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1989年4月,我县公主屯镇东塔村一机手,从我公司购买1台4125A型发动机。8月,将其安装在底盘上后,主发动机不易起动,而起动着后,无论供油手柄放在什么位置,转速都没有变化。我们赶到现场后,首先起动着小起动机,然后很容易地起动着了主发动机。小油门着火时,不冒烟,但一增加供油,烟就增多,转速仍没有变化。我们分析是空气滤清器到进气门这一段进气道被堵塞。经检查,发现在进气管内(与预热管之间)有一团报纸,将其清除后,工作正常了。
In April 1989, a player of Dongta Village, Princess Tunzhen, our county, purchased a 4125A engine from our company. In August, the main engine was not easy to start after it was mounted on the chassis, and after starting it, the speed did not change no matter where the fueling handle was placed. When we got to the scene, we started the small starter first and then started the main engine easily. Small throttle on fire, do not smoke, but an increase of fuel supply, the smoke will increase, the speed has not changed. Our analysis is the air filter to the intake valve this section of the intake is blocked. Upon examination, it was found that there was a newspaper in the intake pipe (between the preheating pipe) and it was working properly after it was cleared.