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Viscosity:
The ambient temperature at the installation site and the application area is decisive in selecting the
appropriate viscosity class. Excess viscosity can cause difficulties when starting up, while too low a
viscosity reduces the lubricating effect of the engine oil, leading to high oil consumption.
Viscosity is classified by SAE.
Always use multigrade lubricating oils!
Always ensure the prescribed lubricating oil quality when selecting the viscosity class!
Ambient temperatures [°F]
Viscosity class
14 ..... 122
SAE 15W/40
−4 ..... 86
SAE 5W/30
−4 ..... 122
SAE 10W/40
Tab. 30 Engine oil recommendation
Viscosity class for first fill:
For the first fill, the machine engine is filled with oil of the following viscosity class:
Ambient temperatures [°F]
Viscosity class
−4 ..... 122
SAE 10W/40
Tab. 31 Viscosity class for first fill
2.8.3 Fuel recommendation
To comply with emission regulations, diesel engines fitted with an exhaust gas treatment system
must be operated only with a sulphur-free diesel fuel. Compliance with the emission requirements
but also the durability of the individual exhaust gas treatment components is not assured if this re‐
quirement is ignored!
The diesel fuel must meet the requirements of EN 590 and ASTM D975 respectively.
The use of other fuels as well as the mixing with additives is only permitted after consultation with
the engine manufacturer.
The following fuel specifications are approved:
■ Diesel fuels according to EN 590
─ (≤0.0010% Sulphur – EU: Level IIIB and higher)
For the US market the use of extremely low-sulphur diesel fuel is required by law:
■ Diesel fuels according to ASTM D975
─ (≤0.0015% Sulphur – EPA: Tier 4 interim and higher)
Never store fuel in galvanized containers!
Biodiesel:
According to EN 590 and ASTM D975, a specific portion of biodiesel is permitted in the fuel.
Depending on the country of origin, biodiesel can be produced from different plant materials and
thus have different properties.
2
Technical Data
2.8
Engine
No.: 902366 10 USE
Operator Manual Portable Rotary Screw Compressor
MOBILAIR M55 PE SIGMA CONTROL SMART pV
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