See also:

Airflow selection
Airflow selection ...

Removing air intake duct
Use a screwdriver to undo the clips on the air intake duct, then remove the air intake duct. Refer to “Type A clips” F11-5. ...

Forward and backward adjustment
Pull the lever upward and slide the seat to the desired position. Then release the lever and try to move the seat back and forth to make sure that it is securely locked into place. ...