A wheel assembly for a vehicle such as a tractor is disclosed. First, light is coupled into a second end of the optical fiber such that an optical reference beam is output from the first end of the optical fiber. The hammer may include a retractable hammer bent for engagement with the electrical solid-state full auto sear, and the electrical solid-state full auto sear may include a piezoelectric device. This analysis comprises a synchronization test executed successively on subsets of timeslots within the frames until good synchronization is observed. Hubs that connect the hood sections together and mount the hood to the base also define passages for the animal in and out of habitat and provide access to other habitat components. The server further sets up a disconnect state in the at least one storage device to be reconnected for transfer to a non-server interface.