2007-2023 LIEBHERR L 556 Z WHEEL LOADER

Technical Description

The Liebherr L 556 Z is a mid-size wheel loader engineered for demanding material handling and loading operations. This machine features a 4.7 cubic yard (3.6 m³) bucket capacity, making it well-suited for aggregate, coal, and general earthmoving applications. Powered by a Liebherr D 934 A7 4-cylinder turbocharged diesel engine, the L 556 Z delivers 188 gross horsepower (140 kW) at 1,500 RPM, providing optimal performance across diverse job sites. The wheel loader weighs 39,460 pounds (17,899 kg) in operational configuration and achieves a tipping load of 29,870 pounds. With a maximum dump clearance of 11.6 feet (3 m), the machine efficiently unloads material into trucks and hoppers. The driveline incorporates Liebherr's Power Efficiency (LPE) technology, which reduces fuel consumption by 25% or more compared to conventional travel gears, significantly lowering operating costs. The L 556 Z features a center-pivot rear axle with 13-degree oscillation for enhanced maneuverability and stability on uneven terrain. The engine employs electronic common rail high-pressure injection, water cooling with exhaust turbocharging, and a diesel particulate filter to meet emission standards. Standard equipment includes a load-sensing variable axial piston pump and 23.5R25 L3 tires. The transverse diesel engine mounting allows optimal weight distribution and cab positioning, contributing to operator comfort and visibility. This wheel loader represents Liebherr's commitment to reliability, efficiency, and productivity in the mid-size loader category.