东风_4型机车抱轴承油尺的作用主要是便于运用人员确认油位,及时补油,保证抱轴承润滑正常。但由于油尺丢失,给确定油位和机车保养带来困难。机车运行时,外部灰尘顺着加油口进入油腔,降低了油的清洁度。时间一长,油质变差,抱轴承毛线污脏,吸油能力降低,恶化了抱轴承的润滑条件,以致发生热轴乃至化瓦事故。 Dongfeng _4 type locomotive bearing oil dipstick main role is to facilitate the use of staff to confirm the oil level, timely charge to ensure that the normal bearing lubrication. However, due to the missing oil dipstick, it is difficult to determine the oil level and maintain the locomotive. When the locomotive is running, external dust enters the oil chamber along the fuel filler opening, reducing the cleanliness of the oil. Over time, poor oil quality, bearing dirty wool bearings, reduced oil absorption capacity, deteriorating the bearing lubrication conditions, resulting in the occurrence of thermal axis and tile accidents.