A hopper railroad car top hatch cover assembly for a hopper railroad car including a roof including an upwardly extending coaming , the hopper railroad car hatch cover assembly comprising: a hatch cover pivotally connectable on one side of the coaming and including a movable hatch pivotally movable from a closed position engaging the coaming to an open position disengaged from the coaming ; and a hatch cover securer movably connectable on an opposite side of the coaming and including a hatch cover engager movable from a hatch cover engagement position in which the hatch cover engager secures the movable hatch in the closed position engaging the coaming to a hatch cover non-engagement position in which the hatch cover engager allows the movable hatch to move to the open position, characterized in that the hatch cover securer includes: a plurality of engager supporting arms (1402, ... 1428), a plurality of elongated first hatch engagers (1432, ..., 1444) connected to and extending between respective engager supporting arms (1402, ... 1420), a hatch cover engager rotator configured to pivot the plurality of elongated first hatch engagers (1432, ..., 1444) from respective hatch cover engagement positions to hatch cover non-engagement positions, and a first and second actuator connected to the hatch cover engager rotator and configured to move the hatch cover engager between the hatch cover engagement position and the hatch cover non-engagement position. a hatch cover pivotally connectable on one side of the coaming and including a movable hatch pivotally movable from a closed position engaging the coaming to an open position disengaged from the coaming ; and a hatch cover securer movably connectable on an opposite side of the coaming and including a hatch cover engager movable from a hatch cover engagement position in which the hatch cover engager secures the movable hatch in the closed position engaging the coaming to a hatch cover non-engagement position in which the hatch cover engager allows the movable hatch to move to the open position, characterized in that the hatch cover securer includes: a plurality of engager supporting arms (1402, ... 1428), a plurality of elongated first hatch engagers (1432, ..., 1444) connected to and extending between respective engager supporting arms (1402, ... 1420), a hatch cover engager rotator configured to pivot the plurality of elongated first hatch engagers (1432, ..., 1444) from respective hatch cover engagement positions to hatch cover non-engagement positions, and a first and second actuator connected to the hatch cover engager rotator and configured to move the hatch cover engager between the hatch cover engagement position and the hatch cover non-engagement position. a plurality of engager supporting arms (1402, ... 1428), a plurality of elongated first hatch engagers (1432, ..., 1444) connected to and extending between respective engager supporting arms (1402, ... 1420), a hatch cover engager rotator configured to pivot the plurality of elongated first hatch engagers (1432, ..., 1444) from respective hatch cover engagement positions to hatch cover non-engagement positions, and a first and second actuator connected to the hatch cover engager rotator and configured to move the hatch cover engager between the hatch cover engagement position and the hatch cover non-engagement position. <EOS>