2. Drain the oil tank through the drain plug (1). Make
sure the system contains as little as possible.
The capacity of the tank is 40-235 litres (10.6-62
gallon). Use a container with sufficient capacity.
NOTE
Ensure the waste oil is disposed of safely and in accordance with local
environmental regulations.
3. Change at the same time:
- all filters
4. Refit the drain plug.
Filling the oil tank with hydraulic oil
The oil used for filling must be clean. Do not mix different oils.
Hydraulic oils must have been dealt with according to cleanliness requirements ISO 4406: -/16/13.
Hydraulic oil that is approved for HIAB products must comply with one of the following standards or
equivalents:
- ISO 11158 HV
- DIN 51524 part 3 HVLP
- ISO 6743/4 L-HV
Suppliers of hydraulic oil must verify that the quality and performance of the oil complies with the
above standards.
When changing from mineral oil to a non-polluting synthetic oil, or when changing to biodegradadle
oil, contact a HIAB service workshop.
Viscosity of oil
The viscosity of the oil is of great importance to achieve high efficiency of the hydraulic system.
The naming of the oil in the table below: 32, 46 or 68 tells the viscosity of that oil at 40°C (reference
temperature).
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Maintenance and Service
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HIAB K-HiPro 285-425 X4