the crimping operation has been completed piston 45 typically needs to be fully retracted in order to remove the crimped hose assembly die segment assembly 80 die separator 67 or die bowl 72 a full retraction is needed since the available space inside central opening as shown in fig2 is limited and die pusher 50 must be fully displaced from die ring 75 in order to remove the above mentioned componentry when retracting piston 45 attached die pusher 50 loses contact with the upper annular surface of die ring 75 this allows die segment assembly 80 to open up diametrically thus providing room for the crimped hose and fitting assembly to be removed retraction of piston 45 is achieved by actuating pressure relief knob 64 thus relieving pressure from hydraulic pump 60 since piston 45 is spring loaded it retracts within hydraulic cylinder 40 proportionally to the amount of pressure being relieved from hydraulic pump 60 a full retraction of piston 45 which may take a significant amount of time especially during multiple crimping operations can be avoided with the present invention since die pusher 50 is removable from piston 45 only a slight retraction of piston 45 is needed in order to remove the above mentioned componentry instead of a full retraction piston 45 can be slightly retracted to the location where die pusher 50 is no longer in immediate contact with die ring 75 at this location die pusher 50 can.