Being volt/bolt tension grant manner and the device null volt/bolt tension grant manner which makes

摘要

Spacers extend in the axial direction (51, 53), along with being insertable between the surface components (20) and a nut with a bolt tension is applied to (19) above (C), of (F), and a (52) inclined surface that occupies the space tension as it is granted bolt (19) and (25) hydraulic tensioner, Puraba (35) is engaged extension nut (120) and (121) . Split collar (60), in order to enable rapid engagement / release of the end-to-end is Puraba nuts (35) to (120) on the bolt (19), a segment movable in radial direction (61 I have).