Scissor lift run-in period is prone to small problems
1, overloading due to the impact of new work
machine parts processing, assembly and adjustment and other factors, its friction surface roughness, the smaller the area of contact with the surface, the uneven surface pressure situation. The machine during operation, the convex portion of the friction surface of the parts fitted to each other, down to the metal wear debris, and as an abrasive, continue to participate in the friction, the more accelerated wear of the mating surface of the part. Therefore, components likely to cause run-in period (particularly fitting surface) of wear, wear faster. At this time, if overload operation, it may cause damage to the components, resulting in premature failure.
2, with the gap due to poor lubrication
new assembly of parts is small, and due to assembly and other reasons, it is difficult to ensure the uniformity of the gap with the lubricant (grease) of the friction surface is not easy to form a uniform film, to prevent wear . Thereby reducing the lubrication performance, resulting in the early parts of abnormal wear. Will cause serious friction with precision surface scratches or bite phenomenon, leading to failure.
new processing and assembly of components, there is a deviation of the geometry and with the size of the initial use, due to shock, vibration, etc. alternating load, and the effects of heat, deformation and other factors, coupled with excessive wear and other reasons , easy to produce original tightening loose parts.
4, due to the occurrence of leakage
loose parts, vibration and heat of the machine, the machine's sealing surface and pipe fittings, etc., there will be leakage; portion of casting, machining and other defects in the assembly debugging difficult to find However, due to the vibration during the operation, impact, this flaw is exposed, the performance of the drain (permeability) (water). Therefore, run-in period is prone to leakage.
5, due to operational errors and more
understanding of the structure of the machine, the performance is not enough (especially the new operator), likely due to operational errors caused by malfunction, or even cause mechanical accident.
Information from: http://www.liftramp.com