误区1：机油宁多不可少

Mistake 1: more oil is necessary

曲轴箱内的机油不可多加，也不能少加，机油过多会增加曲柄连杆机构的滚动阻力，还会使飞溅到气缸壁上的机油增多。机油过多会导致燃烧室积碳增加，自上料混凝土搅拌罐车发动机功率下降，从而会影响到排放。司机在查看或增加机油的时候，应按照机油标尺上面的刻度增加，机油液位不能超过标尺刻度上限，低不能低于标尺刻度下线，自上料混凝土搅拌罐车机油液位一般增加到两刻度偏上的方位比较适宜。

The engine oil in the crankcase can not be added more or less. Too much oil will increase the rolling resistance of the crank connecting rod mechanism and increase the oil splashing on the cylinder wall. Too much oil will lead to the increase of carbon deposition in the combustion chamber, and the engine power of concrete mixer will decrease, which will affect the emissions. When checking or adding engine oil, the driver should increase according to the scale on the oil scale. The oil level should not exceed the upper limit of the scale, and the low level should not be lower than the lower limit of the scale. Generally, it is more appropriate to increase the oil level of the concrete mixer truck to the position above the center of the two scales.

误区2：胎压宁高不能低

Misunderstanding 2: tire pressure should be higher than low

有些司机喜欢把轮胎气压充得很高，认为这样既能超载又可节油，这种做法是不正确的。自上料混凝土搅拌罐车轮胎气压过高会使轮胎接地上减小，胎面磨损加重，下降了刹车时的制动效果，这会影响到自上料混凝土搅拌罐车行车。轮胎气压过低也欠好，气压过低除了会影响自上料混凝土搅拌罐车行车和制动效果以外，还会加速胎肩的磨损，以及增加自上料混凝土搅拌罐车的燃油耗费。司机在运用气泵自行充气的时分，应当按照厂家规矩的气压进行充气，轮胎气压标签一般位于车身或是油箱盖上面。
 

Some drivers like to inflate their tires at a high pressure, believing that this can not only overload but also save fuel, which is not correct. If the tire pressure of concrete mixer is too high, the tire ground will be reduced, the tread wear will be aggravated, and the braking effect will be reduced when braking, which will affect the driving of concrete mixer. Too low tire pressure is not good, too low pressure will not only affect the driving and braking effect of concrete mixer, but also accelerate the wear of tire shoulder and increase the fuel consumption of concrete mixer. When using the air pump to inflate, the driver should inflate according to the manufacturer's regulations. The tire pressure label is usually located on the body or the fuel tank cover.

误区3：车轮螺丝宁紧勿松

Mistake 3: wheel screws should be tight rather than loose

自上料混凝土搅拌罐车各部位的螺栓，根据直径、螺距及用途的不同，其紧固力矩均有相应规矩，达不到规矩的力矩螺栓会松动，超过紧固的力矩螺栓会被拉长。在对各部件紧固之前，需求先把握各螺栓的紧固力矩，例如车轮螺栓，一般情况家用自上料混凝土搅拌罐车轮胎螺栓的紧固力矩在100-130N·m之间。

According to the diameter, pitch and use, the tightening torque of the bolts in each part of the concrete mixer has corresponding rules. If the torque is not up to the standard, the bolt will be loose, and the bolt beyond the tightening torque will be elongated. Before fastening all parts, it is necessary to grasp the tightening torque of each bolt, such as wheel bolt. Generally, the tightening torque of tire bolt of domestic concrete mixer truck is between 100-130n · M.

误区4：附件皮带宁紧勿松

Error 4: the accessory belt should be tight rather than loose

有些司机认为前进附件皮带的涨紧度，可以前进压缩机的制冷效果，以及发电机的发电量，因此便一个劲地前进皮带的紧度，殊不知这种做法是差错的。附件皮带应当坚持恰当的涨紧度，由于皮带过紧会使轴承负荷过大，会缩短部件的运用寿命，还会导致皮带呈现开裂，会影响到自上料混凝土搅拌罐车的正常运用。

Some drivers think that the belt tension of the forward accessory can advance the refrigeration effect of the compressor and the power generation capacity of the generator, so they keep on pushing forward the belt tightness, but they don't know that this practice is wrong. The belt of accessories should adhere to the appropriate degree of tension. Because the belt is too tight, the bearing load will be too large, the service life of the parts will be shortened, and the belt will crack, which will affect the normal operation of the concrete mixer truck.