Conveyor systems and assemblies for use in conveyor systems are provided. In some embodiments, a conveyor system comprises a mechanical chain and a chain adjustment assembly. In other embodiments, a conveyor system comprises a panel mount assembly, and in still other embodiments, a conveyor system comprises a support structure and a leveling assembly. In yet other embodiments, a conveyor system comprises a conveyor track assembly and a conveyor top protection assembly. Any embodiment of the conveyor system may also comprise a blocking bar configured to be positioned under a lower conveyor track assembly and/or a cap positioned between an end of a conveyor track assembly and a sprocket. Further, a cover assembly for a conveyor system may comprise a shield positioned over a sprocket assembly and/or an idler assembly of the conveyor system. A guard for positioning at an end of the conveyor system also may be provided.