Essential Knowledge of Generator Usage Environment and Installation 2

This article continues to introduce the necessary knowledge for the use environment and installation of generators.

4. Generator assembly

4.4.1 Installation with the generator

This engine is suitable for use with a single - supported generator. The elastic coupling of the single - bearing generator is matched with the flange interface of the SAE flywheel. The matching tolerance has high precision, and it is relatively convenient to connect with the prime mover. The stop dimension of the SAE flange interface of the generator is designed to match the flywheel housing of the prime mover, so there is no need for further adjustment of the coaxiality, and the concentricity can be guaranteed.

Installation method of the engine and the generator:

1.Install two M16 studs (for positioning) diagonally on the flywheel.

2.Remove the window plate at the driving end of the generator, and remove the fixing plate between the elastic coupling plate and the flange interface.

3.Lift the generator with a sling through the lifting hook of the generator.

4.Move the generator close to the engine. Make sure that the mounting holes of the elastic coupling plate are aligned with the two positioning studs on the flywheel, and the stop of the flange interface and the stop of the flywheel housing are in contact at the same time. First, tighten the connecting bolts between the flange interface and the flywheel housing to connect the engine and the generator in place. Then, remove the two positioning studs, and then fasten the bolts of the elastic coupling plate to the flywheel.

5.Check if there is a gap between the base of the generator and the mounting surface of the engine base. If there is a gap, use metal shims to ensure that the generator base is firmly supported. Do not directly tighten the bolts between the generator base and the mounting surface of the engine base if there is a gap, as this can cause serious consequences.

6.It is recommended to use 10.9 - grade flange - faced bolts (Q184 series) for the mounting bolts between the generator connecting plate and the flywheel. The tightening torque should be controlled at 160 N·m. Note that spring washers should not be installed, as they can cause an increase in stress and lead to damage to the coupling plate.

7.The tightening torque of the bolts between the flange interface and the flywheel housing should be (85 - 100) N·m.

8.After installing the generator, turn the flywheel to move the crankshaft towards the output end. Use a dial indicator at the engine pulley to measure the axial clearance of the crankshaft. The axial clearance of the crankshaft is required to be 0.15 - 0.344 mm, and it should be within this range after the unit is installed.

Note: The crankshaft - flywheel assembly on the engine has been statically and dynamically balanced during assembly. Users are prohibited from replacing the flywheel privately.

4.4.2 Installation of shock - absorbing pads

As the engine is a vibration source, shock - absorbing pads should be installed between the engine and the engine base, as well as between the generator and the engine base, to reduce the spread of vibration.

4.4.3 Installation of the water - tank radiator

The heat - dissipation area of the water - tank radiator and the intercooler, as well as the wind - shield, are designed reasonably and are provided with the engine when it leaves the factory. If the engine is not equipped with a water - tank intercooler, a water - tank intercooler that matches the engine should be selected; otherwise, the optimal operating performance cannot be achieved.

For an engine with a rated power of 1650 kW, the recommended heat dissipation capacity of the high - temperature water circuit is 650 kW, and that of the low - temperature water circuit is 940 kW.

Dingbo Power was founded in 1974 and is one of the earliest manufacturers of generators and diesel generator sets in China. If you want get more information, please feel free to send email to sales@dieselgeneratortech.com we will pay highly attention on your question.

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