Patent ID: 7591336

Claim:
A disengagement assembly that operates with an actuating arm and a return spring of a retractable pin assembly of a tandem wherein the actuating arm connects with the return spring and reciprocates between an engaged position and a disengaged position by force applied by the disengagement assembly such that the disengagement assembly maintains an applied force on the actuating arm in the disengaged position so that the tandem remains in a movable relationship with respect to frame members of a trailer, the disengagement assembly comprising: a pull member connected with the actuating arm of the retractable pin assembly; a bias member connected to the pull member; a plate member attached to an outside wall of one of the frame members of the trailer, the plate member having a first opening that is aligned with an opening of the outside wall; and a linkage member having a first end, a second end, and flexible segmented portions disposed therebetween, the first end being operatively connected to the bias member and the second end being adjustably connected to the first opening of the plate member via one of the flexible segmented portions adjustably connected with the first opening wherein adjustable connections of the bias member and the second end of the linkage member maintains the force applied to the actuating arm in the disengaged position.