| Abstract |
A method of tightening and loosening an object(5) to a rotary base(6)torison -free,comprises: providing a single power tool(1)having a tool housing portion(2) and a driving portion (3)coaxial with one another and providing equal but opposite forces;connecting a bolt(7)with the rotary base;connecting a first part to one of said tool housing and driving portions to be turned by said one portion, which first part includes a sleeve(8)with a thread co-operating with a thread of the bolt and washer(9)abutting against the object;connecting a second part to the other of said tool housing and driving portions to be turned by said other portion, which second part includes a nut(10)having thread co-opearating with another thread of the first part; turning the first part by said one portion so that the first part,the bolt anfd the rotary base turn together while the second partremains stationery to urge the bolt to move in a desired axial direction to tighten or loosen the object to the rotary base,the bolt and the first part remains stationery to urge the bolt in the desired axial direction to tighten or loosen the object to the rotary base. |