Craftsman 139.53920DM Manual Del Propietário página 23

INSTALLATION STEP 1 1
Fasten the DoorBracket
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 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, 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, insulatedor light weightfactory 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.
HARDWARE SHOWN
ACTUAL SIZE
Self-Threading
Screw
1/4"-14x5/8"
Fiberglass, aluminum or lightweight steel garage doors WILL
REQUIREreinforcement BEFORE installation of door bracket.
Contact your door manufacturer for reinforcement kit.
Figure 1
Door
Bracket
Location
Vertical
Centerline
of Garage
Door
HORIZONTAL AND VERTICAL
REINFORCEMENTIS NEEDEDFOR
LIGHTWEIGHT GARAGEDOORS
(FIBERGLASS, ALUMINUM, STEEL,
DOORS WITH GLASS PANEL, ETC.).
(NOT PROVIDED)
III IIII I
Vertical
_fl_,,_olOl Verti:_iC_ri:trline
arage Door
Door gracket_" _-UP
Self-Threading---"_
Screw 1/4"-14x5/8"
Figure 2A
(Not Provided 11_
_'C_% [Io101 VerticalCenterline
"%." [Io101 of Garage Door
- iloH ==
Door Bracket
Lock Washer 5/16'_.
Nut 5/16"- 18
J
Figure 2B
ertical
Centerline
of Garage Door
Self-Threading
Screw
1/4"-14x5/8"
Bolt
5/16"x2" -.
(Not Provided)
Inside Edge
of Door or
Reinforcement Board
Vertical
Centerline
of Garage
Door
Figure 4
Figure 3
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