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有少数东方红—150拖拉机在用高四档起步时,会发出“咯啦”的响声。正常行走时响声消失。有的同志误认为是传动箱内发响,不敢大胆使用,害怕打坏齿轮。经我们几次拆检发现,传动箱内各轴转动灵活,齿轮啮合正常,没有异常现象。为什么发响呢?试车后发现主离合器发热,原因在于离合器接触不良。由于高四档起步需要的驱动力矩大,引起离合器打滑,故造成低档起步不发响,高四档起步发响。
A small number of Dongfanghong -150 tractor in the fourth gear started, will be issued “slightly lapel ” sound. When normal walking noise disappeared. Some comrades mistook it for making noise in the transmission box and did not dare to use it for fear of breaking the gear. Several times we disassembled found that the transmission shaft rotation flexible, gear meshing normal, there is no abnormal phenomenon. Why it sounds? After the test found that the main clutch heat, the reason is that poor clutch contact. Due to the high fourth gear needed to start a large driving torque, causing the clutch slippage, it caused the low-grade start not sounding, the fourth gear started sounding.