diameter to allow for the winding and unwinding action of the spring 74 as best seen in fig2 a the disengagement sleeve 72 has an extension tab 76 with a blunt or squared face 78 that extends inward from the inside diameter of the sleeve 72 to meet and oppose the squared inner end 71 of the spring 74 along the inner most end of the center hub 44 the disengagement sleeve 72 also has a plurality of release notches 77 defined on its outer diameter a torque interruption assembly generally shown at 90 is secured to a stationary portion of the vehicle by its base plate 96 and includes a solenoid 94 and a disengagement arm 92 that is operatively connected to the solenoid 94 when the solenoid 94 is activated the disengagement arm 92 operatively engages one of the plurality of the release notches 77 of the disengagement sleeve 72 during the normally engaged mode of operation the engine power take off 32 turns and the rotation of attached center hub 44 tightens the spring 74 causing a transfer of torque from the center hub 44 to the intermediate race 46 thereby driving the fead pulley 40 and the vehicle 39 s accessories as such the spring 74 is constantly rotating along with the center hub 44 and intermediate race 46 the disengagement sleeve 72 also rotates with the spring 74 by virtue of having the face 78 of its inwardly directed extension tab 76 engaged on the end 71 of the spring 74 when it is.