Operation 3.5. Cold weather operation 3.5. Cold weather operation 3.5.1. Before the cold season Before the cold season begins, you should perform the following preparatory measures to ensure troublefree operation also in the winter months. The machine is provided with a aluminium radiator. There fore, the cooling system must be set to -37°C for the whole year. Use oils with the prescribed viscosities which are suitable for the cold weather to be expected in your region (see "5.3. Lubricants, fuels and filling capacities" on page 5-19). Fill up with winter diesel fuel. At low temperatures, paraffin deposits of diesel fuel may block the filters and lines (see "5.3.
Lubricants, fuels and filling capacities" on page 5-19). If the injection system, the starter, the battery and the genera tor are in perfect condition, it is ensured that the engine can be easily started and that the machine can be operated trou blefree even in extremely cold weather. Let these important components be checked at an authorised garage before the winter starts. Insufficient compression pressure impairs the start-up behav iour of the engine, especially at low temperatures. Let the compression pressure be measured at an authorised garage. If the speed is continuously increased, the starter may remain switched on until the engine finally starts up.
Let the engine warm up with increased idle speed for some minutes before starting to work. During the warm-up phase, operate the hydraulics devices several times without load. Add a standard antifreeze to the water in the windshield washer assy. If required, add 25 vol. % of alcohol (spirit) to the water. WA90-5 – VEAM270100 3-83