HYDRAULIC WRENCH WITH MANUAL ACTUATION FOR HIGH-TORQUE TIGHTENING AND LOOSENING

摘要

A hydraulic wrench for high-torque tightening/loosening which has two separate functions. The first function provides a manual wrench for performing tightening/loosening approximations; through the blocking (83) of the bearing wrench (90) regarding the piston (42, 43); the whole set becoming rigid as it was one single body; the second function consists of the hydraulic wrench tool performing high-torque tightening and loosening.