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ToosAAHHRHNNYNHHHNH (Only for the 35 MPa type)YNHNAH (Except for the 35 MPa type)※1 For models not listed above, use a commercially available wrench.※2 For super high flow type accumulators, use a commercially available wrench.※3 The shape of Ring Nut may differ depending on the manufacture date. Hexagonal Ring Nut cannot be used with Ring Nut Wrench listed above. l Eye NutEye NutCap WrenchCap Wrench98Cap WrenchRing Nut WrenchSpring Nut KeyAcc. Gas Volume: L20 – 6020 – 6080, 120150, 160, 17560Y40, Y60, 80, 120 160 (Except for the 35 MPa type)20 – 6080, 12016060SeriesAccumulator Shell Diameter: mm190.7, 216.3190.7190.7, 216.3190.7244.5244.5267.4, 298.5355.6355.6298.5267.4, 298.5355.6355.6355.6406.4355.6406.4406.4406.4406.4406.4Top Cap TypeOne Piece TypeTwo Pieces TypeAccumulator Nominal Gas Volume: L5 – 165 – 165 – 165 – 1620 – 6320 – 6320 – 6080, 1206020 – 6020 – 60Y60, 80, 120Y40, Y60, 80, 12080, 12014560160160160150150, 160, 175PictureItem NumberThe size differs depending on the item number.※1 For models not listed above, use a commercially available wrench. ※2 For stainless steel accumulators, use a commercially available wrench. PictureItem NumberThe size differs depending on the item number.When ordering the Ring Nut for the accumulator currently used, please confirm the shape of Ring Nut.PictureItem NumberSeriesNHNNYHHNNNY6TWH816TWH1006TWH63Accumulator Shell MaterialCarbon SteelStainless SteelCarbon SteelStainless SteelStainless SteelStainless SteelCarbon SteelStainless SteelStainless SteelStainless SteelCarbon SteelStainless SteelCarbon steelCarbon SteelCarbon SteelCarbon SteelStainless SteelStainless SteelCarbon SteelCarbon SteelCarbon Steel6TWD0756TWD0856TWD1056TWD1206TWD140※4 Spring Nut Key (6TWH04) cannot be used for the accumulator manufactured before January, 1992. Outer hexagon size of the spring nut before January, 1992 is 10 mm.6TWH04Top Cap One Piece TypeTop Cap Two Pieces TypeCap Wrench & Hoisting Attachment in PlaceT o o l sDisassembling/assembling NACOL's accumulators requires using special wrenches.Three types of special wrenches are available for different purposes.This wrench is used to disassemble/assemble the top cap.For information about how to use it, please refer to the instruction manual. Use the hoisting attachment supplied with the product to prevent the top cap from coming off.This wrench is used to disassemble/assemble the oil port valve assembly. For information about how to use it, please refer to the instruction manual.Spring Nut key is used for replacement of the Dynac Valve parts. For information about how to use it, please refer to the catalogue P.107 and instruction manual.Wrench