8. Cold weather

8. Cold weather

Cold weather operation (below 0 °C) requires special care to avoid problems and to maintain high comfort and safety. • The viscosity of oils in engine, transmission, differentials, and hydraulic system should be of a suitable viscosity for the lowest expected ambient temperature, see Oil Speci fication Sheet. • The coolant must contain anti-freeze to avoid ice in the cooling system and to protect against corrosion, see chapter 7, maintenance, 2000 Hours Service. • As the temperature drops, the battery capacity drops accordingly. The batteries must be in good condition and fully charged when the dump truck is operated in low temperatures. • Fuel must be of a low pour point, and the fuel tank must be fi lled up at the end of the shift. 0.5 - 2 % alcohol (isopro panol) can be added to avoid condensation. • The washer fl uid should contain a mix of alcohol (isopropanol) and water which at least is suffi cient to avoid icing in the tubes. • At very low temperatures (below -10 oC) use of engine heater can be necessary to avoid starting diffi culties. It is recommended to use an engine heater (optional equipment) at low temperatures. The engine heater has an electrical element which heats the engine coolant. • Extend the warm-up period to secure that component lubrication is obtained. The dump truck shall be operated with light load and reduced rpm during warming up. • Pay special attention to the ground surface. In case of snow and ice, use snow chains on the wheels to secure the wheel grip. • If the dump truck is equipped with exhaust-heated body, this should be connected to avoid material freezing to the body.