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东方红—70、75推土机、拖拉机,其液压泵动力分离机构使用一定期限后,由于联轴节、可动联轴节分离爪啮合面和可动联轴节定位销(五挡变速叉销钉)的磨损,工作中便出现可动联轴节向后滑移而跳爪的相互撞击现象,不能正常传递扭矩,使液压泵不工作。 而有些机手把分离机构的操纵手柄、接合杠杆轴、接合叉连同其上的可动联轴节定位销
Dongfanghong -70,75 bulldozers, tractors, the hydraulic pump power separation mechanism using a certain period of time, due to the coupling, the movable coupling separation claw engagement surface and the movable coupling positioning pin (five gear shift pin) Of the wear and tear, the work will move backward sliding joints and the phenomenon of clasping clash each other, not the normal transmission of torque, so that the hydraulic pump does not work. While some of the hands of the handle to the separation mechanism, the lever axis of engagement, together with the fork on the movable coupling pin