Flywheel Housing Ass’y

The main function of the flywheel housing assembly of the excavator is to effectively connect the engine and the transmission, while also serving as a protective cover and support structure.

The flywheel housing is an important component of the excavator, usually made of cast iron with characteristics of being not easily deformed. It is installed between the engine and the transmission, connecting the engine body, providing protection, and serving as a support structure. Specifically, the functions of the flywheel housing include:

– Connection: The flywheel housing connects the crankcase, starter, and engine oil pan, while containing the flywheel assembly internally, effectively connecting the engine and the transmission.
– Protective function: The flywheel housing acts as an interface to the engine body, providing protection and support, shielding internal mechanical components from external influences.
– Support function: The bottom of the flywheel housing is equipped with a movable bottom shell, facilitating the assembly and disassembly of the flywheel, clutch assembly, clutch adjustment, and also providing a mounting position for the starter motor.

In addition, the design and installation of the flywheel housing are crucial to ensure the concentric connection between the engine and the transmission. Any deformation or misalignment may result in a decrease in power transmission efficiency, and even lead to mechanical wear and abnormal noise. Therefore, the accurate installation and maintenance of the flywheel housing are essential for the normal operation of the excavator.