# 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.

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.