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Liftmaster 8587 Elite Manual

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To preventpossible SERIOUS INJURY or
DEATH:
• Header bracketMUSTbe RIGIDLY
fastened to structural support on header
wall or ceiling,otherwise garage door might
NOTreverse when required. DO NOT
install header bracketover drywall.
• Concrete anchors MUSTbe used if
mounting header bracketor 2x4 into
masonry.
• NEVER try to loosen, move or adjust
garage door, springs,cables, pulleys,
brackets,or their hardware, ALL ofwhich
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.
1 Determine the header bracket location
NOTE: If you are installing the garage door opener on a one-piece door, visit www.liftmaster.com for
installation instructions.
1.1 Close the door and mark the inside vertical centerline of the garage door.
1.2 Extend the line onto the header wall above the door.
Youcan fasten the header bracket within 4 feet (1.22 m) of the left or right of the door
center only if a torsion springorcenterbearingplate is in the way; oryou can attach it to
the ceilingwhen clearance is minimal. (It may be mounted on the wallupside down if
necessary,to gain approximately 1/2" (1 cm).
If you need to install the header bracketon a 2x4 (on wall or ceiling),use lag screws(not
provided) to securelyfasten the 2x4 to structural supports.
1.3 Open your door to the highestpoint oftravel as shown. Draw an intersecting horizontal line on
the header wall 2" (5 cm) above the high point. This heightwill provide travel clearance for the
top edge of the door.
NOTE: If the total number of inches exceeds the height available in your garage, use the maximum
height possible, or refer to page 8 for ceiling installation.
Sectional door with curved track
Header
Wall
Track
2" (5 cm)
Highest Point
of Travel
Door
Header Wall
Unfinished
Ceiling
Vertical Centerline
of Garage Door
2x4
2x4
Structural
Supports
Level
(Optional)
OPTIONAL
CEILING
MOUNT FOR
HEADER
BRACKET
… 7 …


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