| 摘要 |
PROBLEM TO BE SOLVED: To provide a hydraulic clutch disengaging system which can keep a sealability even if an unbalanced load of a clutch operating member works on a piston. SOLUTION: In this hydraulic clutch disengaging system having a cylindrical piston 7 which is inserted changeably in the axial direction into the hydraulic chamber 12 from one end side, a seal ring having a lip contacted by an inner cylinder 5 and an outer cylinder 6 which are arranged in one end side of the piston 7 and constitute the hydraulic chamber 12 and a release bearing 9 which is fitted to the other end side of the piston 7 and is contacted by the operating member 3 of the clutch, the piston 7 is divided into a plurality of piston members 16, 17.
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