9. Specification for Option L
9- 2
9.3
Installation of heavy duty auto drain
1) Hold the hexagon-head part (width across flats: 32) at port Rc1/2 of the air dryer with spanner.
Then install nipple, ball valve (width across flats: 25).
Note 1) Put up the seal tape or the sealant to the nipple. Tightening torque: 28 to 30Nm
2) Hold the ball valve with the spanner. Then install a nipple and a heavy duty auto drain.
Install with “out port" down in a vertical position. Inclination from the vertical line should be less than 5°.
3) Install one-touch fitting (width across flats: 22) to drain port (width across flats: 27) and the drain tube.
9.4
Maintenance
1) As a preventive maintenance, press the flush button of the heavy-duty auto drain regularly to clean the
discharge valve (for flushing).
2) The pilot exhaust of the heavy-duty auto drain is at the position shown in the figure.
Do not close the
exhaust port.
Also, clean the exhaust port to prevent it from getting blocked by dust.
3) Close the ball valve before removing the heavy duty auto drain and open the bleed valve or push the
flushing button and confirm air pressure is released.
Nipple
Heavy duty auto drain
Ball valve
(Pilot exhaust port)
(Flush button)
(Bleed valve)
Flush button
Body
Bleed valve
Pilot exhaust port
open
close
