Chamberlain 1155, 1160, 80ad, 1150, 1140, 1146 Fasten the Door Bracket, Sectional Doors, Wood Doors

HARDWARE SHOWN ACTUAL SIZE

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, two 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.Centre the door bracket on the previously marked vertical centreline used for the header bracket installation. Note correct UP placement, as stamped inside the bracket.

2.Position the top edge of the bracket 50mm - 100mm (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 4.5mm (3/16") fastening holes. Secure the door bracket using the two 8mm x 13mm (1/4"- 14x5/8") self-threading screws. (Figure 2A)

•Alternately, use two 8mm (5/16") bolts, lock washers and nuts. (Figure 2B)

Metal, insulated or light weight factory reinforced doors:

•Drill 4.5mm (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 8mm (5/16") holes through the door and secure bracket with 8mm x 65mm (5/16"x2") carriage bolts, lock

washers and nuts (not provided). (Figure 4)

NOTE: The 8mm x 13mm
(1/4"-14x5/8") self-threading	Self-Threading
screws are not intended for	Screw
	8mm x 13mm
use on wood doors.

CAUTION

Fibreglass, aluminum or lightweight steel garage doors WILL REQUIRE reinforcement BEFORE installation of door bracket. To prevent damage to garage doors reinforce inside of door with angle iron both vertically and horizontally.

HARDWARE SHOWN ACTUAL SIZE

Carriage Bolt 8mm x 65mm

Nut 8mm

Lock Washer 8mm

Sheet Metal Screw

Figure 1

	Vertical
	Reinforcement
Vertical		Vertical
Reinforcement		Centreline
		of Garage Door
Vertical	Bolt
Centreline
	8mm x 65mm
of Garage Door
		UP
	Door
UP	Bracket
Door	Lock Washer
	8mm	Nut
Bracket
		8mm
Self-Threading
Screw		Figure 2B
8mm x 13mm

Figure 2A

	Inside Edge
	of Door or
	Reinforcement Board
Bolt
8mm x 65mm
	UP
Vertical
Centreline
of Garage Door	Vertical
UP	Centreline
	of Garage
	Door
Self-Threading	Figure 4
Screw
8mm x 13mm

Figure 3

114A2845 21