A harvest aid machine and method of use is provided comprising a self-powered vehicle having a main chassis upon which a crate storage unit may be mounted. The harvest aid machine has improved maneuverability and may have a near zero-point turning radius. Crate storage unit may comprise a platform for receiving packed crates and a second platform for receiving empty crates. Alternatively, crate storage unit may include a chute assembly for receiving empty crates and/or a roller table for receiving packed crates. A harvest aid machine may further include harvest modules that may be removably mounted to a main chassis and are width-adjustable such that the harvest modules are adaptable to different crop row spacing, and optionally different crate sizes.