A hydraulic circuit mechanically link to a tailgate of an agriculture harvester. The hydraulic circuit of the present invention can be used to facilitate the transition of hydraulic states from a quick speed to a slow speed, when opening and closing the tailgate. The hydraulic circuit comprises a restrictive orifice and a fluid stop valve that, when opened, diverts the path of pressurized fluid away from a hydraulic actuator during the actuators extension. The diversion of pressurized fluid away from the hydraulic cylinder or through the restrictive orifice substantially reduces the speed at which the panel opens or closes.
