红旗-100、C-80等履带式推土机,方向杆的操纵是用同一种增力器,在增力器正常作用的情况下,其操纵力只需5公斤就可以拉动手拉杆,但一个修理完好的增力器总成,安装到车上,往往因调整不当,而表现出种种故障,以至不起助力作用,对其会出现的各种故障原因分析和排除方法叙述如下: 一、两边方向杆都很费力,但同时拉动时却较省力。其原因是两方向推杆调整过长,改变了滑阀应处的正常位置,在不拉方向杆时,两滑阀油路都已接通或将近接通,拉某一方向杆时,油泵来的压力油经另一滑阀油道从活塞 Track-type bulldozers such as Hongqi-100 and C-80 are used with the same type of booster. When the booster works normally, the operating force is only 5kg to pull the pullbar, but a repair is needed. The intact power booster assembly, installed on the vehicle, often shows various faults due to improper adjustment, so that it can’t afford the help function. The analysis and exclusion methods of the various faults that occur will be described as follows: 1. Both directions The rods are very laborious, but at the same time they are more labor-saving. The reason is that the two-way push rod adjustment is too long, which changes the normal position of the slide valve. When the direction rod is not pulled, the two slide valve oil circuits have been connected or are nearly connected. When pulling a certain direction rod, the oil pump The pressure oil comes from the piston through another oil passage