Care and maintenance work 6.4 Engine cleaning Cleaning work For all cleaning work, make sure that no parts are damaged (e.g. bent cooler mesh).Cover electrical/electronic parts and connections to clean the engine (e.g. control units, generator, solenoid valves etc.) Do not aim the water/ steam jet directly at them. Run the en- gine warm afterwards. z Warm up the engine so that the water resi- dues evaporate. Cleaning with a high pressure cleaner z Clean the engine with a steam jet (maximum spray pressure 60 bar, maximum steam temperature 90 °C, distance at least 1m) z Warm up the engine so that the water resi- dues evaporate.
z Clean external cooler according to the ma- nufacturer’s specifications. Only carry out cleaning work on the en- gine when it is not running! Remove the engine cover and cooling air cover if available and remount after cleaning. 6 General The following causes of soiling make it neces- sary to clean the engine: z High dust content in the air. z Chaff and chopped straw in the area of the engine. z Coolant leakage z Lubricating oil leakage z Fuel leakage Because of the different application conditions, cleaning depends on the degree of soiling. Cleaning with compressed air z Blow dirt off or out. Always blow out the coo- ler and cooling fins from the exhaust air side to the fresh air side.
Cleaning with cold cleaner z Spray the engine with cold cleaner and lea- ve it for about 10 minutes to take effect. z Spray the engine clean with a high pressure water jet. 36