China Shangchai Diesel engine Installation Guide
by Starlight Generator dieselgeneratortech3.3 Installation of China Shangchai
Diesel Engine
3.3.1 When
the engine being installed, make sure the space above the engine compartment,
before and after the engine is enough to operate and maintain the engine.
3.3.2 To
avoid the stress due to deformation of the engine mounting plate affecting the
engine, make sure the engine mounting plate is provided with sufficient
rigidity and good flatness (≤0.2mm), and
remove the clearance between the engine bracket and the engine mounting plate
by grinding and other methods.
Although the
engine is connected with vibration isolation pads, ensure that the flatness of
the mounting plate is within 0.2mm. Depending on type of the engine, the
dimension from the engine mounting bracket to the engine crankshaft center-line
changes.
3.3.3 The
host machine of W series marine diesel engine is matched with the gearbox fro
the marine diesel engine with SAE flywheel housing. The diesel engine is
connected with the gearbox through either the flexible coupling or the
long-life flexible coupling.
Caution: After the
coupling is connected, no axial force acting on the crankshaft is allowed.
Otherwise, the engine thrust plates will be damaged.
During the
installation, make sure the concentricity of the engine crankshaft and the
gearbox input shaft is less than or equal to 0.2mm. After installation of the
unit finishes, check the connection accuracy.
3.3.4 Installation of front-end
output equipment of diesel engine
The
front-end output pulley of diesel engine can be used to drive the water pump,
the hydraulic pump of steering gear, the generator and other small machinery
and equipment, and its total power must not exceed 50%. If more equipment needs
to be driven by the front-end output equipment of diesel engine, a pulley with
separate supporting base must be designed and connected with the engine pulley
through the flexible coupling, and its coaxiality with the engine pulley should
be less than 0.2mm. The installation diagram is shown in the figure.
Caution: The
ancillary equipment of the engine should be symmetrically arranged on its both
sides to prevent the engine crankshaft from withstanding a unidirectional
tension.
If the
front-end output equipment of diesel engine is required to drive the net winch,
large hydraulic pump and other large machinery and equipment, it must be
connected through the flexible coupling, with a concentricity of no more than
0.15mm. After installation of the unit finishes, the connection precision
should be calibrated. In the process of use, the coaxial precision should also periodically
be checked to ensure that the coaxiality of the coupling is in the above-mentioned
allowable range.
Caution: Failure to
do so can damage the engine crankshaft and other related parts!
3.3.5 Installation of the intake
system
To ensure
sufficient fresh air for operation of the engine, the air inlet of the engine
should be arranged in the well-ventilated area outside the compartment. The
inlet pipe should be as short as much as possible and equipped with a minimum
number of bends, or with a large arc transition. The inner diameter of the
inlet pipe should be not less than 200mm, and the pipe wall should be smooth
and free of slag particles. No dust or foreign objects in the inlet pipe is
permitted during the installation. Also, make sure the connecting pipe from the
air filter to the engine turbocharger is sealed well without any gap and
leakage. The air filter inlet should be protected appropriately (such as,
equipped with protective screening) to prevent water or foreign objects from
entering into the engine. The inlet position should be away from heat sources
and the exhaust gas from the exhaust pipe should be prevented from being sucked
into the inlet pipe. If the air filter is installed in the engine compartment,
to ensure normal operation of the engine, the engine compartment must be
equipped with good ventilation equipment.
3.3.6 Installation of the exhaust
system
The external
exhaust pipe should be made of steel pipe and connected with the engine
turbocharger through flexible coupling, and its inner diameter should be
greater than the expansion joint, and it should be equipped with a minimum
number of bends. The external exhaust pipe should be securely fastened to the
hull without vibration, and its weight should not be imposed on the engine
expansion pipe. No expansion joint is permitted to be used to eliminate the
inter-pipe misalignment.
Caution: After installation of the exhaust system finishes, the engine back-pressure should be no more than 6kPa. Failure to do so can affect the engine performance!
Th exhaust
system must be able to prevent sea water, rain water, and or other objects from
entering the engine. Since the exhaust pipe surface is hot when the engine
running, the exhaust pipe should be installed to avoid approaching any
combustion objects.
Caution: To prevent
fire, staff burns and other accidents, take additional insulation measures on
the surface of the external exhaust pipe!
When several
engines are fitted together, if they share one external exhaust pipe, this may
cause the following problems: when several engines work non-simultaneously, the
condensate water caused by the external gas will enter into the inoperative
engines, and this can easily to damage to the engine parts.
Caution: Each diesel
engine should be equipped with its own independent exhaust system!
If the
exhaust system needs to be equipped with an exhaust muffler additionally, the
exhaust muffler should be selected and installed to minimize the increased
back-pressure of the exhaust system.
3.3.7 Installation of the cooling
system
Remember
that the cooling system pipeline in the engine has been connected well in the
engine factory.
For the
external cooling (sea or river water cooling) pipeline of the engine, the sea
water pump driven by a C-shaped V-belt can be installed on one side of the
engine according to the actual situation.
Caution: The cooling
pipe should be corrosion-resistant materials and be in a minimum length and
equipped with a minimum number of bends. The inner diameter of the cooling pipe
must not be less than that of the interface of the connecting component to
reduce the resistance from the water way!
We supply multiple brand of diesel generator sets such as Cummins, Perkins, Volvo, Deutz, Ricardo, Doosan Daewoo, Yuchai, Shanchai, Weichai, Wuxi, etc.
The genset style is varied, such as silent type, trailer type, portable type and so on.
Email: sales@dieselgeneratortech.com
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Created on Dec 19th 2017 21:23. Viewed 442 times.