What is the cause of crawling in the hydraulic system
The motor parts are lubricated by lubrication and the friction resistance is large. The center line of the oil cylinder is not parallel to the guide track or the inner hole of the cylinder liner wears away. The above five aspects are crawling of the main reasons that may lead to the moving parts, mainly is to distinguish the cause of the motion mechanism or hydraulic actuators causes of crawling, narrow the scope of the possible, then targeted further search.
The oil pump suction pipe is sealed and the fuel tank is not enough to absorb the air. 2, when the motion seals are newly assembled, the assembly is too tight, such as oil cylinder piston rod to carry V type seal, if the pressure is too tight, the oil cylinder will crawl. Three, piston rod bend deformation.
It may be that the pump has not been able to leak or pump enough, or it may be a pipe passing by a long or blocked road, and the oil pump is pumping. First check the fuel tank. Check the line again. If it is a pump problem, the pump sound must be abnormal. After all, it is easy to find out how to do it
