Servo cylinder
The cylinder is part of the steering gear housing. The rack (1) is equipped with a piston (2) complete with seals. For the flow of power steering fluid to and from the control valve there are two connections on the servo cylinder, one on each side of the piston. When turning right, power steering fluid is pumped to the right-hand section of the servo cylinder.
Piston and rack are forced to the left and power steering fluid is discharged from the left-hand section of the servo cylinder. The rubber gaiter on the left hand side is distended at the same time as the one on the right-hand side is compressed.
Movement of the rack is transferred via the inner ball joints (3), track rod and outer track rod ends to the steering arms of the steering swivel member. Both the inner ball joints and the outer track rod ends are lubricated for life and self-adjusting, with no further lubrication or adjustment being necessary or possible.