Chamberlain 3575CS NOTE:, limit, Figure, Figure, ALL ONE-PIECEDOORS, 1. Assemble the door arm, Figure 4:, 2. Adjustment procedures, Figure 5:

ALL ONE-PIECE DOORS	Door	Ring
1. Assemble the door arm, Figure 4:	Bracket	Ring
1. Assemble the door arm, Figure 4:		Fastener	Nuts
• Fasten the straight and curved door arm sections		Lock	Nuts
• Fasten the straight and curved door arm sections		Lock	5/16"-18
together to the longest possible length (with a 2 or 3		Washers
together to the longest possible length (with a 2 or 3		5/16"
hole overlap).	Clevis Pin	5/16"
hole overlap).	Clevis Pin	Straight
• With the door closed, connect the straight door arm	5/16"x1-1/4"	Arm
• With the door closed, connect the straight door arm		Bolts
section to the door bracket with the 5/16"x1-1/4" clevis		Bolts	Curved
pin.	Figure 4	5/16"-18x7/8	Curved
		5/16"-18x7/8	Door Arm
			Door Arm
• Secure with a ring fastener.	- Press the Door Control push button. The trolley will
2. Adjustment procedures, Figure 5:	- Press the Door Control push button. The trolley will
2. Adjustment procedures, Figure 5:	travel to the fully closed position.
• On one-piece doors, before connecting the door arm	travel to the fully closed position.
• On one-piece doors, before connecting the door arm	- Manually close the door and lift the door arm to the
to the trolley, the travel limits must be adjusted. Limit	- Manually close the door and lift the door arm to the
to the trolley, the travel limits must be adjusted. Limit	trolley. The arm should touch the trolley just ahead of
adjustment screws are located on the left side panel	trolley. The arm should touch the trolley just ahead of
adjustment screws are located on the left side panel	the door arm connector hole. Refer to the fully closed
as shown on page 23. Follow adjustment procedures	the door arm connector hole. Refer to the fully closed
as shown on page 23. Follow adjustment procedures	trolley/door arm positions in the illustration. If the arm
below.	trolley/door arm positions in the illustration. If the arm
below.	is behind the connector hole, adjust the limit further.
• Open door adjustment: decrease UP travel limit	is behind the connector hole, adjust the limit further.
• Open door adjustment: decrease UP travel limit	One full turn equals 3" (7.5 cm) of trolley travel.
- Turn the UP limit adjustment screw counter-clockwise	3. Connect the door arm to the trolley:
4 turns.	• Close the door and join the curved arm to the
- Press the Door Control push button. The trolley will	• Close the door and join the curved arm to the
- Press the Door Control push button. The trolley will	connector hole in the trolley with the remaining clevis
travel to the fully open position.	pin. It may be necessary to lift the door slightly to make
- Manually raise the door to the open position (parallel	the connection.
to the floor), and lift the door arm to the trolley. The	• Secure with a ring fastener.
arm should touch the trolley just in back of the door	• Run the opener through a complete travel cycle. If the
arm connector hole. Refer to the fully open trolley/	• Run the opener through a complete travel cycle. If the
arm connector hole. Refer to the fully open trolley/	door has a slight "backward" slant in full open position
door arm positions in the illustration. If the arm does	door has a slight "backward" slant in full open position
door arm positions in the illustration. If the arm does	as shown in the illustration, decrease the UP limit until
not extend far enough, adjust the limit further. One	as shown in the illustration, decrease the UP limit until
not extend far enough, adjust the limit further. One	the door is parallel to the floor.
full turn equals 3" (7.5 cm) of trolley travel.	the door is parallel to the floor.
full turn equals 3" (7.5 cm) of trolley travel.	NOTE: When setting the up limit on the following page, the
• Closed door adjustment: decrease DOWN travel	NOTE: When setting the up limit on the following page, the
• Closed door adjustment: decrease DOWN travel	door should not have a "backward" slant when fully open
limit	door should not have a "backward" slant when fully open
limit	as illustrated below. A slight backward slant will cause
- Turn the DOWN limit adjustment screw clockwise	as illustrated below. A slight backward slant will cause
- Turn the DOWN limit adjustment screw clockwise	unnecessary bucking and/or jerking operation as the door
4 complete turns.	is being opened or closed from the fully open position.
Figure 5
Inner Trolley
Outer Trolley
Door Arm
Connector Hole
Door Arm
Emergency Release Handle
Closed
Door
Inner Trolley
		Outer Trolley
Correct Angle	Door Arm
Correct Angle
		Door with
Open Door		Backward Slant (Incorrect)