... engine Control of constant power of single pump Starting with zero displacement 1.Cummins diesel engine, ... water cooled, direct injection, turbo-charged and after cooled, electric control, it satisfies the emission requirement of ... pulling forcekN457Gradeability%70Ground pressureMPa0.098Circulating time of operations206Working dateBoom lengthmm44507000Stick lengthmm29003400Max. digging ...