If you are tired of manually opening and closing the garage door, automate the process by installing a garage door opener. You will be able to open and close the door with a remote control from the car or base unit. Installation is not difficult to do and you will be thankful for the time and effort the automatic opener saves you.
You will need:
• Automatic garage door opener
• Wire cutters
• Claw hammer
• 5/16, 3/16, and 5/32-inch drill bits
• 7/16, 9/16, 5/8, ¼, and ½-inch sockets
• Step ladder
• Tape measure
• Carpenter’s level
Step 1: Disable the garage door lock and remove ropes that are connected to the door. Test door for balancing by lifting it halfway and releasing it. If it is balanced, it will remain in place. Completely raise and lower the door to ensure it is does not stick or bind. Have any issues addressed by a professional technician.
Step 2: Remove the straight arm for the door. Remove the hanging bracket located inside the front rail. Set these aside.
Step 3: Assemble the rail by aligning the relevant sections on a flat work surface. Slide tapered ends into large ends. Slide the trolley assembly along the rail from the back to the front. Fasten the rail to the motor unit.
Step 4: Put the idler pulley into the rail window. Install the bolt and use the lock washer and a nut to tighten it.
Step 5: Pull the belt around the pulley, ribbed side against the pulley, working it toward the trolley. Set the tension by turning the nut ¼ turn until the spring is released and the nut ring snaps against the trolley. Use a screwdriver to brace one end of the nut and use an open-end wrench to turn the other.
Step 6: Extend the inside vertical center line of the door onto the header wall over the door. This determines the location of the header bracket. Open the garage door and draw a horizontal line two inches above the high point with a sectional door and eight inches above for a single-piece door.
Step 7: Attach the header bracket to the ceiling or wall. If there is minimal clearance, mount the bracket upside down. Attach the rail to the header bracket.
Step 8: Place a 2×4 board on its side to create a two-inch rail to door distance. Set the door opener on top of the step ladder. The top of the door must be level with the top of this motor unit. Attach the door opener to the installed bracket.
Step 9: Install the lights, battery backup, and door control unit. Attach the emergency door release rope. The handle of the rope should rest six feet above the floor. If you must shorten the rope, use a match to heat-seal the cut end to prevent unraveling.
Step 10: Connect the door opener to the power source by hardwiring the unit or plugging in the electrical cord. Do not use a two-wire adapter or an extension cord. The opener has to be grounded.
Step 11: Install the safety-reversing sensors in the proper locations. Fasten the door to the bracket and connect the arm to the trolley.
Step 12: Program the upper and lower stop positions for the door to match the height of the vehicle and position of the garage floor.
Step 13: Put an empty cardboard box underneath the door and lower the door to test the safety-reversing sensors.