Jfl118 Arrays; Mixed Jfl213 & Jfl118 Arrays; Setting Array Tilt Angle - EAW JFL213 Owner's Manual

6.3.5 JFL118 Arrays

a. Using a 6mm Allen wrench, remove two (2) flat head
screws from the top panel of the uppermost array
enclosure. These screws are immediately adjacent to the
side Rigging Tubes – see Figure to the right. Do not re
move the screw adjacent to the single rear Rigging Tube.
b. Thread two (2) user-supplied M10 x 1.5 x 38 mm forged
shoulder eyebolts through the exposed mounting points,
making sure the eyebolt shoulders are firmly seated
against the enclosure. Orient each eyebolt so that the load
will be applied within the plane of the eye.
c. Attach the hoist mechanism and cables to the eyebolts
with user-supplied Screw Pin Anchor Shackles. Minimum
allowable Shackle size is 0.75 T, 9 mm / 0.31 in.
d. Hoist the array such that the bottom array enclosure is set
to a comfortable working height.
e. Using a 6mm Allen wrench, remove the flat head screw
adjacent to the single rear Rigging Tube from the bottom
panel of the lowest array enclosure – see Figure to right.
f. Thread one (1) user-supplied M10 x 1.5 x 38 mm forged shoulder eyebolt through the ex
posed mounting point, again making sure the eyebolt shoulder is firmly seated against the
enclosure. Orient the eyebolt so that the load will be applied within the plane of the eye.
g. Attach the pull back mechanism and cable to the eyebolt with a user-supplied Screw Pin
Anchor Shackle. Minimum allowable Shackle size is 0.75 T, 9 mm / 0.31 in.
h. Choose a target array tilt angle as guided by EAW Resolution. Hoist the array to its
desired trim height using the front point. Once trim is achieved, use the rear point to set
the array tilt angle. See Section 6.3.7 "Setting Array Tilt Angle" below for guidance.
6.3.6 Mixed JFL213 & JFL118 Arrays
Combinations of JFL213 and JFL118 Loudspeakers may be suspended in the same array.
When doing so JFL118s are always suspended above JFL213s.
a. Follow Steps a through d in Section 6.3.5 to first suspend JFL118 loudspeakers.
b. Join JFL213 loudspeakers to suspended JFL118 loudspeakers.
c. Follow Steps e through g in Section 6.3.4 to attach the array pull back mechanism.
d. Choose a target array tilt angle as guided by EAW Resolution. Hoist the array to its
desired trim height using the front point. Once trim is achieved, use the rear point to set
the array tilt angle. See Section 6.3.7 "Setting Array Tilt Angle" below for guidance.

6.3.7 Setting Array Tilt Angle

Normally the easiest method to determine array tilt angle is to use a clinometer such as the
simple, bubble-type angle finder, similar to that shown here. More fancy,
albeit more expensive, electronic clinometers can also be used.
Place the angle finder against the grille of the uppermost array enclo-
sure that can be physically reached. Adjust the angle of the entire array
so that the face of this enclosure is set at its prescribed aiming angle
given in the EAW Resolution.
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