Patent ID: 6385846
Filing Date: 2002-05-14
Classification: B25B,F16J,Y10T

Abstract:
A method for removing an oil seal in an axial direction of a crankshaft (5), comprising:forming symmetrical tip end portions, which are tapered toward a tip end of an over-half front portion in a longitudinal direction of an elongated plate member; providing an L-shaped jaw (2) with side surfaces formed into arcuate portions (2a and 2aâ€²); forming a retainer plate (1) provided with holes (3) passing through its surface in its width direction at an over-half rear portion in the longitudinal direction of said elongated plate member; and spreading a hard sheet (15) over an outer circumferential surface of the crankshaft (5) and the jaw (2) to thereby remove an oil seal body (6), wherein: said method further comprises the steps of: raising said retainer plate (1) vertically to an axis of the crankshaft (5) with its jaw (2) downwardly to press-insert a tip end of the L-shaped jaw (2) positioned at its tip end into a contact interface horizontally between the oil seal body (6) and the crankshaft (5); tilting the retainer plate (1) to a position in parallel with the axis of the crankshaft (5) to raise the jaw (2); inserting a tip end (4â€²) of a lever (4) into the hole (3) on the retainer plate (1) to retain it to an end face (5c) of a pulley shaft (5a); and removing the oil seal body (6) in an axial direction of the crankshaft (5), while retaining the jaw (2) to an inner end face of an iron core (10) on the oil seal body (6).