of the command that consists of five operations which are the substitution of the sealing element 24 for 32 the insertion of a sealing element 16 the substitution of the piston 25 for the mechanical control piston 31 the substitution of the cover of the pneumatic command 28 for the cover of the mechanical command 30 the substitution of the shaft o ring 26 and the screw 27 for the mechanical shaft control of extension 29 the admission of the system of hydraulic pump with integrated distributor valve 42 is made by the connection 36 the exit to the oil deposit 39 is made by the connection 37 the exit to the cylinder 40 is made by the connection 38 the element 39 is the oil deposit necessary for the functioning of the whole hydraulic system the element 40 is the cylinder of the system which is set in motion by the oil coming from the system of the hydraulic pump with integrated distributor valve 42 the pneumatic control 41 is used to set in motion the valve of the hydraulic pump system with integrated distributor valve 42 the hydraulic pump system with integrated distributor valve 42 is connected to the power take off 43 in order to get the rotation movement in this hydraulic pump system with integrated distributor valve 42 composed essentially of two parts it is allowed the use of compensation plates 8 of.