Esteem GL Wagon L4-1.8L (1999)
When Steering Wheel Held at Straight Position
When the steering wheel is not turned, the valve is held at the neutral position by the torsion bar and the fluid from the pump flow through the valve
back to the tank.
When Steering Wheel Turned (to the right)
Turning the steering wheel clockwise will cause the stub shaft to turn clockwise, twisting the torsion bar.
Then the valve is switched to allow the fluid pressure to be applied to the cylinder which then pushes the rack.
As the rack moves, the pinion turns clockwise to actuate the torsion bar which then causes the valve to return to the neutral position. This is called the
feed back operation of the power steering system.