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1台配装4WG180型变速器的XG958型装载机累计使用1882h后,当挂行驶F3与F4挡、作业N3与N4挡及倒退R3挡时,出现行走缓慢现象,同时出现传动油压力低和报警灯点亮。1.故障分析该装载机的传动系统采用电控动力换挡变速器。其控制系统如附图所示,主要由液压泵、滤清器、压力控制阀、电磁阀、挡位阀和离合器等组成。当操纵换挡手柄换挡时,手柄输出的电信号传递给控制电脑,控制电脑经过识别后,向相关挡位电磁阀输出24v电压,控制相关电磁阀使挡位阀打
A set with 4WG180 type transmission XG958 loader cumulative use of 1882h, when the hanging drive F3 and F4 block, work N3 and N4 block and reverse R3 block, the phenomenon of slow walking, while there is low transmission oil pressure and warning lights Lit up 1. Failure Analysis The loader transmission system uses electric power shift transmission. The control system shown in the figure, mainly by the hydraulic pump, filter, pressure control valve, solenoid valve, gear valve and clutch components. When the shift handle shift control, the handle output of the electrical signal is passed to the control computer, the control computer after identification, to the relevant gear solenoid valve output 24v voltage control solenoid valve so that the gear valve to fight