Nanni N4.40 Manuel D'utilisation page 37

EVERY 200 OPERATING HOURS / AT LEAST EVERY YEAR.
Change the engine and transmission oil *.
Change the oil filters *.
Change the fuel filters *.
Check the raw water pump impeller. Change if needed.
Check the engine flexible mountings. Adjust as necessary *.
Clean the Turbo Wastegate.
Clean and touch up the paintwork as necessary.
EVERY 400 OPERATING HOURS / AT LEAST EVERY 2 YEARS.
Change the thermostat of the heat exchanger.
Change the heat exchanger filler plug.
Drain and change the coolant. Clean the coolant system.
Check and clean the heat exchanger tube stack. Change the O-ring.
Check and clean the air cooler tube stack. Change the O-ring. Check
and clean the transmission oil cooler tube stack.
Check the fuel injection nozzles. Change if needed.
Check cold valve clearance.
Check and clean the Turbo
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