1.故障现象我单位1台TY160型推土机,作业时出现推土无力现象。挂低速挡行走时,速度明显低于挡位速度,挂高速挡则无法行走。2.查找故障点该型推土机动力传输途径为发动机→变矩器→变速器→转向离合器→最终传动装置。首先,在空挡状态启动发动机,将发动机提速和减速,反应都很快,由此排除发动机有故障。其次,挂入前进I挡使推土机行走,在行走过程中踩下脚制动踏板,推土机随即实现制动,而放松脚制动踏板 1. Symptom I unit TY160 bulldozers, push the soil appear weak phenomenon. Hanging low-speed gear walking, the speed was significantly lower than the gear speed, hanging high-speed gear can not walk. 2. Find the point of failure This type of bulldozer power transmission path for the engine → torque converter → transmission → steering clutch → final drive. First of all, starting the engine in the neutral state, the engine speed and deceleration, the reaction is fast, thus ruining the engine is faulty. Second, linked to the advance I block to make bulldozers walking, walking in the process of depressing the foot brake pedal, bulldozers then brake, and relax the foot brake pedal