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One is that the needle valve fails to open after the injector oil return hole is blocked, oil supply is uneven, and the engine is not stable.
The second is that the airflow of the main valve of the thermostat is blocked and the gas in the water jacket of the body is not completely drained. The water tank is not filled with water, and it is easy to cause boiling. Cold winter water can not enter the water tank, easy to freeze the tank.
Thirdly, the water seal leakage will block the water pump bearing shell after the pump drain hole is blocked, so that the grease will be hydrated and the lubrication performance will be reduced, which will damage the water pump bearing.
Fourth, air dust particles in the air filter cover are blocked after the dust outlet is blocked. It is easy to block the lower filter, reduce the suction, reduce the power, even the dust particles enter the combustion chamber, accelerate the valve, cylinder liner, piston and other machine punches. Wear.
Fifth, the plug of the crankcase ventilation plug makes the oil sump of the crankcase thinner and deteriorated, which reduces the lubricating performance and causes burning of oil, which increases the consumption of oil.
Sixth, the oil in the oil pool of the oil pump will be increased, thinned and overflowed after the drain hole at the pump push rod and push rod sleeve is blocked.
Seventh, the exhaust gas inside the battery can not be discharged in time after the small hole in the battery cover is blocked, thereby damaging the battery.
Eighth, when the small hole in the lower part of the clutch casing is clogged, once the crankshaft oil seal leaks, the clutch stores oil, which will cause the clutch to slip.
Which outer hole of the tractor can not be blocked
To maintain and maintain the tractor, the following eight holes must not be blocked.