Operation and Maintenance Manual for PowerKit 6M16 Series
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prevent water and pollutant from entering the diesel engine.
3.3.3 Installation of exhaust system
The external exhaust pipe must be steel pipe avoiding excessive bends, and it should be firmly fixed.
No vibration of such pipe is allowed, and it shall not impose any force on the expansion pipe of the
diesel engine. After installation of the exhaust system, the exhaust back pressure of the diesel
engine shall not exceed 7.5kPa avoiding impacts on performance of the diesel engine. Since the
surface temperature of the exhaust pipe is high during operation of the diesel engine, the exhaust
pipe must be installed away from flammable objects, and the external exhaust pipe must be
provided with thermal insulating device on the surface to prevent workers from being burnt.
3.3.4 Installation of cooling system
The inner cooling pipelines of the diesel engine have been connected before delivery, and no
installation is required. The cooling water pipes should be made of anti-corrosion materials, and it
should minimize the pipe length and elbow number as possible. The inner diameter of the water
pipe shall not be less than that of the pipe joint to reduce the resistance in the water pipe and
improve the efficiency of water pump.
3.3.5 Precautions for installation of front end output of diesel engine
The front end output belt pulley of diesel engine can be used to drive small machines like water
pump and generator, and they should be arranged symmetrically on both sides of the diesel engine
to avoid unidirectional pulling force on the crankshaft of diesel engine. If large machine is to be
driven, flexible coupling must be used for connection. Such coupling should be installed based on
the specified alignment accuracy and the coaxial accuracy should be calibrated regularly during
operation to avoid damage to diesel engine components.
3.3.6
Refer to the above related sections for installation of other components of the diesel engine.
3.4 Preparations before starting the diesel engine
1) Coolant level check
The coolant level can be checked from the inspection hole on the expansion tank; if the coolant is
insufficient, open the filler port cap to refill. It is prohibited to add a large amount of coolant when
the engine is still hot to prevent the parts from being damaged due to sudden temperature change.
2) Check the fuel level
