Piping 1. 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. Not allowing chips of the piping thread or the seal material to go in. The minimum bending radius assumes static piping. If the tube is used in a moving part, provide extra length to the tube. Check the bending radius recommended by the flexible protection tube manufacturer for sure if the tube is used in the flexible protection tube. Series TUZ Specific Product Precautions Be sure to read before handling. Refer to front matter 56 for Safety Instructions, pages 13 to 16 for Fittings and Tubing Precautions. Selection Warning 1. Confirm the specifications. Products represented in this catalog are designed only for use with compressed air system applications (including vacuum). Do not use at pressure or temperature beyond the range of specifications, as this can cause damage or malfunction. (Refer to the specifications.) 2. In case of using the product for medical care This product is designed for use with compressed air system applications for medical care purposes. Do not use in transfer applications to a human living body, or in contact with human bodily fluids, body tissues. Mounting Caution 1. Confirm model number, size, etc. before installing. Check if there is damage, gouge, crack, etc. on the tube. 2. When the tube is connected, consider factors such as changes in the tubing length due to pressure, and allow sufficient leeway. 3. Do not apply unnecessary forces such as twisting, pulling, moment loads, etc. on fittings and tube. This will cause damage to fittings or flattening, bursting or disconnection of tube, etc. 4. Mount so that tube is not damaged due to tangling. This will cause flattening, bursting or disconnection of tube, etc. Caution 1. Do not use in locations where the connecting threads and tube connection will slide or rotate. The connecting threads and tube connection will come apart under these conditions. Use rotary type one-touch fittings (KS, KX series) in cases where sliding or rotation will occur. 2. Use the tube at or above the minimum bending radius. Using below the minimum bending radius can cause breakage or flattening of the tube. 3. Never use the tube for anything flammable, explosive or toxic such as gas, fuel gas, or cooling mediums, etc. Because the contents may penetrate outward. 4. Use the suitable fittings for the tube size. Caution Air Supply Warning 1. Types of fluid This product is designed for use with compressed air. 2. In case of excessive condensation Excessive condensation in compressed air may cause malfunction of pneumatic devices. Installation of an air dryer, water separator before filter is recommended. 3. Drain flushing If condensation in the drain bowl of an air filter is not emptied on a regular basis, the condensation will enter the outlet side, causing malfunction of pneumatic devices. If the drain flushing is difficult, installation of a filter with an auto drain option is recommended. For compressed air quality, refer to SMC’s “Air Preparation Equipment Model Selection Guide.” Operating Environment Warning 1. Do not use in locations having an explosive atmosphere. 2. Do not operate in locations where vibration or impact occurs. 3. In locations near heat sources, block off radiated heat. Maintenance Caution 1. Perform periodic inspections to check the following problems and replace the tube, if necessary. a) Cracks, gouges, wearing, corrosion b) Air leakage c) Twists or crushing of tube d) Hardening, deterioration, softening of tube 2. Do not repair or patch the replaced tube or fittings for reuse. 420