Sharp AN-SV100T Instruction Manual page 18

Attaching the Anti-sway Plates (Continued)
Using the screws (x3) removed from the ceiling-mount rotating
module, attach the anti-sway plates to the module. Then tighten all
three screws.
Install the projector onto the ceiling using chains or wires strong
enough (commercially available).
* Reinforce the ceiling parts which bear the system's weight through the bolts as
required.
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