SMC Networks DAS Operation Manual page 8

Mounting
Caution
(3) Do not apply excessive shocks (100 m/s
more) to the product by dropping it or hitting
it against another object during handling.
Even if the body appears undamaged, the internal
components may be damaged, leading to a
malfunction.
(4) For mounting the fitting to the adapter
(M5 size thread mounting)
①Tightening method
First, tighten it by hand, then give it an additional
1/6 turn to 1/4 turn with a hexagon wrench. Refer
to Table below for reference.
Connection thread
size
M5
Note) Excessive tightening may damage the
thread portion or deform the gasket and cause
air leakage. If the screw is not tightly screwed in
at the torque stated, it may come loose or air
may leak.
piping
Caution
(1) Refer to the Fittings & Tubing Precautions
for handing One-touch fittings.
(2) Preparation before piping
Before piping is connected, it should be
thoroughly blown out with air (flushing) or
washed to remove chips, cutting oil and other
debris from inside the pipe.
2
Proper tightening
torque 【N・m】
1～1.5
Precautions for One-Touch Tube
Mounting/Piping
or
Caution
(1) Connection and disconnection of tube from
one-touch fitting
① Installation of tube
1) Cut the tube perpendicularly, being careful not
to damage the external surface. Use an SMC
tube cutter TK-series. Do not cut the tubing with
pliers, nippers, scissors, etc., otherwise the
tubing will be deformed and problems may
result.
2) The outside diameter of the polyurethane
tubing swells when internal pressure is applied
to it. Therefore, it may be impossible to re-
insert the tubing into One-touch fittings. Check
the tubing outside diameter, and when the
accuracy of the outside diameter is +0.07mm or
larger for φ2, and +0.15mm or larger for other
sizes, re-insert it into the One-touch fitting
without cutting the tube. When the tubing is re-
inserted into the One-touch fitting, confirm that
the tubing goes through the release button
smoothly.
3) Grasp the tubing, and slowly push it straight (0
to 5°) into the One-touch fitting until it comes to
a stop.
4) Pull the tubing back gently to make sure it has
a positive seal.
cause air to leak or the tubing to release.
As a guide for checking if the tubing is pulled out
or not, refer to the following table.
② Removal of the tube
1) Push the release button flange evenly and
sufficiently to release the tube. Do not push
in the tubing before pressing the release
button.
2) Pull out the tubing while keeping the release
button depressed. If the release button is not
held down sufficiently, the tubing cannot be
withdrawn.
3) To reuse the tubing, remove the previously
lodged portion of the tubing. If the lodged
portion is left on without being removed, it
may result in air leakage and make the
removal of the tubing difficult.
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Doc.no.DOC1018150
Fittings
Insufficient installation may