2. Drain coolant (see chapter Vehicle settings and routine maintenance).
3. Remove the oil filter housing.
When the oil filter housing is removed, the remaining amount of coolant flows from the oil cooler into the engine sump, therefore, to avoid damage to the engine due to coolant entering the engine oil, replace the engine oil after completion of work.
4. Cover the generator to prevent contamination.
5. Turn out bolts of fastening of an oil cooler (1) and remove it from the body (2) oil filter. Reposition the coolant hose if necessary.
6. Replace the profile gaskets on the oil filter housing.
7. Clean mating surfaces of engine crankcase, oil filter housing and oil cooler.
8. Install the removed components in the reverse order of their removal.
9. Change the engine oil (see chapter Vehicle settings and routine maintenance).