Chamberlain 2580 Fasten the Door Bracket, NOTE:, NOTE:, Figure, Figure, Figure, Figure 2B, Figure 2A, Wood Doors:, SECTIONAL DOORS

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" 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)

CAUTION

To prevent damage to garage door, reinforce inside of door with angle iron both vertically and horizontally.

Header

Bracket

Door
Bracket
Location
	HORIZONTAL AND VERTICAL
	REINFORCEMENT IS NEEDED
	FOR LIGHTWEIGHT GARAGE
Vertical	DOORS (FIBERGLASS,
Centerline	ALUMINUM, STEEL, DOORS
	WITH GLASS PANEL, ETC).
	(NOT PROVIDED)

Figure 1

		Vertical
	(Not Provided)	Reinforcement
Vertical			Vertical
Reinforcement			Centerline
Vertical	Bolt
	5/16"-18x2"
Centerline
			UP
	Door
UP	Bracket
	Lock Washer
Door	5/16"		Nut
Bracket
			5/16"-18
Self-Threading			Figure 2B
Screw
1/4"-14x5/8"
Figure 2A
	(Not Provided)		Inside Edge
			of Door or
			Reinforcement Board
	Bolt
	5/16"x2"
Vertical			UP
Centerline
UP	Vertical
	Centerline
Self-Threading

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"

Screw	Figure 4
1/4"-14x5/8"

Figure 3

20