SMC Networks JSXF Series Operation Manual page 7

6. If air leakage increases or the equipment does not operate properly, stop using it.
After installation and during maintenance, connect the compressed air and power and perform appropriate
functional and leakage inspections to make sure that the equipment is installed properly. Do not use the
equipment if it does not operate properly.
7. Do not touch valves with bare hands during or immediately after energization.
Valves will reach high temperatures after energization. Do not touch valves carelessly. You may get burned
if you failed to do so.
Caution
1. Installation of a regulator and restrictor
If a regulator or a restrictor is installed immediately before the valve inlet or immediately after the valve
outlet, the valve may oscillate (chatter), causing a failure. Install it away from the valve or change the
restriction.
2. Install a header tank with a sufficient capacity on the valve's inlet side.
Because this product is a high-flow valve, if the tank capacity is small, a valve open failure or valve
oscillation (chattering) may occur due to a pressure drop or insufficient air supply, causing a failure.
3. Painting and coating
Warnings or specifications printed or labeled on the product should not be erased, removed or covered.
4. Apply the correct tightening torque.
Tightening at a torque exceeding the tightening torque range may damage the mounting screws, enclosure,
and so on. Tightening at a torque less than the tightening torque range may cause a displacement of the
mounting position or the loosening of the screw sections.
5. If a commercially available switching power supply is used, be sure to ground the frame ground
(FG) terminal.
6. Precautions for Piping
Warning
1. Tubes may become unfixed and break loose while the product is used due to deterioration of the
tube or damage to the fitting.
To prevent the tube from breaking loose, install a protective cover or secure the tube.
Caution
1. Refer to the Fittings and Tubing Precautions in the SMC catalog for tubes for which the handling
one-touch fittings applies
2. Preparation before piping
Before piping is connected, flush thoroughly with air or wash to remove chips, cutting oil and other debris
from inside the pipe.
Connect piping in a way forces such as a tension, compression or bending will not be applied to the valve
body.
3. Wrapping of sealant tapes
When connecting pipes, fittings, etc.,
be sure that chips from the pipe threads
and sealing material do not enter the valve.
Furthermore, when pipe tape is used,
leave 1.5 to 2 thread ridges exposed at the end of the threads.
4. When using a fitting other than an SMC fitting
Follow the instructions given by the manufacturer of the fitting used.
5. Be aware that connecting the ground wire to piping may cause corrosion of the system due to
electrolytic corrosion.
6. When connecting piping to the product, pay attention not to make a mistake regarding the supply
port, etc.
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