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Operation Disassembly/Replacement Series CA2 Specific Product Precautions Be sure to read before handling. Refer to front matter 57 for Safety Instructions and pages 3 to 12 for Actuator and Auto Switch Precautions. 1. Do not use a pneumatic type as an air-hydro cylinder. It can cause oil leakage. 2. Do not rotate the piston rod when the rod boot is fixed. Before rotating the piston rod, loosen the band to avoid twisting the rod boot. 3. Install the rod boot with the breathing hole facing downwards or in a direction suitable to prevent dust, moisture etc. from entering easily into the rod boot. 1. Do not open the cushion valve beyond the stopper. A snap ring is installed as a cushion valve retention mechanism. Do not open the cushion valve beyond it. If not operated in accordance with the above precautions, the cushion valve may be ejected from the cover when air pressure is supplied. 2. Use the air cushion at the end of cylinder stroke. Otherwise, the tie-rod or piston rod assembly will be damaged. Caution Caution Bore size (mm) 40, 50 63, 80, 100 Width across flats Hexagon wrench JIS 4648 Hexagon wrench key 2.5 JIS 4648 Hexagon wrench key 4 2.5 4 1. Use a socket wrench when the bracket is replaced. If other tools are used, the nut or other parts may be deformed or the work efficiency may decrease. For applicable sockets, please refer to the table below. 2. Do not replace the bushing. Since the bushing is press fitted, the entire cover assembly instead of a single part needs be replaced. 3. When a seal is replaced, apply grease to the new seal before it is assembled. Operation of the cylinder without greasing will result in extreme abrasion of the seal, causing premature air leakage. Caution 40, 50 63 80, 100 Nut 13 17 19 JIS B4636 + Two-angle socket 13 JIS B4636 + Two-angle socket 17 JIS B4636 + Two-angle socket 19 DA00040 (M8 x 1.25, Hexagon nut 3 types) DA00010 (M10 x 1.25, Hexagon nut 3 types) DA00131 (M12 x 1.75, Hexagon nut 3 types) Bore size (mm) Width across flats Socket Disassembly/Replacement Caution Auto Switch Mounting Band Selection Series CA2 air cylinders with improved water tight are also available. Because they provide better coolant resistance than the standard cylinders, they are ideal for use in a machine tool environment exposed to coolant. They are also well suited for use in areas in which water splashes, such as food processing equipment or car washers. Please contact SMC for more information. Water Resistant Air Cylinders 1. Series CDA2 cylinders vary in their bore sizes because of difference in the thickness of their tube walls among different models. The part number of the auto switch mounting band thus varies depending on the cylinder type. When an auto switch mounting band is ordered alone, please confirm the cylinder type and refer to the table below.