一台ZL50C型装载机,修后变速器的变速油压只有0.7 MPa,与规定值(1.1～1.5MPa)相差太远。 该机在修理前,变速油压比较正常,3个挡位的压力均为1.3 MPa,而且还比较稳定。这次维修的主要原因是,机械动力严重不足。在拆检的过程中,发现超越离合器严重失效。原因找到以后,就没有再对变矩器进行分解。为了确保修复后机器的动力得到保证,还将原来已经使用了10个月的变速泵进行了更新。在装配前,除更新了所 A ZL50C-type loader, modified gearbox transmission oil pressure is only 0.7 MPa, and the specified value (1.1 ~ 1.5MPa) is too far away. Before the machine was repaired, the transmission oil pressure was normal, and the pressures in the three gears were both 1.3 MPa, which were still relatively stable. The main reason for this maintenance is a serious lack of mechanical power. In the process of dismantling, it was found that the overrunning clutch seriously failed. When the reason is found, there is no further decomposition of the torque converter. In order to ensure that the power of the repaired machine is guaranteed, the variable speed pump that has been used for 10 months has also been updated. Before the assembly, in addition to the updated