Fasten Thedoorbracket - Craftsman 139.53904D Owner's Manual

iNSTALLATiON STEP 1 1
Fasten theDoorBracket
Follow instructions which apply to your door type as illustrated
below or on the following page.
A horizontal reinforcementbrace should be ions enough
to be securedto two or three vertical supports. A vertical
reinforcementbrace shouldcoverthe height of the top panel.
Figure 1 shows one pieceof 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 Step 12.
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.
2. Position the top edge of the bracket 2"-4"(5-10 cm) below the
top edge of the door, OR directly below any structural support
across the top of the door.
3. Mark, drift holes and install as follows, depending on your
door's construction:
Metal or light weight doors using a vertical angle iron brace
between the doorpanel support and the doorbracket:
* Drill 3/16" fastening holes. Secure the door bracket using the
two 1/4"-14x5/8" self-threading screws (Figure 2A).
* Alternately, use two 5/16" bolts, lock washers and nuts (not
provided) (Figure 2B).
Metal, insulated or light weight factoryreinforced doors:
* Drill 3/16" fastening holes. Secure the door bracket using the
self-threading screws (Figure 3).
Wood Doors:
* Use top and bottom or side to side door bracket holes. Drill
5/16" holes through the door and secure bracket with 5/16"x2"
carriage bolts, lock washers and nuts (not provided) (Figure 4).
NOTE: The 1/4"-14x5/8"self-threading screws are not intended for
use on wood doors.
HARDWARE
SHOWN ACTUAL
SIZE
If-Threading
rew
"-14x5/8"
Fiberglass, aluminum or lightweight steel garage doors will
require reinforcement BEFORE installation of door bracket.
Contact your door manufacturer for reinforcement kit.
Vertical
Centerline
of Garage
Door
Figure 1
Vertical
Reinforcement
Vertical
Centerline
o_arage Door
=
Self-Threading
Screw 1/4"-14x5/8"
Figure 2A
_rtical
Centerline
of Garage Door
UP
Figure 3
Screw
1/4"-14x5/8"
Vertical
Reinforcement
,_ Vertical
(_£ 1071 _ LI Centerline
7ollolol
of ?rage Door
Bolt/
TIIo[Ol :
5/16"-18x2"
IOILIbl.
-
(Not Provided)
totl?hl "-¢_.
H Lu.p.eh' uP
ort O0.
5/16" I_ut _-
5/16"-18
Figure 2B
Inside Edge
of Door or
Reinforcement Board
Bolt
/16x2.
/"°t P r°vided/% /
Vertical "__-
Centerline __
of Garage _ _'-_.
Door
7
Figure 4
23