Mainly due to the following reasons:
(1) excessive use of emergency braking. Driving in mountainous areas, downhill use of emergency braking is likely to result in the rupture of the front plate of Baotou North heavy truck. Because of the brake, most of the vehicle load forward, from the front plate spring bear, so easy to cause the fatigue and fracture of the steel spring. It is recommended to use exhaust brake with less emergency braking.
(2) the front wheel brake adjustment is too tight, if the rear wheel braking performance is poor or sudden problems, take emergency braking, so that the front plate spring is too much impact and fracture.
(3) the road surface is not good, overloading, speeding, so that the front plate spring impact force is too large, easy to cause fracture.
(4) Baotou North heavy truck parts before the spring plate due to frequent overload, use for a long time, flexibility and rigidity, fatigue and fracture.
(5) the replacement of the quality of the steel plate spring, the blade bending is not up to standard, the steel plate material is not good or heat treatment is not good, resulting in uneven stress and fracture.
In order to prevent the first spring plate, two pieces of broken, it is recommended to adopt the following methods:
(1) check and maintain on time to ensure good lubrication of Baotou North heavy truck parts spring.
(2) correct adjustment of vehicle braking.
(3) the use of emergency braking, engine exhaust brake.
(4) turn the corner, turn not too fast.
(5) when the steel plate is replaced, it should be of high quality and ensure its compliance with the rules. It is best to use the steel spring produced by Shandong spring factory and Chongqing spring factory.
(6) load uniform, not biased, not overload.
(7) in uneven road, downhill, should control the speed.