How do I manually position a Siemens OpenAir GCA actuator?

[StOlivia]

To manually adjust the position of your Siemens OpenAir GCA131.1U Spring Return Rotary Electronic Damper Actuator, follow these steps: For manual override:

1. Insert the 3 mm hex key into the override opening.
2. Turn the key in the direction of the arrow to the desired opening degree.
3. Hold the key in place.
4. Insert a small flat-blade screwdriver into the gear train lock pin and turn it in the arrow direction until you hear a click or feel resistance.
5. Remove the key or keep it in place. To release manual override or preload:
6. Insert the 3 mm hex key into the override opening.
7. Turn the key slightly in the arrow direction.
8. Remove the key; the actuator will return to the 0 (fail-safe) position. Mechanical Range Adjustment: Ensure the actuator is in the 0 (fail-safe) position before adjustment. If adjusting before service, consider the factory-set 5° preload. Release preload by following the 'To Release Manual Override or Preload' steps. For auxiliary switch and span/offset adjustments, consult the manual's Technical Instructions. Always refer to the Siemens OpenAir manual for comprehensive instructions and safety guidelines.