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日本东洋搬运公司生产的TCM系列叉车采用双向双领蹄液压制动系统。长期使用后,常发生刹车油泄漏,使整车失去控制的现象。这种泄漏多因分泵密封皮碗受刹车油浸泡而膨胀老化,失去了密封功能,或者是由于分泵缸筒与活塞,在长期使用中发生较大磨损,使两者间形成较大间隙,而该间隙又会造成皮碗顶部边缘啃挤而破裂。同时由于分泵缸筒的局部偏磨,加之有较小的划痕纹理,也可导致刹车液压油外泄,使整车制动失灵,影响行车安全。
The TCM series forklifts manufactured by Toyo Co., Ltd. in Japan are equipped with two-way double-headed hoof hydraulic brake system. Long-term use, often occurs brake fluid leakage, the vehicle lost control of the phenomenon. This leak is mostly due to sub-pump seal cup soaked by the brake fluid soak and aging, loss of sealing function, or because of the sub-pump cylinder and piston, in the long-term use of greater wear and tear, so that a large gap between the two , Which in turn causes the top edge of the cup to crush and rupture. At the same time due to partial cylinder bore cylinder partial wear, combined with a smaller scratch texture, can also lead to the brake fluid leakage, so that the vehicle brake failure, affecting traffic safety.