The task – to make a diagnosis and, if necessary, repair systems for career excavators Hitachi ZAXIS 250LCN. This machine works on one of the granite mines of South Carolina. Year of the excavator 2004. Only routine maintenance took place today at the excavator.

Customer have the following important points: increased fuel consumption, cycle time increased, there was a leaking supply lines in the main hydraulic pump, reducing the efficiency of the cabin air conditioning.

Excavator Hitachi ZAXIS 250LCN was transported to the nearest service station of ADAMAS Corp. Diagnosis revealed violations in the operation of the engine, increased exhaust emissions, reduced pressure in the hydraulic system and damaged the left track links.

Our experts made a replacement of the air and fuel filters, engine oil replacement, replacement of hydraulic oil, replace the oil seals of the master cylinder (TRIAS hydraulics). We also tested the system and reduce the toxicity of the diesel particulate filter DPF and the selective reduction catalyst SRC. As a precaution, replace the air conditioning filter, add freon and washed excavator.

As a result, excavator Hitachi ZAXIS 250LCN become more productive and efficient. Lower fuel consumption, reduced duty cycle, vibration decreased. Due to repair of systems of decrease in toxicity excavator again meet with Stage IIIB.

The excavator was brought back to the granite quarry.