An accumulator is coupled to an agricultural baler and is configured to support a crop package exiting the baler. The accumulator includes an accumulator frame coupled to a wheel supported on a surface and a carriage pivotably coupled to the accumulator frame about a first rotational axis for movement between a first position and a second position. The carriage is configured to support the crop package when the carriage is in the first position. The carriage is also configured to discharge the crop package from the accumulator when the carriage is in the second position. The accumulator also includes an over-center linkage system coupled between the accumulator frame and the carriage. The over-center linkage system is configured to lock the carriage in the first position.
