Caterpillar added the 226D and 232D skid-steer loaders and the 239D and 249D compact track loaders to its loader lineup. All four loaders include a sealed cab, electro-hydraulic controls, redesigned lift arms and premium cab seat choices. Cat says the 232D was designed for agricultural applications, while the other three loaders were engineered for the general construction and rental markets. The four loaders feature an intelligent leveling system that includes dual self-leveling system to allow operators to set the digging angle of the bucket. In addition, the new models come with an electronic priming pump with automatic air bleed for the fuel system. For added safety, a dead-engine and boom-down actuator was repositioned for easier access on the loaders.