Craftsman 139.53661SRT1 owner manual AssembletheDoorArm, Adjustment Procedures for One-Piece Doors

AssembletheDoorArm:

• Fasten the straight and curved door arm sections	ooor	PJ_
together to the longest possible length (with a 2 or

3 hole ovedap).

•With the door closed, connect the straight door arm

section to the door bracket with the 5/16"xl -1/4"	cle_sF_n
clevis pin.	_ls'xl.t/4"
• Secure with a ring fastener.	SctN
	5/16"-18X7/8

On one-piece doors, before connectingthe door arm to _ trolleythe travel limits must be adjusted. Limit adjustment screws are located on the left side panel as shown on page 28. Follow adjustment procedure s below.

FuUyClosed

Trolley

...............	Conne_of Hole
.. ,.,A' _
....... •-_ o o ° .	Do(x Ann
................t	.:22222JJ I
	.....--'°l

I

Adjustment Procedures for One-Piece Doors

Open Door Adjustment:

Decrease UP limit

•Turn the UP limit adjustment screw counter- clockwise 5-1/2 turns.

•Press the Door Control push bar or button. The trolley will travel to the fully open position.

•Manually raise the door to the open position (parallel to the floor), and lift the door arm to the

trolley. The arm should touch the trolley just in back of the door arm connector hole. Refer to the

fully open trolley/door arm positions in the illustration. If the arm does not extend far enough, adjust the limit further. One full tum equals 2" of trolley travel.

Closed Door Adjustment:

Decrease DOWN limit

•Turn the DOWN limit adjustment screw clockwise 5 complete turns.

•Press the Door Control push bar or button. The trolley will travel to the fully closed position.

•Manually close the door and lift the door arm to the trolley. The arm should touch the trolley just ahead of the door arm connector hole. Refer to the fully closed trolley/door arm positions in the illustration. If the arm is behind the connector hole, adjust the limit further. One full turn equals 2" of trolley travel.

Connect the door arm to the trolley,

•Close the door and join the curved arm to the connector hole in the trolley with the remaining clevis pin. It may be necessary to lift the door slightly to make the connection.

•Secure with a dng fastener.

•Run the opener through a complete travel cycle. If the door has a slight "backward" slant in full open position as shown in the illustration, decrease the UP limit until the door is parallel to the floor.

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