Fuel system The engine fuel system is a so-called common rail-system. The advantage of the common rail-system is that the engine control unit controls the timing and fuel amount, this mean better emission control and a smooth running engine. All work on the engine common rail-system must be carried out at an authorized workshop. Use only the recommended grade of fuel: See the chapter “Technical Data”. WARNING! Fire risk. When carrying out work on the fuel system makes sure the engine is cold. A fuel spill onto a hot surface or an electrical component can cause a fire. Store fuel soaked rags so that they cannot cause a fire.
Changing fuel filter 1. Close the fuel valve/valves. 2. Clean the filter bracket and put a suitable vessel under the filter. 3. Remove the cables from the water trap (1). 4. Unscrew the filter, use a filter wrench if needed.. 5. Clean the sealing surfaces of the filter bracket. Make sure the filter is absolutely clean and the sealing surfaces are undamaged. Moisten the sealing rings with engine oil, including the inner rubber seal located inside the threaded hole in the center of the filter. NOTE! Do not fill the new filter with fuel before assembly. Contaminations may get into the system and cause damage and malfunction. 6. Screw the new filter on by hand until the seal just touches the mating surface. Then tighten a further 1/2 turn. Reinstall the water trap cables. 7. Open the fuel valve. 8. Bleed the fuel system. See Chapter ”Bleeding the fuel system”. 9. Start the engine and check for leakages.
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