一台ＺＬ５０Ｃ装载机的主要故障现象是：变速器挂空挡或空载行驶时，一切正常；铲上物料时，装载机驱动无力，加大油门后，转速反而明显下降，且冒出大量黑烟，即通常所说的犯“憋”。 由于该机在空挡或空载行驶时一切正常，所以开始时我们认为是变速器离合器打滑，但在拆检变 A ZL50C loader main fault phenomenon is: transmission neutral or no-load driving, everything is normal; shovel the material, the loader drive weakness, increase the throttle, the speed but significantly decreased, and the emergence of a large number of black smoke, That is commonly referred to as “hold back.” As the aircraft in the neutral or no-load running everything is normal, so at the beginning we think that the transmission clutch slip, but in the demolition of inspection change