A turf aerator includes a frame, a tine crank having a clearing end with threads, a plurality of tines coupled to the tine crank, and a coupling for fastening the tine crank clearing end to the frame. The coupling includes a collar area for receiving the tine crank clearing end, an anchor plate for selectively fastening to the frame, and an opening sized for accessing the threads of the tine crank clearing end. The turf aerator further includes an actuator threaded complementary to the threads of the tine crank clearing end for selectively moving the coupling from an extended position relative to the tine crank to a retracted position relative to the tine crank.
