Procedure - L-Acoustics arcs wide Rigging Manual

ARCS WIDE SYSTEM / ARCS
®
rigging manual
VERSION 3.0

5.1.3 Procedure

If you are raising a hybrid array (ARCS
1. Select the WIFOLIFT and WIFOLIFTBAR holes to define a starting point.
The values given in the Tilt angle reference chart can be used as a guideline.
Select the array which composition is the closest to your hybrid array and use the indicated WIFOLIFT and
WIFOLIFTBAR.
For example, to reach a 0,2° tilt angle with an array of 2 ARCS
WIDE array and use WIFOLIFT hole n
2. Attach two swivel shackles to the indicated holes on a WIFOLIFTBAR.
3. Attach the WIFOLIFTBAR to the indicated hole on the two WIFOLIFT.
a. Attach a rigging arm to the selected hole on each WIFOLIFT by driving and securing the pierced bolt.
b. Pass the U-shaped part of the shackle through the swivel shackle loop.
c. Attach the bow shackle to the arm.
d. Secure the shackle.
4. Raise the array so you can measure the angle.
If you are not satisfied, lower the array to the ground and adjust the angle by picking another hole.
If you are satisfied with the angle, continue.
Risk of fall.
The WIFOLIFT must be parallel to the top of the array. Any other situation creates mechanical stress and can
cause the WIFOLIFT to pop out.
5. Verify that the central bar of the two WIFOLIFT is parallel to the top of the array.
If it is parallel, the array is ready.
If it is not parallel, follow these steps:
a. Lower the array to the ground.
b. Change the swivel shackles rigging holes on the WIFOLIFTBAR so that the rigging arm and the swivel shackle
form a straight line.
c. Repeat step 5 until the central bar of the WIFOLIFT is parallel to the top of the array.
If you are raising an homogeneous array,
1. Select the appropriate WIFOLIFT and WIFOLIFTBAR holes using the Tilt angle reference chart on the previous
page
2. Attach two swivel shackles to the indicated holes on a WIFOLIFTBAR.
3. Attach the WIFOLIFTBAR to the indicated hole on the two WIFOLIFT.
a. Attach a rigging arm to the WIFOLIFT hole by driving and securing the pierced bolt.
b. Pass the U-shaped part of the shackle through the swivel shackle loop.
c. Attach the bow shackle to the arm.
d. Secure the shackle.
ARCSWIFO_RM_EN_3.0
® WIDE and FOCUS), follow these steps:
o
7 and WIFOLIFTBAR hole n
w w w . l - a c o u s t i c s . c o m
FOCUS SYSTEM
®
® WIDE and 1 ARCS ® FOCUS, refer to the 3 ARCS
o
8.
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