MWM Acteon Workshop Manual page 17

Running-in
OAll MWM engines are assembled and tested in the factory, making sure its immediate operation.
However, it needs to be correctly ran-in, regarding that its performance and durability depend, largely, on the cares
taken during first operation phase.
As general rule, it is considered as running-in period the first 2,000 km for vehicular engines or the firsts 50 service
hours for stationary, industrial and agriculture engines. The vehicle or equipment moderate operation has decisive
importance to its durability, service safety and economy.
During this period it is very important to follow these recommendations:
• Carefully check if engine oil level is correct;
• Carefully check if water level of the engine cooling system is correct;
• Avoid forcing the engine at high speeds, that is to say, to do not apply extreme conditions of load or, in the case
of the vehicular, to "stretch out" the speeds;
• Avoid forcing the engine at low speeds;
• Avoid forcing the engine while it has not reached the normal operation temperature yet;
• Avoid operating over the limit of 3/4 (75%) of the maximum load of the vehicle or equipment;
• Avoid operating the engine at constant speeds for long periods of time;
• Avoid leaving the engine running at idling speed for a long period of time;
Strictly follow the maintenance instructions.
Following these recommendations the useful life of the engine will be prolonged.
Fuel Specifications
MWM Acteon engine must operate with regular Diesel fuel. It is recommended to use fuel of specification according
to the Brazilian Resolution CNP nr. 07/80 of Petroleum National Council.
The fog point (beginning of paraffin segregation) must be below the ambient temperature and the Cetan index must
not be less than 40.
Lubricant oil
Oil Level Check
• Stop the engine and wait 30 minutes so that the oil can flow back to the carter.
• Make sure that the vehicle is levelled.
• Before pulling oil dipstick, clean the surroundings.
• If necessary complete up to the upper mark (MAXIMUM), without exceeding it. Use the same oil mark and type
to complete the level.
• Do not operate the engine with the level below the lower mark (MINIMUM).
• Use only recommended lubricant oil.
• Do not mix different oil brands.
• Chosen an oil type and brand, always use the same.
9.612.0.006.7160 - 05/04
Operation and Maintenance