Patent ID: 8898899

Claim:
A method for encapsulating fluid in a shock absorber, comprising: temporarily securing a position of a seal unit by fitting the seal unit into an upper opening of a tube of the shock absorber to seal the upper opening, with the seal unit clamped by a supporter of a piston rod of the shock absorber and a position securing mechanism disposed outside the shock absorber; and filling the tube with a working oil, wherein the seal unit is composed of a rod guide and an oil seal separate from each other, the position securing mechanism temporarily secures a position of the seal unit in cooperation with the supporter, with the piston rod pulled upwards, both the rod guide and the oil seal are vertically clamped together by the supporter and the position securing mechanism so that the rod guide and the oil seal are interposed, and during vertically clamping both the rod guide and the oil seal, the supporter comes into contact with a lower surface of the rod guide to press the rod guide upwardly and the position securing mechanism comes into contact with an upper surface of the oil seal to press the oil seal downwardly.