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Liftmaster 8587 Elite Manual

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Fiberglass,aluminum or lightweightsteel garage doorsWILLREQUIRE reinforcement BEFORE
installation of door bracket. Contact your door manufacturer for reinforcement kit.
Figure 1 showsone piece of angle iron as the horizontal brace.
For the vertical brace,2 pieces of angle iron are used to create a
U-shaped support. The best solution is to check with your garage
door manufacturer for an opener installation door reinforcement
kit.
NOTE: Many door reinforcement kits provide for direct attachment
of the clevis pin and door arm. In this case you will not need the
door bracket; proceed to the next step.
Self-Threading Screw
1/4"-14x5/8"
HARDWARE
SECTIONALDOORS
8.1 Center the door bracket on the previously marked vertical centerline used for the header bracket
installation.Note correctUP placement, as stamped inside the bracket.
8.2 Position the top edge of the bracket2"-4" (5-10 cm) below the top edge of the door,OR directlybelow
any structural support acrossthe top of the door.
8.3 Mark, drill holes and install as follows, depending on your door’s construction:
Metal orlight weight doors usinga vertical angle iron brace between the doorpanelsupport
andthe door bracket:
• Drill 3/16" fastening holes. Secure the door bracket using the two self threading screws.
(Figure 2)
• Alternately, use two 5/16" bolts,lock washers and nuts (not provided). (Figure 3)
Metal, insulated or light weight factory reinforceddoors:
• Drill 3/16" fastening holes. Secure the door bracket using the self-threading screws. (Figure 4)
WoodDoors:
• Use top and bottom or side to side door bracketholes.Drill 5/16” holes through the door and
secure bracketwith 5/16"-18x2" carriage bolts, lockwashers and nuts (not provided). (Figure 5)
NOTE: The 1/4"-14x5/8" self-threading screws are not intended for use on wood doors.
8 Install the door bracket
A horizontal and vertical reinforcement
is needed for lightweight garage doors
(fi berglass, aluminum, steel, doors
with glass panel, etc.) (not provided).
A horizontal reinforcement brace
should be long enough to be secured
to two or three vertical supports.
A vertical reinforcement brace should
cover the height of the top panel.
FIGURE 1
FIGURE 2
FIGURE 4
FIGURE 5
FIGURE 3
Vertical Reinforcement
Vertical Centerline
of Garage Door
UP
Door Bracket
Self-Threading Screw
1/4" - 14x 5/8"
Self-Threading
Screw
1/4" - 14x 5/8"
Vertical Reinforcement
Bolt 5/16"-18x2"
(Not provided)
Lock Washer 5/16"
Nut 5/16"-18
Door Bracket
UP
Vertical Centerline
of Garage Door
UP
Vertical
Centerline of
Garage Door
Bolt 5/16"-18x2"
(Not provided)
UP
Inside Edge of Door or
Reinforcement Board
Vertical Centerline
of Garage Door
Installation
… 12 …


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