A hydraulic circuit includes a control valve, a first hydraulic actuator, anda secondhydraulic. The hydraulic circuit is configured such that in a first step, thefirst hydraulicactuator opens a product barrier in response to movement of the control valveinto a firstposition, in a second step, the second hydraulic actuator moves a productengagementmember in a first direction and the first hydraulic actuator closes theproduct barrier inresponse to movement of the control valve into a second position, in a thirdstep, the firsthydraulic actuator opens the product barrier in response to movement of thecontrol valveinto the first position, and in a fourth step, the second hydraulic actuatormoves the productengagement member in a second direction and the first hydraulic actuatorcloses the productbarrier in response to movement of the control valve into the second position.
