When {HEAD ~ no torque} is applied to the steering shaft, {TAIL ~ the internal valve element} 12 assumes the neutral position shown in FIG 2 
When { HEAD ~ no torque } is applied to the steering shaft , { TAIL ~ the internal valve element } 12 assumes the neutral position shown in FIG 2
OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH