Main pump excavator is a main component that functions to change mechanical energy into hydraulic energy and then channeled it into the hydraulic system. This analysis aims to determine the performance test operating speed, analyze the causes of damage, take corrective steps and recommend measures to prevent damage to the main pump.
The inspection procedure was carried out by performing a performance test consisting of operating speeds test and pressure test. Then an analysis of the results of the performance test, visual analysis of the damaged inner part of the pump, and analysis of the causes of damage using fishbone diagram.
The results of the analysis there is damage to the piston pump caused due to life time. Repair steps must be made to replace the piston pump as a whole (assy). Preventive action is carried out by preventing the occurrence of external leakage or internal leakage, as well as running daily check and preventive maintenance according to procedures
