Connecting the Air Supply
When the compressed air supply is connected to the inlet, the direction of rotation will be as shown in the figure below.
![](../../../assets/img/ac-note-icon-2.png)
Atlas Copco recommend to use the supplied fitting, Atlas Copco 4175 0738 00, and a Ø16 mm hose, Atlas Copco RUBAIR 16 or similar, to feed the motor with air. A smaller hose or fitting will restrict the airflow to the motor and cause a loss in performance.
If the exhaust air is to be piped away, a hose should be connected to the exhaust outlet.
![](../../../media/22/10645205643__Web.png)