Craftsman 315 SERIES 139.53939D - Manual (Page 23)

23
Fiberglass, aluminum or lightweight steel garage doors
WILL REQUIRE reinforcement BEFORE installation of door
bracket. Contact your door manufacturer for
reinforcement kit.
INSTALLATION STEP 12
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 13.
SECTIONAL DOORS
1. 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).
2. Position the bracket on the face of the door within the
following limits:
• The top edge of the bracket 2"-4" (5-10 cm) below
the top edge of the door.
• The top edge of the bracket directly below any
structural support across the top of the door.
Vertical
Centerline
of Garage
Door
Door
Bracket
Location
Header Bracket
Horizontal and vertical reinforcement
is needed for lightweight garage doors
(fiberglass, aluminum, steel, doors with
glass panel, etc.). (Not Provided)
UP
Door Bracket
Inside Edge
of Door or
Reinforcement Board
Door
Bracket
Nut
5/16"-18
Carriage Bolt
5/16"-18x2-1/2"
Lock Washer
5/16"
Vertical
Centerline
of Garage
Door
UP
Vertical
Reinforcement
Carriage Bolt
5/16"-18x2-1/2"
Nut 5/16"-18 Lock Washer 5/16"
HARDWARE SHOWN ACTUAL SIZE
Figure 1
Figure 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.