3) Connect piping/fittings using the recommended torque while holding the female
thread side tightly. Insufficient tightening torque can cause loose piping or sealing
failure. Over tightening may break the screw. If the female side is not held while
tightening, excessive force will be applied to the bracket directly, causing breakage.
Recommended tightening torque
Unit: N
・
m
4) When a SMC one-touch fitting is used, refer to the operation manual for the one-
touch fitting.
5) Do not apply torsion or bending moment other than the weight of the product itself.
External piping needs to be supported separately. Hard piping like steel tube is
susceptible to excessive moment load or vibration. Insert the flexible tube to cancel
the influence.
6) Drain guide is not equipped with valve function. Be sure to connect piping for drain.
No piping for drain allows the drain and compressed air to exhaust freely.Also, the
piping should be performed with drain guide held by spanner to prevent breakage of
bowl. Otherwise, the bowl might be broken.
7) The piping for drain from auto drain should be connected under the following
requirements to avoid operating failure. Tube I.D. ø4 (ø3/16") or larger for AD37, ø
6.5 (ø1/4") or larger for AD38. Length: 5m (200 inch) or less.
8) Pipework for auto drain discharge which is higher than the auto drain outlet should
be avoided. It may cause the the auto drain operation to fail.
Air Supply
Connection thread
1/8
1/4
3/8
1/2
Torque
7 to 9
12 to 14
22 to 24
28 to 30
!
Warning
1) Use clean air. Compressed air containing chemicals, organic solvent, synthetic oil or
corrosive gas may lead to cause breakage of parts or malfunction.
2) Air containing too much moisture may deteriorate the performance. Install the
refrigerated air dryer or aftercooler before the product.
3) Make sure that the operating pressure is not below the minimum operating pressure.
If it is used at the minimum operating pressure or less, pressure resistance increase,
leading to the decrease of operation or operation failure.
!
Caution
1) Install the air filter AF series or line filter AFF series as a pre-filter to the inlet of the
product in order to avoid the clogging of early stage.
!
Warning
1) Release the pressure in the product to the atmosphere before replacing parts or
removing piping.
2) Maintenance and checks should be done by following the procedure in the operation
manual. Incorrect handling of the product may cause breakage or malfunction of the
equipment or device.
3) Do not touch the product when operating at high temperature (40 to 60
o
C). The
operators may get burnt. Be sure to confirm that the temperature of the container or
operating part is reduced to 40 degrees or less to prevent burns.
4) Perform periodical check to find cracks, flaws or other deterioration on resin bowl. If
any of them is seen, as malfunction is caused, replace with new bowl or metal bowl.
Investigate and/or review the operating conditions if necessary.
Maintenance
-6-
Connection thread
1/8
1/4
3/8
1/2
Torque
7 to 9
12 to 14
22 to 24
28 to 30
