Instructions for Installing a 3800 LiftMaster

Position the Opener

• 1

  Close the garage door completely.

• 2

  Align and slide the opener over the end of the garage door's torsion bar.

• 3

  Mark the bracket holes with your pen.

• 4

  Remove the opener.

• 5

  Loosen the collar screws from the torsion bar and drill holes at the marked locations.

• 6

  Reattach the opener and place the screws where the torsion bar and bracket meet. Tighten the screws and make sure that they are secure.

Emergency Release Rope and Handle

• 7

  Get the red plastic handle that has "NOTICE" on it and put one end of the rope through the hole on its top. To prevent slipping, secure it with a knot that is at least one inch from the end of the rope.

• 8

  Place and knot the other end of the rope through the loop in the emergency release cable.

• 9

  Adjust the length of the rope, making sure the red handle is within reach of someone standing in the garage. Ideally, it should be no higher than six feet off the floor.

Power Door Lock

• 10

  Select a roller to mount the lock on, preferably on the same side of the door as the motor unit.

• 11

  Clean the rail surface and stick the lock template on. Make sure that the bottom edge of the template is just above the highest point on the roller.

• 12

  Follow the markings on the template when drilling the holes and fasten the power door lock to the outside of the garage door track with the provided hardware (lock screw and staples).

• 13

  Attach the bell wire up the wall to the motor unit, securing it with the insulated staples.

• 14

  Plug the connector into the motor unit.

Cable Tension Monitor

• 15

  Ensure that the cable tension monitor is located over a wood support member before positioning it as close as possible to the drum.

• 16

  Mark the screw holes based on their positions on the monitor and drill the holes.

• 17

  Secure the monitor to the wall using the provided screws while making sure the roller is on top of the cable.

• 18

  Run the bell wire to the motor unit while securing with the provided insulated staples.

• 19

  Attach the bell wire to the green quick-connect terminals.

Control Console

• 20

  Ensure that console is located within sight of door and a minimum of five feet above the ground, out of reach from small children and away from the moving parts of the door and its related hardware.

• 21

  Remove 11mm of insulation from one end of the bell wire and connect to the two screw terminals, located at the back of the console, based on color. The white wire goes to the terminal marked W(2) while the red/white wire goes to the one marked R(1).

• 22

  Gently remove push-bar cover by wedging the flat-head screwdriver into the space located at the lower middle part of the cover. Attach using the accompanying screws, with the bottom screw being positioned into the wall first. Line up the hole on the bottom of the console with the screw head and slide it down to secure.

• 23

  Carefully fasten the top part of the console with the other screw, making sure not to crack the plastic housing due to it being too tight.

• 24

  Run the bell wire across to the motor unit, being sure to fasten it with insulated staples and taking care not to puncture the wire while doing so.

• 25

  Strip 11mm of insulation from the other end of the bell wire and attach to the motor unit via the quick-connect terminals. The white wire connects to the white terminal, while the red/white wire connects to the red terminal.

Install Remote Light

• 26

  Survey the ceiling for an appropriate location for the light base to be attached. Make sure it is within six feet of an electrical outlet and away from the moving parts.

• 27

  Attach latch clips by sliding them in the space located between the metal plate and plastic housing on each side of the light base.

• 28

  Screw the mount plate onto the chosen spot and be sure to leave one-eight inch of the thread exposed.

• 29

  Push the light base onto the head of the exposed screws and turn clockwise to lock into place.

• 30

  Attach the light lens cover by snapping its hinges onto the latch clips on the side of the light base. Plug into the outlet.

Install the Protector System

• 31

  Slip the curved arms of the sensor bracket over the edge of the garage door track and snap into place. It is recommended that the sensor be a maximum of six inches off the ground.

• 32

  Insert the carriage bolt head on the slot of each sensor, using wing nuts to fasten each

  sensor to the bracket. Be sure the sensors are facing each other and are not obstructed by

  the bracket.

• 33

  Run the wires from each sensor to the opener, using the insulated staples to secure them along the wall.

• 34

  Remove 11mm of insulation from each set of wires and attach them to the

  quick-connect terminals on the opener. The white wire connects to the white terminal and the white/black wire to the gray terminal.

• 35

  Plug in the opener and observe the sensors. The indicator lights should be glowing steadily if wiring and alignment were done correctly.