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3-2. Connection of Air Tube
(1) Connect the attached tube between the joint E of air pressure control unit (see the lower fig.) and
the compressor.
(2) Turn the residual pressure exhaust valve lever to right.
Compressed air is fed from IN to OUT and supplied to the air
cylinder through a solenoid valve. Be careful because this
operation starts synchronously all units driven via the air
cylinder. By the way, the residual pressure exhaust valve is
installed for the safety at the inspection or repair and it
releases compressed air from the pipe and prevents
unexpected operation of air cylinder. If the residual pressure
exhaust valve lever is turned to this side (position indicated
with broken line in the right fig.), valve at IN side closes and,
synchronously with the compressed air supply interruption,
compressed air in the air cylinder is reversed from OUT to
EXH and released to the atmosphere.
(3) Set the air pressure of main circuit at 0.4 MPa with the filter regulator A. Set the pressure to the
slider air circuit at 0.2±0.05 MPa with the regulator B.
[Notice] Since the pressure of slider air circuit (regulator B) is related to the stitching tension, do not
adjust it below 0.15 MPa or beyond 0.25 MPa.
(4) Confirm that the operating pressure of pressure switch is set at 0.3 MPa. If it is not correct, turn the
operating pressure adjust screw with a flat head screwdriver and set the needle at 0.3 MPa. This
value is the pressure drop detecting pressure.
Pressure switch
Joint E
Accessory tube
Regulator B
Residual pressure release valve
Filter・regulator A
- 4 -
Exhaust position
IN
OUT
EXH
Pressure switch
Operating presser
adjust screw
Indicator 0.3 MPa
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