Patent ID: 8490848

Claim:
A device configured to perform breaking separation of at least one bearing cap from a corresponding thrust block in a bearing assembly of an engine case provided with bearing bores arranged in-line, comprising: an extension mandrel insertable into at least one of said bearing bores and said extension mandrel has two half-mandrels; an expander for moving said half-mandrels apart, said expander taking effect between said half-mandrels; at least two gripping means, each gripping means including one or more protruding engagement members, a protruding engagement member of the one or more protruding engagement members being configured to grip at a respective recess of one half-mandrel corresponding to said at least one bearing cap, while the other half-mandrel is moveable with respect to the gripping means, the recess having a horizontal surface on which a surface of the engagement member engages so as to exert a force in the direction of breaking separation away from the thrust block on said half-mandrel corresponding to said at least one bearing cap, wherein the horizontal surface is configured to match the surface of the engagement member and wherein the horizontal surface and the surface of the engagement member are not curved as the surface of the mandrel; one or more detents extending parallel to and provided between a pair of the at least two gripping mean; and a fixing means connected to said at least two gripping means and the one or more detents, wherein the at least two gripping means and the one or more detents protrude from the fixing means; wherein the one or more detents contact the at least one bearing cap in a protracted position such as to apply a force to the at least one bearing cap to clamp said at least one bearing cap between said corresponding half-mandrel and said fixing means, such that a unit comprising said corresponding half-mandrel, said gripping means, said fixing means and said clamped bearing cap is supported in a freely movable manner to a limited degree, though secured against rotation, in the direction of breaking separation.