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一台ZL15型轮式装载机,需解决行走制动不灵的问题。据驾驶员反映,该机自购入时行走制动就不理想,一是制动踏板太沉、踩不动;二是制动不灵,只慢不站。根据顾客要求,我们对该机进行试车、检查和分析后,发现以下不足:一是脚踏液压制动的总泵不带助力装置,制动力与人脚施于踏板的力成正比;车轮制动器为钳盘式,每个轮子有4个缸径为φ50mm的分泵,单靠人脚踏的力量明显不够。二是分泵上未设置放气阀,使系统无法排气,保养不便。
A ZL15 wheel loader, to solve the problem of walking brake is not working. According to the driver reflected that the aircraft from the purchase of brake when walking is not ideal, first, brake pedal too heavy, not moving; Second, braking is not working, only slow stop. According to customer requirements, we test the aircraft, inspection and analysis, and found the following deficiencies: First, the master cylinder hydraulic brake without power-assisted device, the brake force and the human foot exerted on the pedal force is proportional to; wheel brakes For the caliper disc, each wheel has 4 cylinder diameter φ50mm of the sub-pump, alone, the strength of the pedal is obviously not enough. Second, the branch pump is not set on the deflation valve, the system can not exhaust, maintenance inconvenience.