Chamberlain 3453135556 Installation, Header and Door Mounting Brackets, Marking final height

2	INSTALLATION	FOR HELP-1.800.929.3667 OR OVERHEADDOOR.COM
		I M P O R TA N T
		WARNING :

To reduce the risk of severe injury or death:

11

1.READ AND FOLLOW ALL SAFETY, INSTALLATION AND OPERATION INSTRUCTIONS. If you have questions or do not understand an instruction, call Overhead Door Corp. or an authorized Overhead Door Dealer.

2.Do Not install operator on an improperly balanced door. An improperly balanced door could cause severe injury. Repairs and adjustments to cables, spring assembly, and other hardware must be made by a trained service person using proper tools and instructions.

3.Remove all ropes and disable all locks connected to the door before installing operator.

4.Install door operator 7 feet or more above floor. Mount emergency release knob 6 feet above floor.

5.Do Not connect the operator to the source of power until instructed to do so.

6.Locate the control button:

•Within sight of door.

•At minimum height of 5 feet, so small children cannot reach it.

•Away from all moving parts of the door.

7.Install the Entrapment WARNING Label next to the wall button or wall console. Install the emergency release tag on, or next to, the emergency release.

8.The operator must reverse when the door contacts a 1-1/2 inch high object on the floor at the center of the doorway. This is the size of a 2” x 4” board laid flat.

HEADER AND DOOR

MOUNTING BRACKETS:

CAUTION

Header bracket must be fastened to garage framing. Do Not fasten to drywall, particle board, plaster or other such materials.

1. Finding header bracket mounting location.

• Close garage door.

– Use a pencil.

- Mark center of garage door (one-half overall

width) with 6” vertical line at top edge of door.

- Continue this line on wall above door for

about 12" (Fig. 2-1).

• Raise garage door until top edge of door

from here to

floor

FIG. 2-1 Finding highest point of travel (sectional).

reaches its maximum height (Fig. 2-2).

• Place door at highest point.

– Measure height from top edge of door to floor.

• Close door again.

• Mark height measurement on wall above door.

– Make your mark across vertical line

made earlier.

• Marking final height:

The 2 basic types of garage door mechanisms are: Track guided doors–have rollers on each side whichride in “tracks” to guide the door up and down.

Trackless doors–swivel on large spring loaded hinges as the door opens and closes.

For track guided – add 2-1/2" to height mark just made on wall. This is location for header bracket.

NOTE: If spring or its shaft is in way, measure 2-1/2" above spring or shaft and mark this height as your location for header bracket.

For trackless – add 6"- 12” to your height mark just made on the wall. This is location for header bracket.

from here to

floor

FIG. 2-2 Finding highest point of travel (1-piece).

top of door

final height

mark

FIG. 2-3 Final height mark.