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制动灯是安全信号装置,也是交通公安部门路检路查的重要项目,务必要保持齐全有效。制动灯开关在制动灯回路中是易损零件,为提高行车的安全和可靠性能,应及时检查与更换非常重要。由于解放牌CA141型汽车采用双管路制动系统,因此在前后制动管路中各设一只制动灯开关,分别装在制动阀的上、下腔上,两制动开关为并联连接.如图1。这种制动灯回路的优点是,当前后车轮任一管路发生故障(如漏气等),使一路制动失效,另一路制动工作时,制动灯能发出制动信号,又如两只制动灯开关,其中有一只损坏,另一只制动灯开关也能发出制动信号。但是我们在维修保养CA141汽车时经常发现,上腔制动灯开关先损坏,未能发现,不能及时更换,等到下腔上的制动灯开关损坏而造成制动灯不亮时,才一并换下上腔上的制动灯开关(安装在制动阀的侧面不易更换),或是只要制动灯亮,就以为不需要检查制动灯开关,这样做,就失去了CA141汽车制动灯回路的优点,所以要定期检查制动灯开关的好坏,及时以更
Brake light is a safety signal device, is also an important project of traffic police department road inspection, be sure to keep complete and effective. The brake light switch is a consumable part in the brake light circuit. It is very important to inspect and replace in time to improve the safety and reliability of driving. As the liberation of CA141-type cars with dual-line brake system, so in the front and rear brake lines each set a brake light switch, respectively, mounted on the brake valve on the lower chamber, the two brake switch in parallel Connect as shown in Figure 1. This brake light circuit has the advantage of any one of the front and rear wheels of the pipeline failure (such as air leakage, etc.), so that all the way brake failure, the other way brake work, brake lights can issue a brake signal, and Two brake lights switch, one of which is damaged, the other brake light switch can also issue a brake signal. However, we often found in the maintenance of CA141 car, the upper chamber brake light switch first damaged, failed to find, can not be replaced, until the lower chamber brake light switch damage caused by the brake light does not light, only Replace the brake light switch on the upper chamber (mounted on the side of the brake valve is not easy to replace), or as long as the brake light, you do not need to check the brake light switch, so do not have to lose CA141 car brake lights The advantages of the circuit, so to regularly check the brake light switch is good or bad, in time to more