How to lift platform, hydraulic system maintenance and maintenance

For hydraulic mechanical lifting equipment, machine normal working well or not is the direct factors about enterprise can normal production. In terms of hydraulic lifting equipment, the normal operation of hydraulic system is one of the main sign of good technical condition.

And qualified hydraulic oil hydraulic system is the guarantee of reliable operation, the correct maintenance of hydraulic system can not only reduce the cost for repair and maintenance, and can use for a long time to create greater value for the enterprise. How to lift platform for the systematic maintenance and maintenance?

Choose a suitable hydraulic oil

Hydraulic oil in the hydraulic system plays a transfer pressure, lubrication, cooling and sealing effect, the hydraulic oil choice is inappropriate early malfunction of hydraulic system and the main reason for decline in durability. Should press random "instruction manual" in the regulation of hydraulic oil brand choice, special circumstances need to use the generation of oil, to its performance is the same as the original brand performance. Different type of the hydraulic oil cannot be mixed use, to prevent the hydraulic oil to produce chemical reaction, the performance change. The hydraulic oil is dark brown, ivory, have peculiar smell metamorphic oil, cannot use.

To prevent solid impurities mixed with hydraulic system

Clean the hydraulic oil is the life of the hydraulic system. There are a lot of precision coupling in the hydraulic system, some have damping holes, some have crack, etc. If the solid impurity invasion will cause a precise accidentally strain, hairpin, oil blockage, endanger the safe operation of hydraulic system. General way of solid impurity invasion of the hydraulic system are: hydraulic oil is not clean; Oil tools impurity. Careless refuel and repair and maintenance; Hydraulic components desquamation, etc. Can prevent the invasion of solid impurities system from the following several aspects:

Come on in

The hydraulic oil must be filtered, reliable refueling tools should be clean. Not in order to improve the filling speed and remove the fuel tank filler filter. Come on personnel should use clean gloves and overalls, in case of solid impurities and fiber impurities fell into oil.

When the maintenance

Remove the hydraulic tank of fuel cap, filter cover, test hole, hydraulic tubing parts, cause the system oil when exposed to avoid dust, remove the parts need to thoroughly clean before they can open. Such as removing the hydraulic tank of fuel cap, remove the cap around the soil, loosen the cap, remove residual impurities in the joint area (not rinse in order to avoid water seeping into the tank), confirmed after cleaning to open the cap. If you want to use wipe material and the hammer, should choose not to drop fiber impurities wiping materials and hit the surface adhesion of rubber hammer. Hydraulic components, hydraulic hose to clean, with a high wind blow dry after assembly. Choose the authentic of packing sound filter (the inner packing is damaged, though the filter in good condition, may also not clean). Clean the filter oil change at the same time, the installation filter application before wiping materials carefully clean dirt at the bottom of the filter shell.

Hydraulic system clean

Cleaning of the same oil must be used with the system of the hydraulic oil, the oil temperature between 45 ~ 80 ℃, with heavy traffic as much as possible to take away the impurities in the system. Hydraulic system to clean more than three times repeatedly, each time after washing, it all while oil heat release system. After completion of cleaning cleaning filter, replacement of the new filter new oil filling.

To prevent air and water invasion of the hydraulic system

In the atmospheric temperature of hydraulic oil contained in volume ratio is 6 to 8% of the air, when the pressure to reduce the air will be free from oil, make the hydraulic components "cavitation bubbles burst, noise. A lot of air into the oil will cause the phenomenon of cavitation, the hydraulic oil compressibility increases, work is not stable, reduce work efficiency, as well as the components of job "crawl" in. In addition, the air can make the hydraulic oil oxidation, accelerating the deterioration of oil. Prevent the air invasion should pay attention to the following:

After 1, maintenance and oil change according to random "instruction manual" regulation rule out the air in the system and to normal operation.

2, the oil level of hydraulic oil pump suction pipe mouth shall not reveal, suction pipe line must be properly sealed.

3, oil pump drive shaft seal should be good, should pay attention to change it "lips" authenticity should be used when the oil seal oil seal, cannot replace with "single lip seal", because "single lip seal only one-way seal oil, do not have the function of sealing gas. This unit has a after overhaul, liugong ZL50 loader hydraulic oil pump consecutive "cavitation noise, automatic rising fuel tank oil level, and the fault, the query of the hydraulic oil pump repair process, found that for the hydraulic pump drive shaft oil seal caused by the misuse of" single lip seal.

To prevent water invasion of the hydraulic system

Oil which contains excess moisture, can make the hydraulic components rust, oil emulsification metamorphism, lubricating oil film strength is reduced, to accelerate the mechanical wear and tear. In addition to the maintenance to prevent moisture intrusion, but also pay attention to the storage barrel need not when, to tighten the cover, best placed upside down; Water content of oil should be filtered, after repeated every secondary filter to replace a drying filter, without special instrument to detect, oil droplets can be on the hot iron plate, no vapor emitted and immediately combustion can refill.

Mechanical homework to soft and smooth

Mechanical work should avoid violent, otherwise will impact load, make frequent mechanical failure, shorten service life. Homework when the impact load, on the one hand, the mechanical structure early wear, broken, broken, impact pressure in the hydraulic system on one hand, shock pressure and can make the damage of hydraulic components, oil seal and high pressure hose connector and hose pressure part of premature failure of the oil or tube, overflow valve frequent oil temperature rise.