Yamaha F15 - Manual (Page 4)

4
Hanging installation
The F12/F15 can be installed hanging. Remove the four countersunk screws on the top or bottom of the speaker system,
screw in the four accessory eye bolts and hang with wire.
Warning: • Always use the accessory eye bolts.
• Always hang with four eye bolts on one surface.
• Do not use the handle to hang the speaker system.
■ Standards and use conditions for flying
1 Always hang from four points. (Figure 1)
2 Use the fittings for the F12/F15 with a total load no greater than 172 kg including the speakers, eye bolts, wires, etc.
3 Use with a hanging angle of no greater than 45
°
. (Figure 2)
4 When hanging in a vertical array, use no more than 4 levels of F12s or 3 levels of F15s.
5 Verify the strength of wire rope, ceiling fittings, and connection fittings.
* 1 – 5 above are reference values.
(Figure 1: Always hang from four points.) (Figure 2: Retraction angle 45
°
maximum)
■ Maintenance inspection
Parts can deteriorate due to wear, corrosion, etc. during use. For the sake of safe usage, inspect periodically.
When hanging the speaker system, carry out the work under the guidance of an expert with a safe method appropri-
ate to the actual installation and environment.
Eye bolt (3/8")
Countersunk screw
45
°
maximum