一台ZL50轮式装载机在工地铲运沙石料过程中突然行走无力,在平地上空载可缓慢行走,但只要轮子受一点阻力(如石头或枕木挡住轮子)或上坡油门加再大也无法行走。使用单位修理工吊下变速箱解剖后发现:液力变矩器涡轮后滚珠轴承磨散,导致一、二级涡轮和导轮磨损严重;超越离合器(单 A ZL50 wheel loader in the construction of sand gravel suddenly walking weakness, the ground can be slowly carried over the load, but as long as the wheels by a little resistance (such as stone or sleepers blocking the wheel) or uphill throttle Can not walk. Using the unit mechanic to lift the gearbox, it was found that the rear ball bearings of the torque converter turbine were worn away, resulting in serious wear of the primary and secondary turbine and guide wheels. The overrunning clutch