User manual LIFT-MASTER 41A5281

[. . . ] · Install the safety reversing sensor so beam is NO HIGHER than 6" (15 cm) above garage floor. INSTALLING THE BRACKETS CAUTION THE PROTECTOR SYSTEM®\ The safety reversing sensor must be connected and aligned correctly before the garage door opener will move in the down direction. This is a required safety device and cannot be disabled. When properly connected and aligned, the safety reversing sensor will detect an obstacle in the path of its electronic beam. The sending eye (with a amber indicator light) transmits an invisible light beam to the receiving eye (with a green indicator light). [. . . ] Snap into place against the side of the track. It should lie flush, with the lip hugging the back edge of the track, as shown. If your door track will not support the bracket securely, wall installation is recommended. Figure 2 DOOR TRACK MOUNT (Right Side) Door Track Lip Indicator light Sensor Bracket Lens Figure 1 Wall Installation With Extension Bracket: · Place the bracket against the wall and make sure there is enough clearance for the sensor beam to be unobstructed. · If additional depth is needed, an extension bracket or wood blocks can be used. · Use bracket mounting holes as a template to locate and drill (2) 3/16" diameter pilot holes on the wall at each side of the door, from 4­6" above the floor. · Attach brackets to wall with lag screws (provided with extension brackets). · If using extension brackets or wood blocks, adjust right and left assemblies to the same distance out from the mounting surface. Make sure all door hardware obstructions are cleared. WALL MOUNT (Right Side) Extension Bracket (Provided with Extension Bracket) Sensor Beam 4-6" max. above floor Sensor Beam 4-6" max. above floor Figure 3 Invisible Light Beam Protection Area ide Ins ge ra Ga all W Facing the door from inside the garage Sensor Bracket Indicator light (Provided with Extension Bracket) Lens 1 Floor installation with Extension Bracket: · Use wood blocks or extension brackets to elevate sensor brackets so the lenses will be 4-6" above the floor. · Carefully measure and place right and left assemblies at the same distance out from the wall. Be sure all door hardware obstructions are cleared. · Fasten to the floor with concrete anchors as shown. Figure 4 Lens Sensor Bracket FLOOR MOUNT (Right Side) Indicator light (Provided with Extension Bracket) ALIGNING THE SAFETY SENSORS · Plug in the opener. The indicator lights in both the sending and receiving eyes will glow steadily if wiring connections and alignment are correct. The sending eye amber indicator light will glow regardless of alignment or obstruction. If the green indicator light in the receiving eye is off, dim, or flickering (and the invisible light beam path is not obstructed), alignment is required. · Loosen the sending eye wing nut and readjust, aiming directly at the receiving eye. · Loosen the receiving eye wing nut and adjust sensor vertically and/or horizontally until it receives the sender's beam. [. . . ] Be sure the lens is not obstructed by a bracket extension. · Finger tighten the sensor wing nuts. · Run the wires from both sensors to the opener. Use insulated staples to secure wire to wall and ceiling. [. . . ]