Submittal Sheet

MANUAL OVERRIDE OPERATION

When necessary, the actuator’s output shaft can be repositioned using the manual override

mechanism (Figure-10) as follows:

1. Disconnect power from the actuator. Spring return models will fully return to their normal

position. Non-spring return models will remain in position.

2. Insert the crank in the product. Without pushing in on the crank, rotate the manual

override crank in the direction shown by the arrow on the product label until the actuator

rotates to the desired position. Push in until the mechanism locks in position. Non-spring

return models do not have the locking feature.

3. If you desire to reposition a spring return actuator manually from a locked position, turn

crank 1/8 turn counterclockwise and pull out to release. Adjust position as desired.

4. If you desire to reposition a non-spring return actuator manually, turn the crank in either

direction as needed until you reach the desired position.

Caution:

• Only use manual override when the actuator drive motor is not powered.

• Engaging the manual override when the actuator is powered will cause damage to the

gears.

• Using power tools to adjust the override will cause damage to the gears.

• Avoid manually repositioning the actuator beyond its adjustable travel limit setting.

Damper Mounting Mx4D-xxxx-xxx Schneider Electric DuraDrive Series Rotary Damper

Installation

Caution: Do not drill additional holes in the actuator body. Pre-drilled holes are located on

gear plate side to accept #8-32 thread-forming screws for mounting accessories.

Note: The Mx4D-xxxx-xxx rotary actuators mount on shafts up to 1/2” diameter. Two set

screws secure the actuator to the shaft.

Shaft Rotates

Clockwise

To Open

Shaft Rotates

Counterclockwise

To Open

This step determines

shaft rotation. Linkage

may change damper direction.

Min. 2-3/8" (60 mm)

Move the damper to its normal position. Verify the controller action is set to match the

damper application.

Spring return models can be mounted from top or bottom. When mounting from the

top, use AM-772 bracket. See Figure-12.

Normally closed damper: when damper is closed, actuator position indicator should

be at 0°. When damper is open, actuator position indicator should be at 90°.

Normally opened damper: when damper is open, actuator position indicator should

be at 0°. When damper is closed, actuator position indicator should be at 90°.

Figure-11 Rotary Damper Position.