A hydraulic circuit includes a control valve, a first hydraulic actuator, and a second hydraulic. The hydraulic circuit is configured such that in a first step, the first hydraulic actuator opens a product barrier in response to movement of the control valve into a first position, in a second step, the second hydraulic actuator moves a product engagement member in a first direction and the first hydraulic actuator closes the product barrier in response to movement of the control valve into a second position, in a third step, the first hydraulic actuator opens the product barrier in response to movement of the control valve into the first position, and in a fourth step, the second hydraulic actuator moves the product engagement member in a second direction and the first hydraulic actuator closes the product barrier in response to movement of the control valve into the second position.