Fastenthe Door Bracket; Sectional Doors - Craftsman 139.53918D Manual Del Propietário

INSTALLATION STEP 12
Fastenthe Door Bracket
Follow instructions which apply to your door type as illustrated
below or on the following page.
A horizontal reinforcementbrace shouldbe long enoughto be
securedto two or three vertical supports,A vertical
reinforcementbrace shouldcover the height of the top panel,
Figure 1 shows one 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 caseyou will
not need the door bracket, proceed to 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.
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, drill holes and install as follows, depending on your
door's construction:
Metal or light weight doorsusing a vertical angle iron brace
between the door panel supportand the door bracket:
• 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 factory
reinforced doors:
• Drill 3/16" fastening holes. Secure the door bracket using the
self-threading screws (Figure 3).
WoodDoors:
• 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.
Fiberglass, aluminum or lightweight steel garage doors WILL
REQUIREreinforcement BEFORE installation of door bracket.
Contact your door manufacturer for reinforcement kit.
Vertical
Centerline of
Garage Door
Figure 1
HORIZONTALAND VERTICAL
- REINFORCEMENTIS NEEDEDFOR
LIGHTWEIGHTGARAGEDOORS
(FIBERGLASS, ALUMINUM, STEEL,
DOORS WITH GLASSPANEL, ETC.).
(NOT PROVIDED)
Vertical
Reinforcement
o: eernti ra,',oe o,
o °P
Door Bracket
Self-Threading Screw
1/4"- 14x5/8"
Vee 'c '
Door Bracket_ _ _'_..
Lock Washer 5/16"9_.
Nut 5/16"-18
Figure 2B
Figure 2A
HARDWARESHOWN
ACTUALSIZE
- ° - _-_JSelf-Threading
Screw 1/4"-14x5/8"
Vertical Centerline
of Garage Door
\
/_ Self-Threading
"_1_, Screw 1/4"-14x5/8"
Figure3
(Not Provided)
Bolt 5/16"x2"
Inside Edge of Door or
Reinforcement Board
Vertical --
Centerline of Q
Garage Door
Figure4
23