The A7VO variable pump is designed for operation with HLP mineral oil according to DIN 51524.
The hydraulic fluid should be selected such that the operating viscosity in the operating temperature range is within the optimum range
At no point of the component may the temperature be higher than 115 °C. The temperature difference specified in the table is to be taken into account when determining the viscosity in the bearing.
Finer filtration improves the cleanliness level of the hydraulic fluid, which in turn increases the service life of the axial piston unit.