1999-2008 KOMATSU WA75-3 WHEEL LOADER

Technical Description

The Komatsu WA75-3 is a compact wheel loader designed for versatile earthmoving and loading operations. It features a 57 hp (43 kW) 4-cylinder diesel engine (model 4D 98E) with a displacement of 202.5 cu in, delivering power at 2500 rpm and peak torque at 1600 rpm. The hydrostatic transmission provides 2 forward and 2 reverse gears, enabling a maximum forward speed of 12.5 mph (19 kph). Operating weight is approximately 10,693 lbs (4,850 kg), balancing agility and stability. The loader’s bucket has a heaped capacity of 1.1 cubic yards (1 m³) with a breakout force of 10,925.8 lbs (4,956 kg) and a width of 6.4 ft (2 m), suitable for various material handling tasks. Dump clearance at maximum raise is 8.5 ft (2 m), with a maximum hinge pin height of 10.6 ft (3 m) and a reach of 3 ft (1 m) at max lift and dump position. The bucket dump, raise, and lowering cycle times are 1.0 sec, 4.9 sec, and 2.6 sec, respectively. The hydraulic system employs a closed circuit pump with a 17 gal/min (64 l/min) flow and a relief valve setting of 2,973 psi, providing efficient lifting force. Ground clearance is 1.6 ft (0.5 m), with a cab height of 8.7 ft (2.65 m) and overall length with bucket on the ground of 17.7 ft (5.4 m). The wheelbase measures approximately 6.6 ft (2 m), supported by 405/70 R18 tires and a turning radius of 12.4 ft (3.8 m), enabling maneuverability in confined spaces. The operating voltage is 12V, with an 80A alternator supplying electrical power. Fuel capacity is 23.8 gallons (87 liters), supporting extended operation.