The motor moves a disk drive pusher in a first direction to rotate the sensor pack, and then moves the disk drive pusher in a second direction to eject {HEAD ~ a sensor} from {TAIL ~ the sensor cavity} and through the sensor opening 
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The motor moves a disk drive pusher in a first direction to rotate the sensor pack , and then moves the disk drive pusher in a second direction to eject { HEAD ~ a sensor } from { TAIL ~ the sensor cavity } and through the sensor opening
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH