Premium quality hydraulic mineral fluid is recom- mended, like HLP oils to DIN 51524 (part 2 & 3) or ISO6743/4 (HM & HV). Brugger-value recommended to be 30 N/mm2 minimum for general application and 50 N/ mm2 for heavily loaded hydraulic equipment and fast cycling machines and/or high dynamic loads, measured in accordance with DIN 51 347-2. See also Document MSG30-3248/UK Parker Hydraulic Fluids.
Viscosity
The normal operating viscosity should range between 16 and 100 mm2/s (cSt). Max. start-up viscosity is 1000 mm2/s (cSt).
Filtration
For maximum pump and system component functionality and life, the system should be protected from contami- nation by effective filtration.
Fluid cleanliness should be in accordance with ISO clas- sification ISO 4406:1999. The quality of filter elements
should be in accordance with ISO standards.
