MWM MS 3.9L, Operation And Maintenance Manual, Page: 30 / 53

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NP 085.70.69 - 01/06
Fuel System
Preventive Maintenance
Fuel is an important factor to assure the good engine operation without failures for a long time. Fuel must be clean, exempt
of water and impurities.
If the fuel to be used in your engine was stored, see FUEL STORAGE.
During the engine operation, watch the fuel indicator.
Fill the fuel tank before it reaches its minimum fuel level to avoid suctioning the dirt deposited on its bottom and damaging
the filter.
Refueling
1. Clean filling nozzle cap whenever is necessary.
2. At end of each operation day, fill the fuel tank up to avoid air humidity condensation inside it.
Caution: After refueling, keep the fuel tank cap well closed. Never improvise. If the cap has any problem,
replace it for an original part.
Bleed air from the system whenever the engine stops due to a lack of fuel.
Do not smoke nor approach any type of exposed flame or sparks during refueling, because diesel
fuel is highly inflammable.