mm and Ø22mm provided by L-ACOUSTICS ® have a working load limit (WLL) of respectively 630 kg, 1250 kg, and 2000 kg with a 6:1 safety factor. These ratings are in accordance with...

  • Page 8: System Set-Up

    ARCS II SYSTEM ® rigging manual VERSION 1.1 SYSTEM SET-UP Dismantling an array Apply the associated set-up procedure in reversed order. ARCS ® II enclosure orientation within the array Due to the asymmetrical coverage of the ARCS ® II enclosures, their orientation within an array will determine the extended coverage direction Horizontal array From behind Vertical array From behind...

  • Page 9: Rigging Procedures

    Specific to horizontal arrays Place the enclosures so that the line source will provide the intended coverage pattern. Upward coverage Downward coverage b. Detach the ARCSPLA dolly boards, by removing the O-ring safety pins from the ARCS II hitching pins. ® Injury hazard Pay close attention when removing the safety pins so as not to pinch your fingers.
  • Page 10 ARCS II SYSTEM ® rigging manual VERSION 1.1  PROCEDURE A : Assembling an enclosure array   Enclosures placed at the rigging position A safety pin being removed to detach the dolly-board   Adjacent rigging rails aligned The front shackle being removed from an ARCOUPL bar ...

  • Page 11: Installing The Bump3 Rigging Bar(S)

    Installing the BUMP3 rigging bar(s) Required number and position of BUMP3 1 BUMP3 for 2 or 4 ARCS ® 2 BUMP3 for 1, 3, 5 or 6 ARCS ® Preparing the BUMP3/ARCOUPL assemblies For this procedure, the BUMP3/ARCOUPL assemblies must have been prepared. Refer to PROCEDURE E. ...

  • Page 12: Installing The Liftbar Rigging Bar

    ARCS II SYSTEM ® rigging manual VERSION 1.1 Installing the LIFTBAR rigging bar  Attach the LIFTBAR to both BUMP3. a. Pass the U-shape of one of the Ø18mm shackles through the shackle attached to one of the BUMP3. b. Secure the new shackle to the LIFTBAR, by locking its pin through the LIFTBAR hole previously identified. c.

  • Page 13: Installing The Arcbump Flying Frame

    Installing the ARCBUMP flying frame Identify the enclosure to be attached to the ARCBUMP When attaching the ARCBUMP, the assembly is horizontal. The ARCBUMP is attached to one of the enclosure at the end of the assembly, depending both on intended coverage and the enclosures’ orientation. From behind Intended coverage Connection panel...
  • Page 14 ARCS II SYSTEM ® rigging manual VERSION 1.1  PROCEDURE D: Installing the ARCBUMP   A shackle is being removed from an ARCOUPL bar The ARCOUPL bars are being slid in the rigging rails  Ø A shackle ( 12mm) being reinstalled along with a safety sling The array secured with safety steels front and back) ...

  • Page 15: Preparing The Bump3/Arcoupl Assembly

    Preparing the BUMP3/ARCOUPL assembly It is highly recommended to pre-assemble the BUMP3 structure with one of the spare ARCOUPL bars available with the ARCS II system, and to store this BUMP3/ARCOUPL assembly as it is. It will avoid ® unnecessary repetitive steps in the rigging process of an ARCS II assembly.
  • Page 16 L-Acoustics, an L-Group Company 13 rue Levacher Cintrat – 91460 Marcoussis – France +33 1 69 63 69 63 – info@l-acoustics.com www.l-acoustics.com L-Acoustics GmbH L-Acoustics Ltd. L-Acoustics Inc. Steiermärker Str. 3-5 PO. Box Adler Shine - Aston House 2645 Townsgate Road, Suite 600...

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