The Volvo LM 621 is a robust wheel loader produced from 1971 to 1978, designed for heavy-duty material handling in construction and industrial environments. It features a powerful 4-cylinder Volvo BM D 42 engine with direct injection, delivering 80 hp (60 kW) at 2300 rpm and 198 lb-ft of torque at 1300 rpm. The loader is equipped with a full powershift transmission, offering four forward and four reverse gears, with a maximum speed of 18.7 mph (29 kph) in both directions. The hydraulic system utilizes a Hamworthy pump, providing a flow capacity of 38.4 gal/min (144 l/min) and a relief valve setting of 1422 psi. The LM 621 has an operating weight of 15,900 lbs (7,212 kg) and a static tipping weight of 6,613.9 lbs (3,000 kg). The bucket offers a heaped capacity of 4 cu yds (3 m³) and a struck capacity of 1.3 cu yds (1 m³), with a dump clearance at max raise of 9.6 ft (3 m) and a hinge pin max height of 12.7 ft (4 m). The machine’s turning radius is 16.5 ft (5 m), and it is fitted with front tires 16.9-30/14 and rear tires 9.00-20/10. The LM 621 also features a 24V electrical system, a fuel capacity of 29.1 gal (110 l), and a hydraulic fluid capacity of 23.8 gal (87 l), making it a reliable and efficient loader for demanding applications.