How should mobile lift be maintained移动式升降机要怎样保养
1. Matters needing attention in homework
Mechanical work should be gentle and smooth, mechanical work should avoid rough, or it will inevitably produce impact load, making frequent mechanical failures, greatly shortening service life. The impact load generated during operation, on the one hand, the mechanical structure parts of the early wear, break, and break, on the other hand, the impact force in the hydraulic system, the impact force will also cause damage to hydraulic components, oil seal and high-pressure oil pipe joint and rubber tube pressure premature failure oil leakage or detonation, overflow valve frequently action oil temperature rise.
2. Prevent air and water from invading hydraulic system
At atmospheric pressure and temperature, the hydraulic tubing contains air with a capacity ratio of 6-8%. When the pressure is reduced, the air will be free from the oil, and the bubble bursts will cause “cavitation” of the hydraulic components and generate noise. A large amount of air entering oil will aggravate the phenomenon of “cavitation”, increase the compressibility of hydraulic oil, make the hydraulic oil unstable, reduce the work efficiency, and make the actuator crawl. In addition, air will also make hydraulic oil oxidize, accelerating oil deterioration.
3. Select suitable hydraulic oil
Hydraulic oil plays the role of cooling, transferring pressure, lubricating and sealing in the hydraulic system. Improper selection of hydraulic oil is the main reason for early failure and decline of durability of the hydraulic system. Hydraulic oil should be selected according to the name specified in the operation manual. In special cases, substitute oil type should be used, and its performance should be the same as that of the original brand. The hydraulic pressure of different brands can not be mixed, in case the hydraulic oil produces chemical reaction, performance changes. Cream – white, dark brown, smelly hydraulic oil is bad oil, can not be used.
4. Prevent solid impurities from mixing into hydraulic system
Clean hydraulic oil is the life of hydraulic system. Hydraulic system has many precision components, some have damping holes, some have gaps and so on. If the solid impurities invade, it will cause the pull of the precision parts, the card, youdao block and so on, which will endanger the safe operation of the hydraulic system. General solid impurity intrusion into the hydraulic system means: oil tools are not clean; Impure hydraulic oil; Hydraulic component chip removal; Careless refueling and maintenance.
5. Maintenance and cleaning of hydraulic oil
The cleaning oil must use the same hydraulic oil as the brand used in the system. The oil temperature is between 45 and 80 degrees. The impurities in the system should be carried away with a large flow as much as possible. The hydraulic system should be cleaned more than three times, after each cleaning, when the oil is hot, all the system. Clean the filter after cleaning, replace the filter core and add new oil.