Oil analysis

A look at the oil analysis strategy makana.com follows

Oil analysis plays a critical role in our inspection process, allowing us to assess the internal condition of the engine and hydraulic systems. By analyzing the oil for wear metals, contaminants, and corrosion, we can detect early signs of component degradation or impending failures.

Engine oil analysis: We extract engine oil samples and send them to a certified laboratory, where they are tested according to ISO ASTM D6224 standards. Key elements tested include:

• Iron (Fe): Wear from steel components (acceptable level below 71 ppm).

• Aluminum (Al): Wear from aluminum parts (acceptable level below 16 ppm).

• Copper (Cu) and Lead (Pb): Signs of bearing wear (acceptable levels below 26 ppm and 16 ppm, respectively).

• Silicon (Si): A measure of dirt or dust contamination (acceptable level below 11 ppm).

• Sodium (Na): Potential coolant contamination (acceptable level below 16 ppm).

Hydraulic oil contamination: Similar to engine oil, hydraulic oil samples are tested for contamination and wear metals. For hydraulic systems, acceptable limits are:

• Iron (Fe): Below 16 ppm.

• Aluminum (Al): Below 9 ppm.

• Sodium (Na): Below 51 ppm (higher due to differences in system demands).