[. . . ] Do not install in locations where there is vibration, movement or danger of impact. [. . . ] Getting the projector ready · The wall or ceiling structure must be capable of supporting at least five (5) times the weight of projector. Proper installation procedure by qualified personnel as outlined in the installations instructions must be adhered to. If installing the mount on other than wood studs use (commercially available) suitable hardware. Make sure the three knurl knobs are loosened to fully expose to the "tri-lock" mounting plate in the base of the upper assembly. Secure the rear safety knob (1) first to prevent further rotation of the bracket in the upper assembly. Tighten the remaining two tension knurl knob (2) until the mount becomes rigid. [. . . ] With the projector secured in the mount and power on and signal supplied to the projector you can now proceed with the final height, tilt, roll and yaw adjustments to optimize the projector image. [. . . ]