The operation of an excavator requires a variety of operations from work components. Operation of the excavator work components requires hydraulic power. Excavator work components consist of swing motor, travel motor, boom, arm and bucket. Basically, the hydraulic system is a system for transferring and controlling force and movement with liquid fluid. Pressurized oil from the pump is distributed to various kinds of excavator work components. To find out the power that occurs
requires a large flow rate and pressure on the work components. Power is in kW, flow rate is in m3/second, and pressure is in N/m2. The power produced by a variable displacement pump is 130.848 kW. The power generated by the Hydraulic Pump is then distributed to work components including a hydraulic swing motor of 7,586 kW,
a hydraulic travel motor of 26,512 kW, a hydraulic cylinder boom of 32,888 kW, a hydraulic cylinder arm of 18,209 kW, and a hydraulic cylinder bucket of 15,273 kW. The total amount of power distributed to the work components is 100,468 kW. When compared with the hydraulic pump power of 130,848 kW, the power used is 77,952% of the hydralic pump power
