!4 i u !6 y q t e o r !2 !5 !3 !0 !1 w Construction Rod section Be sure to read this before handling. Refer to the back cover for Safety Instructions. For Actuator and Auto Switch Precautions, refer to “Handling Precautions for SMC Products” and the Operation Manual on SMC website, http://www.smcworld.com Precautions Handling/Disassembly Caution 2. When replacing rod seals, please contact SMC. Air leakage may be happened, depending on the position in which a rod seal is fitted. Thus, please contact SMC when replacing them. 3. Not able to disassemble. Cover and cylinder tube are connected to each other by caulking method, thus making it impossible to disassemble. Therefore, internal parts of a cylinder other than rod seal are not replaceable. 4. Do not touch the cylinder during operation. Use caution when handling a cylinder, which is running at a high speed and a high frequency, because the surface of a cylinder tube could get so hot enough as to cause you get burned. 5. The oil stuck to the cylinder is grease. 6. The base oil of grease may seep out. 7. When using a rod end bracket, make sure it does not interfere with other brackets, workpieces and rod section, etc. Warning 1. Do not rotate the cover. If a cover is rotated when installing a cylinder or screwing a fitting into the port, it is likely to damage the junction part with cover. 2. In the case of exceeding the standard stroke length, implement an intermediate support. When using cylinder with longer stroke, implement an intermediate support for preventing the joint of rod cover and cylinder tube from being broken by vibration or external load. 1. Avoid using the air cylinder in such a way that rotational torque would be applied to the piston rod. If rotational torque is applied, the non-rotating guide will become deformed, thus affecting the non-rotating accuracy. Refer to the table below for the approximate values of the allowable range of rotational torque. To screw a bracket or a nut onto the threaded portion at the tip of the piston rod, make sure to retract the piston rod entirely, and place a wrench over the flat portion of the rod that protrudes. Tighten it by giving consideration to prevent the tightening torque from being applied to the non-rotating guide. Allowable rotational torque (N・m or less) o20 o25 o32 o40 0.2 0.25 0.25 0.44 * Since the seal does not include a grease pack, order it separately. Grease pack part number: GR-S-010 (10 g) Replacement Part: Seal Component Parts No. Description Material Note 1 Rod cover Aluminum alloy Anodized 2 Head cover Aluminum alloy Anodized 3 Cylinder tube Stainless steel 4 Piston Aluminum alloy 5 Piston rod Stainless steel 6 Non-rotating guide Bearing alloy 7 Seal retainer Carbon steel Nickel plating 8 Retaining ring Carbon steel Phosphate coating 9 Bumper Resin 10 Bumper Resin 11 Retaining ring Stainless steel 12 Piston seal NBR No. Description Material Note 13 Wear ring Resin 14 Rod end nut Carbon steel Zinc chromated 15 Magnet . CDM2RKl20 to 40-lZ 16 Rod seal NBR No. Description Material Part no. 20 25 32 40 16 Rod seal NBR CM2K20-PS CM2K25-PS CM2K32-PS CM2K40-PS 77 Series CM2RK