Why can't the electric hydraulic truck lift up and down?

When we use storage equipment on a daily basis, it is inevitable that we will encounter equipment failures. If you encounter a situation where the electric hydraulic truck or stacker cannot execute the lifting command but can still walk, it is recommended that you focus on observing whether the contactor of the pump station is pulled in. If it is pulled in, it may be a mechanical fault, otherwise it is judged to be an electrical fault. At this time, we can check the handle lifting switch, pump station contactor, lifting limit switch and motor and other components.

Next, let's take a look at the reasons why the all-electric stacker can only electric pallet lift truck but cannot walk. Let's first rule out other fault phenomena of the electric hydraulic truck. When the equipment is greatly lifted, there is vibration. It may be that there is gas in the oil cylinder. We can use multiple loads and lifting methods to exhaust. There is also a possibility that the hydraulic system sees oil. Here, it is necessary to repair and replace the oil seal and hydraulic pressure cylinder. If there is a phenomenon of sliding under load, it means that the oil pipeline or oil line joint sees oil, and the seal must be replaced; or the electromagnetic, manual reversing valve, check valve is stuck with waste or the sealing ring is worn, and the valve group needs to be cleaned. Replace the seal.

If the lifting speed of the electric hydraulic truck is very slow or cannot be lifted, it may be that there is not much oil in the fuel tank, and hydraulic oil needs to be replenished; it may also be the relief valve If the pressure is not enough, it needs to be adjusted; or because the oil pump, solenoid, manual reversing valve, check valve, safety valve is worn or the seal is damaged, it needs to be replaced. In addition, we should also remind everyone that the hydraulic oil temperature is too high for a long time, which leads to the deterioration of the hydraulic oil, the decrease of the viscosity, and the leakage.

The abnormal noise caused by the driving wheel may be caused by hard dirt in the lubricating oil or excessive wear and damage of the bearing, which needs to be replaced. If the braking system is not sensitive, it may be that the control circuit is not disconnected or the friction pads of the braking system are worn out. Check the control system. If it is completely unable to lift, it is recommended that you check whether the electric door lock is open or damaged, and whether the battery has power. If the power is insufficient, please replenish the power as soon as possible.

If the storage handling equipment fails, it is recommended to seek professional maintenance and inspection from the electric hydraulic truck manufacturer, which is more reliable. The above is the relevant content about the failure of the electric hydraulic pallet truck.

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