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1、用油门控制发动机的转速。有些拖拉机驾驶员将油门放到最大位置,以期提高发动机的转速和作业速度,这对轻负荷作业的拖拉机发动十分不利。例如,播种、平地运输、中耕以及排灌、加工等作业,由于机组作业中不能使拖拉机达到满负荷,此时提高油门会造成油耗增加,降低经济效益。而且发动机在最高转速下运转还会加速发动机各摩擦幅面
1, with the throttle control engine speed. Some tractor drivers to the throttle to the maximum position, in order to improve the engine speed and operating speed, which light-load operation of the tractor launched very unfavorable. For example, seeding, flatland transportation, cultivating, irrigation and drainage, processing and other operations can not achieve the full capacity of the tractor during the operation of the unit. Increasing the throttle at this time will increase the fuel consumption and reduce the economic benefits. And the engine running at the maximum speed will also accelerate the engine friction