A method of reeving a crane hook block

摘要

A method of reeving a hook block (100) is described. The hook block (100) includes a first sheave housing (102) containing a plurality of sheaves (104) and having extended portions (103) each with a hole therethrough and a housing frame (107) at a bottom thereof and including a locking surface. A first cross beam (118) has multiple brackets (119) each with a hole therethrough, at least one of the brackets having a plurality of surfaces corresponding to a plurality of angles of relative position between the first sheave housing (102) and the first cross beam (118), wherein the plurality of surfaces corresponds to the locking surface and form a gap therebetween at each of the plurality of angles. A first shaft (121) is rotatably captured within the holes of the extended portions of the housing (102) and of the multiples brackets (119) of the first cross beam (118). A locking bar (125) is sized to be placed in the gap between the locking surface and any of the plurality of surfaces. In place, the locking bar (125) substantially immobilizes movement of the first sheave housing (102) relative to the first cross beam (118). The method comprises laying a lower portion of a hook block (100) on the ground, the lower portion being connected to the cross beam. The first sheave housing (102) is angled to one of the plurality of angles of relative position. The locking bar (125) is inserted between the locking surface and the surface of the at least one bracket corresponding to the angled relative position. A wire rope of the crane is reeved through the plurality of sheaves (104) of the sheave housing (102).