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Caution 1. Air consumption is 0.1L/min. (ANR) or less under standard operation specifications. Please consult with SMC if this value is not allowable. Design/Selection Warning 1. Attach a safety device if damage or malfunction of equipment and devices on the outlet side may result from the output pressure exceeding the set pressure. 2. Residual pressure release (outlet pressure release) is not complete by releasing the inlet pressure. To release residual pressure, select a model with a back flow mechanism. Using a model without a back flow mechanism causes unstable residual pressure release (i.e., residual pressure may or may not be released) depending upon the operating conditions. 3. Please contact SMC if air will not be consumed in the system for long periods of time, or if the outlet side will be used with a sealed circuit and a balanced circuit, since this may cause the set pressure of the outlet side to fluctuate. 4. Set the outlet pressure range for the regulator in a range that is 85% or less of the inlet pressure. If set above 85%, the inlet pressure will be easily effected by fluctuations in the flow rate and inlet pressure, and will become unstable. 5. Since a safety margin is calculated into the maximum regulating pressure value of set pressure range appearing in the catalog’s specification table, the set pressure may exceed the range. 6. Please contact SMC when a circuit requires the use of a regulator having relief sensitivity with high precision and setting accuracy. Regulator/Filter Regulator Mounting Caution 1. When adjusting the pressure, unlock the knob first, and lock it back after the pressure is set. Warning 1. Set the regulator while verifying the displayed values of the inlet and outlet pressure gauges. Turning the knob excessively can cause damage to the internal parts. 2. Do not use a tool on the pressure regulator knob as this can cause damage. It must be operated by hand. Adjustment Caution 1. Check the inlet pressure before setting. 2. The pressure gauge included with products for 0.02 to 0.2 MPa setting is for up to 0.2 MPa only. Do not apply pressure exceeding 0.2 MPa. It can damage the pressure gauge. 3. To set the pressure using the knob, turn the knob in the direction that increases pressure and lock the knob after the pressure is set. If this is done in the direction that decreases pressure, the pressure may drop from the original set pressure. Turning the knob clockwise increases the outlet pressure, and turning it counterclockwise reduces the pressure. Warning 1. Use class 1 turbine oil (without additives) ISO VG32. Using other lubricant can cause damage to devices and result in malfunction. 2. For the AL10, 20 type, supply the lubricant after releasing the inlet pressure since the lubricant cannot be applied under pressurized condition. Caution 1. Check the usage rate once a day. If the lubricant is not normally consumed, problems may occur to the lubricated objects. Maintenance Design/Selection Warning 1. Select a lubricator with a fixed throttle when the lubricator is used in high frequency operations, such as in a press machine. When selecting a model, it is necessary to select the passage area of the fixed throttle, so please consult with SMC. 2. Lubrication cannot be properly performed if the operating flow rate is too low. Select proper size lubricator by referring the minimum dripping flow rate provided in this catalog. 3. Mount a residual pressure removal 3-port valve on the inlet side, and avoid the use of a lubricator that causes back flow as this may cause damage to internal parts. 4. Use a check valve (Series AKM) to prevent the back flowing of lubricant when the piping is branched at the inlet side. Lubricator Piping Caution 1. Avoid riser piping and branch lines on the outlet side to prevent inferior lubrication. Adjustment Regulator/Filter Regulator F.R.L. Units Precautions 4 Be sure to read this before handling. 42