Fasten The Door Bracket - Craftsman 139.53985DM Owner's Manual

1/2 hp 315mhz garage door opener for residential use only
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INSTALLATION
STEP
11
Fasten
the Door
Bracket
Follow instructions which apply to your door type
as illustrated below or on the following page.
A horizontal
reinforcement
brace should
be long
enough to be secured to two vertical
supports.
A
vertical
reinforcement
brace should
cover the height
of the top panel.
The illustration shows one piece of angle iron as the
horizontal brace. For the vertical brace, two pieces of
angle iron are used to create a U-shaped support (Figure
1). The best solution is to check with your garage door
manufacturer for an opener installation door
reinforcement
kit.
NOTE: Many vertical brace installations provide for direct
attachment of the clevis pin and door arm. In this case
you will not need the door bracket; proceed to Installation
Step 12.
SECTIONAL DOORS
• Center the door bracket on the previously marked
vertical centerline used for the header bracket
installation. Note correct UP placement, as stamped
inside the bracket (Figure 2).
• Position the bracket on the face of the door within the
following limits:
A) The top edge of the bracket 2"-4" (5-10 cm) below
the top edge of the door.
B) The top edge of the bracket directly below any
structural support across the top of the door.
Fiberglass, aluminum or lightweight steel garage doors
WILL REQUIREreinforcement BEFORE installation of door
bracket. Contact your door manufacturer for reinforcement
kit.
HARDWARE
SHOWN ACTUAL
SIZE
Nut 5/16"-18
Lock Washer
5/16"
Carriage Bolt
5/16"-18x2-1/2'
• Mark and drill 5/16" left and right fastening holes.
Secure the bracket as shown in Figure 1 if there is
vertical reinforcement.
If your installation doesn't require vertical
reinforcement but does need top and bottom fastening
holes for the door bracket, fasten as shown in Figure 2.
Header Bracket
/
Horizontal
and vertical reinforcement
is needed for lightweight
garage doors
(fiberglass,
aluminum, steel, doors with
glass panel, etc.). (Not Provided)
Vertical
Reinforcement
ge
of Door or
einforcement
Board
Carriage Bolt
5/16"- 18x2-1/2'
Door
Bracket
_@
Lock
Washer
Door Bracket
Figure 2
Door
UP
=
Nut
5/16"-18
Figure 1
23

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