Buying a new diesel generator set requires only a good brand and manufacturer. Generally, there is no problem, but some customers will purchase a second-hand diesel generator set as a backup power source for the purpose of saving production costs. Be more careful when you choose. When purchasing a second-hand diesel generator set, you should pay attention to these aspects:
The genset air-cooled cooling system uses air as the cooling medium. The high-speed moving air generated by the fan directly removes the heat of the high-temperature parts, allowing the diesel engine to operate at the optimum temperature. Heat sinks are arranged on the outer wall of the cylinder and the cylinder head to increase the heat dissipation area, and an air hood and a baffle are arranged to properly distribute the cooling air and improve the air utilization rate, so that the cooling effect is more effective and uniform.
When the diesel engine starts, the crankshaft does not turn or rotate slowly when it rotates, so that the diesel engine can not enter the self-operating state. There are generally three reasons. Firstly, the battery is insufficient, the starting resistance is tool large, or the movable contact and the static contact of the electromagnetic switch are burned. Secondly, poor contact. Thirdly, the specific inspection methods are as follow:
In principle, the intake, compression, work and exhaust processes of the genset diesel engine are started or completed when the piston reaches the top dead center and reaches the bottom dead center. However, in order to make the intake more fully, the exhaust is cleaner, and the intake and exhaust valves should be opened early and delayed.
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