Position And Mount The Garage Door Opener - Chamberlain LiftMaster Elite Security+ 3800PLD Installation Manual

Installation
1

Position and Mount the Garage Door Opener

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 plate.
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/fl ag
bracket.
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 fl ush to wall.
5
Remove the garage door opener from torsion bar. Drill 3/16 inch pilot holes at the
marked locations. Drill through steel plate if necessary.
6
Slide the garage door opener back onto the torsion bar until pilot holes align with
bracket. Securely tighten collar screws to the torsion bar to 12-14 ft./lbs. of torque.
7
Securely tighten both set screws.
NOTE: You may need to manually raise the door slightly in order to reach the
set screws.
8
Secure the mounting bracket to the wall and to the garage door opener. Use the
14-10x1-7/8 inch screws to secure the mounting bracket to the wall.
9
Secure the antenna wire with a staple to prevent antenna from being entangled in a
door roller.
3
9
2
6
Bearing
Plate
3/16" Hex
Key Wrench
1
5
4
7
Collar
Screws
Set
Screws
1/8" Hex
Key Wrench
8
8
To prevent possible SERIOUS INJURY
or DEATH:
• 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 if garage door binds,
sticks or is out of balance. An
unbalanced garage door might NOT
reverse when required.
• Operator MUST be mounted at a
right angle to the torsion bar to avoid
premature wear on the collar.
HARDWARE
Staple
14-10x1-7/8" Hex Screw