Fasten The Door Bracket - Chamberlain 2280-267 Owner's Manual

Chamberlain garage door opener owner's manual
Table of Contents

Advertisement

INSTALLATION STEP 11

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 or three vertical
supports. A vertical reinforcement brace should
cover 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 doors using a vertical angle
iron brace between the door panel support and
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)
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"
HARDWARE
self-threading screws are
SHOWN
ACTUAL SIZE
not intended for use on
wood doors.
Self-Threading
Screw
1/4"-14x5/8"
WARNING
CAUTION
Fiberglass, aluminum or lightweight steel garage doors
WILL REQUIRE reinforcement BEFORE installation of
door bracket. Contact your door manufacturer for
reinforcement kit.
Header
Bracket
Door
Bracket
Location
HORIZONTAL AND VERTICAL
REINFORCEMENT IS NEEDED
FOR LIGHTWEIGHT GARAGE
Vertical
DOORS (FIBERGLASS,
Centerline
of Garage
ALUMINUM, STEEL, DOORS
Door
WITH GLASS PANEL, ETC.).
(NOT PROVIDED)
Figure 1
Vertical
Reinforcement
(Not Provided)
Vertical
Vertical
Centerline
Reinforcement
of Garage Door
Vertical
Bolt
Centerline
5/16"-18x2"
of Garage Door
UP
Door
Bracket
UP
Lock Washer
Door
5/16"
Nut
Bracket
5/16"-18
Self-Threading
Screw
Figure 2B
1/4"-14x5/8"
Figure 2A
Inside Edge
(Not Provided)
of Door or
Reinforcement Board
Bolt
5/16"x2"
UP
Vertical
Centerline
of Garage Door
Vertical
Centerline
UP
of Garage
Door
Figure 4
Self-Threading
Screw
1/4"-14x5/8"
Figure 3
Page 19

Hide quick links:

Advertisement

Table of Contents
loading

Table of Contents