Maintenance Manual of 4M11 Series Diesel Engine For Land Power Generators
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Check the fuel level indication from the instrument panel. Add fuel if necessary. The
diesel used shall meet the specification. Keep clean the diesel. It's better to place the diesel
under stationary state for more than 72 hours before adding into diesel engine. The diesel
shall be added into the fuel tank via the built-in filter screen.
Notice: Check the diesel level before starting the diesel engine each time.
Check for presence of water, air, oil, and fuel leakage.
Check the diesel engine surface for signs of water, air, oil, and fuel leakage.
Check the fan.
Visually check the fan blades for presence of damage, check the plastic fan for presence
of deformation, check the steel fan rivets for presence of looseness, check the blades for
presence of bending, and check the connecting bolts for secure fastening, in order to ensure
the reliable functioning of fan.
Check the belt.
The belt is tensioned automatically by belt tensioner. Check the tension of belt by
pushing the belt with hand. Visually observe the V-belt for cracking and scratch and when
necessary replace.
Check whether the exhaust color is normal.
The normal color of exhaust gas is light grey. Upon detection of change in color, check and
solve the cause.
Figure 2-4 Check the Exhaust Gas
Check whether the running sound is normal
Check whether the rotating speed and vibration are normal
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