Craftsman 139.53664SRT2 owner manual Adjustment Procedures for One-Piece Doors

Assemble the Door Arm:

• Fasten the straight and curved door arm sections

together to the longest possible length, with a 2 or 3

DoorRing

Bracket _,_---._,._Ji_ Fastener

Loc_

Nuts

hole overlap,

• With the door closed, connect the straight door arm

section to the door bracket with the 5/16"xl -1/4"

clevis pin.

• Secure with a ring fastener.

Washers 5/16 -18

5/16"

Screw

Door Arm

On one-piece doors, before connecting the door arm to the trolley the travel limits must be adjusted. Limit adjust- ment screws are located on the left side panel as shown on page 28. Follow adjustment procedures below.

Folly Closed

Trolley

Fully Open

Trolley

					Door Arm
					Connector Hole
I
I
'	..................................		1	j.,_r_.
I
' Closed
I	Door	Open Door	Door with		Door Arm
I
I			Backward Slant

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. 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 turn equals 2" of trolley travel.

Connect the door arm to the trolley.

Closed Door Adjustment:

Decrease DOWN limit

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

•Press the Door Control push bar. 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.

•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 travet 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.

27