Eight errors in agricultural machinery maintenance

1, the engine temperature is not afraid of high water temperature is not afraid of low. It was found that the water temperature was high, and all possible means were found to eliminate the cause. When the water temperature was low, it was considered correct. In fact, low water temperature hazards are also significant, resulting in inadequate fuel combustion, resulting in reduced power, increased fuel consumption, poor lubrication, and increased carbon deposits in the combustion chamber.
2. The valve clearance is rather big. In fact, when the valve clearance is large, the lift of the valve becomes smaller and the opening degree is not enough, so that the exhaust gas is insufficient to exhaust, resulting in a decrease in the engine power.
3, plus a little more oil is rather not less. It is believed that adding less bearings makes it easier to add bearings. In fact, the addition of more oil also causes damage to the engine, increases the resistance of the crankshaft and the connecting rod, increases the amount of oil splashed on the cylinder wall, and enters the combustion chamber, causing an increase in carbon deposition and affecting emissions.
4, the hub should be filled with butter should not be less than full. Always think that the butter in the wheel hub is the best. In fact, this is a waste of butter. Second, the butter can easily swell the oil seal or paper pad after heating, and it also affects the heat dissipation.
5, rather than small advance fuel injection angle. When the injection advance angle is too large and the engine accelerates rapidly, when the engine starts or goes uphill, the engine will generate knocking or knocking, which will cause great damage to the piston connecting rod, increase the resistance of the starter motor, and seriously affect the service life of the vehicle.
6, tighten the screws rather tight. Locomotives whose parts do not reach the specified torque will loosen. It is certainly not good, but increasing the torque blindly will deform the parts that are fastened, artificially causing the screw to lengthen, causing the thread to deform or even break.
7, the tire pressure is rather high and not low. Too high or too low tire pressure can affect its service life, and it is also not conducive to safe driving.
8, open the inspection when repairing the most insurance. Freely dismantling will inevitably destroy the well-matched state of coordination. If the assembly level is not high, the service life of the parts after inspection will be shortened.

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