Speed and Cushion Adjustment Warning 1. To make a speed adjustment, gradually adjust starting from the low speed end. If the speed adjustment is performed from the high speed end, it could damage the product. As a result, it could pose a hazard to humans and damage the machinery and equipment. 2. The cushion needle is not adjusted at the time of shipment. Therefore, an adjustment must be made in accordance with the operating speed and the moment of inertia of the load. The absorption of kinetic energy by the bumper is regulated by the adjustment of the needle. An improper adjustment could lead to damage of the equipment and the product. As a result, it could pose a hazard to humans and damage the machinery and equipment. 3. Do not operate with the cushion needle in a fully closed condition. This could tear the seal, which could pose a hazard to humans and damage the machinery and equipment. 4. Do not apply an excessive force to loosen the cushion needle. The needle itself is provided with a pull stop. However, the pullstop could be damaged if the needle is loosened through the application of excessive force. As a result, it could pose a hazard to humans and damage the machinery and equipment. 5. For products with shock absorbers, when the shock absorber stops motion before reaching the stroke end using a stopper mechanism with the objective of shortening takt time, be sure the shock absorber is stopped in a position where it has adequately absorbed the kinetic energy. Failure to do so can result in damage to equipment. Air Supply Warning 1. Type of fluids Please consult with SMC when using the product in applications other than compressed air. 2. When there is a large amount of drainage. Compressed air containing a large amount of drainage can cause malfunction of pneumatic equipment. An air dryer or water separator should be installed upstream from filters. 3. Drain flushing If condensation in the drain bowl is not emptied on a regular basis, the bowl will overflow and allow the condensation to enter the compressed air lines. It causes malfunction of pneumatic equipment. If the drain bowl is difficult to check and remove, installation of a drain bowl with an auto drain option is recommended. For compressed air quality, refer to SMC Best Pneumatics No.5 catalog. 4. Use clean air. Do not use compressed air that contains chemicals, synthetic oils including organic solvents, salt or corrosive gases, etc., as it can cause damage or malfunction. Caution 1. When extremely dry air is used as the fluid, degradation of the lubrication properties inside the equipment may occur, resulting in reduced reliability (or reduced service life) of the equipment. Please consult with SMC. 2. Install an air filter. Install an air filter upstream near the valve. Select an air filter with a filtration size of 5 μm or smaller. 3. Take measures to ensure air quality, such as by installing an aftercooler, air dryer, or water separator. Compressed air that contains a large amount of drainage can cause malfunction of pneumatic equipment such as rotary actuators. Therefore, take appropriate measures to ensure air quality, such as by providing an aftercooler, air dryer, or water separator. 4. Ensure that the fluid and ambient temperature are within the specified range. If the fluid temperature is 5°C or less, the moisture in the circuit could freeze, causing damage to the seals and equipment malfunction. Therefore, take appropriate measures to prevent freezing. For compressed air quality, refer to SMC Best Pneumatics No.5 catalog. Rotary Actuators Precautions 4 Be sure to read this before handling. Lubrication Warning 1. This product should be used without lubrication. If it is lubricated, it could lead to sticking or slipping. 26