1 Ram,4Cylinder and Torque Motor. 1.jpg 1.oil tank. 2.motor. 3.rudder angle transmitter. 4.tiller. 5.feed back units. 6.hydraulic cylinder. 7.ram. 8.valve block. 9.pump. 2.jpg 1.steering gear. 2.steering gear foundation. 3.rudder carrier bearer. 4.rudder stock. 5.rudder.