1994-2023 LIEBHERR L556 XPOWER WHEEL LOADER

Technical Description

The Liebherr L556 XPower wheel loader is a high-performance machine engineered for demanding construction and material handling applications. Featuring a robust 4-cylinder D944 A7 engine with electronic common rail high-pressure injection, it delivers a net power output of 221 hp (165 kW) at 1800 rpm and a maximum torque of 1055 lb-ft at 1100 rpm. The water-cooled in-line engine incorporates charge-air cooling and Liebherr-SCR exhaust after-treatment technology for optimal efficiency and emissions control. The loader is equipped with a dry-type air cleaner, pre-cleaner, and service indicator for reliable operation. Its hydraulic system utilizes a load-sensing variable axial piston pump, providing a flow capacity of 62 gal/min (235 l/min) and a relief valve setting of 4351.2 psi, ensuring responsive and precise control. The L556 XPower has a heaped bucket capacity of 4.3 cu yds (3 m³), an arm length of 8.6 ft (2 m), and a breakout force of 29,225.2 lbs (13,256 kg), enabling efficient loading and digging. The machine’s operating weight is 40,565 lbs (18,400 kg), with a static tipping weight of 30,205 lbs (13,701 kg). Key dimensions include a length with bucket on ground of 28.3 ft (9 m), a height to the top of the cab of 11.1 ft (3 m), and a dump clearance at max raise of 9.4 ft (3 m). The electrical system operates at 24 V, with a 28/140 (V/A) alternator and dual 180 Ah batteries. The loader is fitted with 23.5R25 L3 tires and offers a turning radius of 21.1 ft (6 m). Fluid capacities include 74 gal (280 l) for fuel, 27.7 gal (102 l) for hydraulic fluid, and 17.7 gal (64 l) for the cooling system.