Assembly Of Diesel Engine; Pre-Start Preparations Of Diesel Engine - Baudoulin 4M11G Maintenance Manual

Maintenance Manual of 4M11 Series Diesel Engine For Land Power Generators
Every diesel engine is fitted with two special cylinder head bolts for hoisting of diesel
engine. The end face of the hexagon head of these bolts has a M14 screw and a lifting eye is
assembled on this screw. During the hoisting, it's recommended to use the slings shown in
figure a) of Figure 1-4. Keep the crankshaft of diesel engine level during the hoisting. If the
slings are not on one same line with the cylinder head bolts or lifting eyes, the cylinder head
bolts will be damaged or even broken during hoisting to damage the diesel engine. Therefore,
it must be especially cautioned by the user.

1.6 Assembly of Diesel Engine

Adopt the flexible connections and ensure that the crankshaft centerline of the diesel
engine is coaxial with the axis of input shaft of drive unit (gearbox, transmission, or
alternator) and ensure that the crankshaft is free of additional axial force due to assembly.

1.7 Pre-start Preparations of Diesel Engine

(1) Check the coolant level
If the engine is already assembled on a machine, observe the coolant level. If the coolant
is insufficient, add coolant through the filler port cap. The filler cap is equipped with a
pressure relief valve and a bleeding button. Before opening the filler cap, press the bleeding
button to open the cap in the case of a hot engine. If the diesel engine remains hot, do not add
a great deal of coolant. Dramatic temperature change could cause damage to the parts. Start
the engine. While the engine is running (1,000 r/min), continue to add the coolant to specified
location, till the coolant level is stable, and finally assemble the filler port cap.
(2) Check the fuel level
With the engine assembly on the complete machine, turn on the power supply switch,
True
a)
Figure 1- 1Hoisting Diagram of Diesel Engine
False
b)
5