During driving, every leaf spring will produce elastic deformation alternately, which will cause friction between blades, so as to buffer load vibration and impact, and improve vehicle ride comfort.

If Baotou beiben accessories spring lubrication is not good, the leaves will have the dry friction, causing the blade surface scratches, wear plate spring, not only affects the vehicle ride comfort, but also easily lead to Baotou beiben fracture parts leaf spring. In addition, the leaf spring is often attacked by mud water, and the blade is easily rusty and damaged. To this end, a certain mileage of the car, should be in the north of Baotou heavy steam fittings steel spring added between the filling of the moon.

In order to reduce the maintenance workload, it can be lubricated without disassembling the steel plate spring. The method is as follows: jack lifting frame, load unload leaf spring, the leaf spring outside clean, loosen the U shape bolt nut, loosen the central bolt nut, with a simple tool to plate open, with the nozzle gun to inject grease between the graphite plate, should not be brought into the mud and sand, iron plates.