• DIN 51524 part 3 HVLP
• ISO 6743/4 L-HV
Verify with the supplier that the quality and performance of the hydraulic oil complies with the
previous standards.
When changing from mineral oil to a non-polluting synthetic oil, or when changing to biodegradable
oil, contact a Hiab authorised service workshop.
Recommended hydraulic oils
ISO VG 32
ISO VG 46
ISO VG 68
Examples
Tellus S2 V32
Super 32
Hydrol L-HV 32
Shell TELLUS T 46
Texaco RANDO HDZ46
Agip ARNICA 46
Mobil SHC 526
Where to use them
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).
Viscosity of oil at 40°C
Temperature range
32
-25°C to 75°C
46
-15°C to 90°C
68
-5°C to 90°C
The recommended viscosity during normal working conditions is between 16 and 40cSt.
Hiab strongly recommends an oil working temperature below 70°C. If necessary consider an oil
cooler or heater.
Maintenance and Service
106
HIAB L-HiPro 145/165/195/235