Patent ID: 7448697

Claim:
A braking device for a tractor, comprising: a first hydraulic circuit for activating at least a rear left brake; a second hydraulic circuit for activating at least a rear right brake; and a compensating device located between the first hydraulic circuit and the second hydraulic circuit to equalize hydraulic pressures in the first and second hydraulic circuits; wherein the first hydraulic circuit comprises a main hydraulic line and a secondary hydraulic line, and the second hydraulic circuit comprises a main hydraulic line and a secondary hydraulic line; opening and closing of each of the secondary hydraulic lines being controlled by a respective solenoid valve; and the secondary hydraulic line of the first hydraulic circuit passes through the compensating device and through the respective solenoid valve, and the secondary hydraulic line of the second hydraulic circuit passes through the compensating device and through the respective solenoid valve, wherein the solenoid valves are activated respectively by a first brake pedal and a second brake pedal via an electric actuating device; and wherein simultaneous actuation of both hydraulic circuits activates at least a front brake.