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Engine use and maintenance
What is the function of the clutch? In addition to transferring the power of the engine to the transmission, the clutch has the following functions: 1. Separate power: It can quickly separate the power of the engine and the transmission. The engine does not have to stop working when the tractor shifts gears and stops. 2. Engagement power: It can make the engine's power softly transmitted to the gearbox, making the tractor start steadily. 3. Safety effect: When the tractor is overloaded or the engine speed increases sharply, the clutch slips and the transmission and travel device components are protected from damage. What is the cause of engine speed instability? 1. All the moving parts of the fuel injection pump are issued with cards and hair is astringent, and the wear levels of the cylinder plungers and the oil valves are different, which causes uneven fuel supply; individual cylinder plunger springs and outlet valve springs are broken. 2. The governor parts are seriously worn and the clearance is too large; the governor spring is weakened. 3, fuel supply advance angle is too large or too small. 4. The oil circuit and the filter are clogged with water or air in the fuel. 5, the cylinder compression force is inconsistent. What is the reason why the exhaust pipe of a tractor emits blue smoke? The blue smoke shows that the engine burns the engine oil. The reasons are: 1. Excessive oil in the oil pan. 2, piston ring counterparts, anti-wear, wear or coke. 3, cylinder wall and piston wear, cylinder gap is too large. 4. The oil level in the air filter oil pan is too high. 5. The engine works at a low temperature and the piston ring is not tightly sealed. What are the causes of inconsistent engine cylinder work? 1. The fuel supply of each cylinder is not uniform. 2. The fuel injection pressure of the injector is too high or too low, and the injection quality is not good. 3. Inconsistent injection time of each cylinder. 4. Inconsistent wear levels of cylinder liners, pistons and piston rings in each cylinder. What is the reason for the high engine idle speed? 1. The bracket spring claw and the operating arm shaft are fixed incorrectly. 2, the engine fuel supply advance angle is too large. 3, plunger pair, the outlet valve and nozzle wear. 4. Low pressure and high pressure oil leaks.