Attach The Collar To The Garage Door Opener; Attach Mounting Bracket To Garage Door Opener; Position And Mount The Garage Door Opener; Attach The Emergency Release Rope And Handle - LiftMaster LM3800W Manual Del Usuario

9

Attach the Collar to the Garage Door Opener

To avoid installation difficulties, do not run the garage door opener until instructed to do so.
The garage door opener can be installed on either side of the door (see Planning section). The illustrations shown are for installation on
the Illustations Sheet.
1. Loosen the set screws.
2. Attach collar to the garage door opener motor shaft. The side of the collar with the larger hole should be placed on the motor shaft.
3. Ensure that the collar is seated all the way on motor shaft until stop is reached.
4. Position the collar so the screws are facing out and are accessible when attached to the torsion bar.
5. Securely tighten the 2 square head set screws closest to the motor shaft by turning the screws 1/4 - 1/2 turn after making contact with the motor
shaft.
10

Attach Mounting Bracket to Garage Door Opener

1. Loosely attach slotted side of mounting bracket to the same side of the garage door
opener as the collar, using screws provided.
NOTE: Do not tighten screws until instructed.
11

Position and Mount the Garage Door Opener

Concrete anchors MUST be used if mounting bracket into masonry. NEVER try to loosen, move or adjust garage door,
springs, cables, pulleys, brackets or their hardware, ALL of which are under EXTREME tension. ALWAYS call a trained door
systems technician / installer / specialist if garage door binds, sticks or is out of balance. An unbalanced garage door might
NOT reverse when required. Garage door opener MUST be mounted at a right angle to the torsion bar to avoid premature
wear on the collar. Consider on-site requirements.
NOTE: For additional mounting options refer to the accessories page.
1. Close the garage door completely.
2. Slide the garage door opener onto the end of the torsion bar. If the torsion bar is too long or damaged, you may need to cut the torsion bar.
Ensure the collar does NOT touch the bearing.
3. Use a level to position and vertically align the garage door opener. Verify the mounting bracket is located on a solid surface such as wood,
concrete or door/flag bracket. If installing on drywall, the mounting bracket MUST be attached to a stud.
4. When the garage door opener is properly aligned, mark the mounting bracket holes. If necessary, tighten collar screws on the torsion bar to hold
garage door opener in place while marking holes. NOTE: The garage door opener does not have to be flush to wall.
5. Remove the garage door opener from torsion bar. Drill 5 mm pilot holes at the marked locations. Drill through metal door rail plates if necessary.
6. Slide the garage door opener back onto the torsion bar until pilot holes align with bracket.
7. Tighten the 2 square head set screws on the torsion bar. For a hollow torsion bar, tighten screws 3/4 - 1 full turn after making contact with the
bar. For a solid shaft torsion bar, tighten screws 1/4 - no more than 1/2 turn after making contact with the shaft. If installing on a keyed torsion
bar, DO NOT tighten the screws into the keyway.
8. Secure the mounting bracket to the wall and to the garage door opener. Use the screws (12) to secure the mounting bracket to the wall.
12

Attach the Emergency Release Rope and Handle

If possible, use emergency release handle to disengage door ONLY when garage door is CLOSED. Weak or broken springs
or unbalanced door could result in an open door falling rapidly and/or unexpectedly.
NEVER use emergency release handle unless garage doorway is clear of persons and obstructions.
1. Insert one end of the emergency release rope through the handle. Make sure that "NOTICE" is right side up. Secure with an overhand knot at
least 2.5 cm from the end of the rope to prevent slipping.
2. Insert the other end of the emergency release rope through the hole in the trolley release arm. Mount the emergency release within reach, but at
least 1.83 m above floor, avoiding contact with vehicles to prevent accidental release and secure with an overhand knot.
NOTE: If it is necessary to cut the rope, heat seal the cut end with a match or lighter to prevent unraveling.
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