Hydraulic Fluids. Use petroleum base oil such as anti-wear type hydraulic oils or R & O ( Rust and oxidation inhibitor ) type hydraulic oils (ISO VG 32 or 46) with a viscosity range of 20 to 400 cSt at temperature of 0-600C both to be satisfied. Control of contamination. Mounting Alignment of Shaft. Suction Pressure. Hints on Piping. Suction Piping. Drain Piping. [Volume of Pre-Fill Oil Required] Recommended Drain Piping Size. Bleeding Air. Starting. Much care should be taken to maintain control over contamination of the operating oil which can otherwise lead to breakdown and shorten the life of the unit. Please maintain the degree of contamination within NAS Grade 10. The suction port must be equipped with at least a 100 µm (150mesh) reservoir type filter and the return line must have a line type filter of under 10µm. When installing the pump the filling port should be positioned upwards.
