Fasten The Door Bracket - Craftsman 139.53920D Owner's Manual

1/2 hp 315mhz garage door opener
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NSTALLATmON
STEP
t t
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
horizontaf
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 tn
this case you will not need the door bracket; proceed
to Installation
Step 12.
SECTIONAL BOORS
- Center the door bracket on the previously marked
vertical centerfine 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.
i CAUTBON
Fiberglass,aluminum or lightweightsteel garagedoors
WILL REQUIRE reinforcementBEFORE installation of
door brackeLContactyour door manufacturerfor
reinforcementkit
HARDWARE SHOWN ACTUAL SIZE
Nut 5115"q8
LockWasher
51_6'
Carriage
Bo]!
5!16"-t
8x2-1/2"
. Mark and drill 5/16" left end right fastening holes..
Secure the bracket as shown in Figure 1 if there is
vertical reinforcement.
If your installation doesn't require verticai
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
doors w_th
Figure 1
Figure 2
23

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