Craftsman 139.53637SRT1 Owner's Manual download pdf (Page 27)

AssembletheDoorArm:

• Fasten the straight and curved door arm sections

together to the longest possible length (with a 2 or

3 hole overlap).

• With the door closed, connect the straight door

arm section to the door bracket with a clevis pin.

• Secure with a ringfastener.

Door

Bracket

ClevtsP_

Str_dght

Ann

5/16"-18x9'/8 _-_

Cun/ed

Do_xAnn

On one-piece doors, before connectingthe door arm to bhetrolleythe travel limitsmust be adjusted. Umit adjustment

screws are located on the left side panel as shown on page 28. Follow adjustment procedures below.

FuiyC_)sed

Trolley

..... .'__-"

C_sed

Door

Open Door Doorwith

I BackwardSlant

DoorAnn

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 Wall 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 liftthe 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 turn equals 2" of

trolley travel.

Closed Door Adjustment:

Decrease DOWN limit

•Tum the DOWN limit adjustment screw clockwise 5

complete turns.

• Press the Wall control push bar or button. The

trolley will travel to the fully closed position.

• Manually close the door and liftthe door arm to the

trolJey.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 tum 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 ring fastener.

• Run the opener through a complete travel cycle. It the door has a slight "backward" slant in full open position

as shown in the illustration;'decrease the UP limit untilthe door is parallel to the floor.

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Craftsman 139.53637SRT1 Owner's Manual Page 27

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