SMC Networks AW20 Series Operational Manual page 26

9-4. Manual drain discharge from the auto drain
-
Pressurize the inside of the filter regulator when discharging drain. Drain will not be discharged properly if not
pressurized.
-
To discharge the auto drain manually, follow the procedure below. After discharging the drain, rotate the cock
to the opposite direction by hand to close the drain valve. Use of a tool can damage the product.
AW20-D: Auto drain
Drain cock
OPEN
(Discharging drain)
AW30-D/ AW40-D/ AW60-D: Auto drain
Drain cock
-25-
OPEN
(Discharging drain)