In order to burn the remaining oil in the cylinder clean. Before the stall of the tractor engine, many pilots often used a few throttles. That is to say, suddenly increasing or decreasing the throttle, it was actually counter-productive. The throttle is often harmful and unhelpful. It is harmful. Here are some of the hazards: One: Because the throttle is suddenly large and small, engine speed is high, low, crankshaft journal, connecting rod journal, etc., alternating shock load is also suddenly large and small, internal stress increases. It is easy to produce fatigue damage and it is easy to break the crankshaft over time. Hazard II: The throttle is often throttled, which can easily cause deformation of the connecting rod. The eccentric wear of pistons and cylinder liners reduces the compression force of the cylinder. It is difficult to start, the power is reduced, and the fuel consumption is increased. Hazard 3: Throwing the throttle, so that when the amount of fuel supply is large and small, resulting in incomplete combustion of fuel, pistons, piston rings, valves and other carbon, accelerate wear and tear. Hazard 4: Because of the thumping door, the cylinder head, the plane of the body, etc., are concentrated and the air leakage from the cylinder is generated, which easily bleeds the cylinder head. Hazard 5: Throttle often, so that the frequency of valve spring elongation and compression suddenly increases rapidly, prone to fatigue fracture. Hazard 6: Due to the throttle, the fuel that enters the cylinder is too late to burn, it will break into the oil pan, dilute the oil, and accelerate the wear of the crankshaft and other mechanical parts. At the same time, the exhaust pipe emits black smoke, polluting the environment and wasting oil. Understand the above six hazards, in order to ensure the safety of the tractor engine parts and maintain a good state of technology, agricultural machine operators must not chaos throttle.
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