Details four-wheel mobile hydraulic scissor lift platform: four-wheel mobile hydraulic scissor lift platform is extensive use of aerial vehicles and special equipment. Its scissor mechanical structure, so the lift from a higher stability after liter removable lift supply manufacturers, large platform and a higher carrying capacity 20 m moveable lift, so altitude greater operating range, and for many people simultaneously. It enables high-altitude operations more efficient and safer. Is widely used aerial lift equipment. Mobile lift routine maintenance: 2) to prevent contamination of the hydraulic system of solid clean hydraulic oil is the life of the hydraulic system. Hydraulic system has many precision coupling, some damping holes, and some have gaps and so on. If the solid impurities invasion will result in precision coupling strain, card issuers, oil duct blockage, endangering the safe operation of the hydraulic system. Generally solid impurities invasion pathways hydraulic system: hydraulic oil unclean; refueling tool unclean; refueling and repair, maintenance accidentally; scaling and other hydraulic components.