The driving motor 44 is connected to a power supply 81 and to {TAIL ~ a switch} 82 which has {HEAD ~ an actuating button} 83 
The driving motor 44 is connected to a power supply 81 and to { TAIL ~ a switch } 82 which has { HEAD ~ an actuating button } 83
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH