| 摘要 |
An improved automatic slack adjuster (10) for disc brakes is provided. The slack adjuster includes an elongated rod (16) threadably attached to a nut member (28), only one of which rod and nut member is rotatable relative to the housing (12) for slack adjustment purposes. A coil return spring (36) acts on spring seat washer (40) which bears on the nut member. The spring seat washer is rotationally fixed (42, 44) to the non-rotatable one of the rod and nut members to prevent wind-up of the coil return spring during a slack adjustment operation.
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