Chamberlain 1000SDR 1/3 HP, 2000SDR 1/2 HP Position the Opener, SECTIONAL Door or, ONE-PIECEDoor with Track, ONE-PIECEDoor without Track, Follow instructions which apply to your door type as illustrated

Installation Step 5

Position the Opener

Follow instructions which apply to your door type as illustrated.

SECTIONAL Door or

ONE-PIECE Door with Track

A 2x4 laid flat is convenient for setting an ideal door- to-rail distance.

• Raise the opener onto a stepladder.

You will need help at this point if the ladder is not tall enough.

•Open the door all the way and place a 2x4 laid flat on the top section beneath the rail.

If the top panel hits the trolley when you raise the door, pull down on the trolley release arm to disconnect the inner and outer sections. The trolley can remain disconnected until Step 12 is completed.

Trolley

Trolley

Release Arm

ONE-PIECE Door without Track

•With the door fully open and parallel to the floor, measure the distance from the floor to the top of the door.

•Using a stepladder as a support, raise the opener to the same distance as the door from the floor (it will be at a slight angle as shown).

•The top of the door should be level with the top of the opener. Do not position the opener more than 3" above this point.

CAUTION

To prevent damage to steel, alumin um, fiberglass or glass panel doors, do not rest the opener on the door without using a 2x4.

Rail	2x4
Door	Foam
	Packaging

Header

Bracket

Top of Opener

Foam

Packaging

Top of Door

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