844 Hydraulics Course Notes — Page 69

The control box situated under the steering wheel, contains a distributor slide-valve (T.1 ) in its position of hydraulic equilibrium assures in chamber 1 the pressures necessary to the balance of the assisting piston. ‘ The control box is also made up of : . - a control shaft in liaison with the ( P.1), - an outlet shaft in liaison with the rack pinion ( P.3 ), - Two pinions ( P.4 and P.2 ) holder ( b ), >a security lock (2)