Daily troubleshooting of manual hydraulic carrier

Daily troubleshooting of manual hydraulic carrier

Most users do not pay attention to the normal operation rules when using the manual hydraulic carrier, which leads to the failure of the pallet truck, but we do not know what the reason is. When we know the reason why the fork of the pallet truck does not lift, we will get it in time To deal with, the manual hydraulic truck plays an irreplaceable role in the whole handling process, so we must pay attention to maintenance in the process of use, so that our work efficiency can be greatly improved. The following are the common faults and solutions of the manual hydraulic truck:

1. Fork of manual hydraulic truck cannot be lowered

Cause analysis: the anti pressure valve is not adjusted, the piston rod position of the oil cylinder is offset, and the parts are damaged or deformed due to unbalanced load

Solution: drop positive pressure relief valve, replace piston rod or cylinder, repair or replace relevant parts

2. When there is no pressure relief, the fork slides down

Cause analysis: there is air in the hydraulic oil, there are impurities in the hydraulic oil, the anti pressure valve is not adjusted properly, and the seal is damaged

Solution: remove the air, replace the clean hydraulic oil, adjust the anti pressure valve, and replace with new seals

3. The fork of the carrier does not rise

Cause analysis: there are impurities in the hydraulic oil, the relief valve is not adjusted properly, and there is air in the hydraulic oil

Solution: replace the clean hydraulic oil, adjust the pressure relief valve, and remove the air in the oil pump

4. Oil leakage of carrier

Cause analysis: seal wear or damage, parts cracking or wear

Solution: replace the new seal and check the updated parts

5. Lifting capacity not up to standard

Cause analysis: there are impurities in the hydraulic system, and the check valve cannot be closed

Solution: change the pure hydraulic oil

6. Crawling without load

Cause analysis: the door clip is deformed, the sealing ring of the oil cylinder is screwed too tightly, so that the resistance of the plunger rod is too large

Solution: adjust the adjustable screw of gantry or adjusting roller shaft, and adjust the upper nut of oil cylinder

7. Slow lifting or crawling

Cause analysis: leakage of hydraulic system, aging or damage of sealing ring, air in hydraulic system

Solution: tighten the adjustable screw, replace the sealing ring and remove the air. In order to prolong the service life of the equipment,

We should do the following:

1. The manual hydraulic stacker should be used on hard and flat road to prevent collision with steel plate, corner material and other materials damaging the wheel. It is not necessary to use fork to impact the goods pile. During the lifting process, people should not stand nearby, and the goods should be put down for maintenance and adjustment.

2. When using the hydraulic stacker truck to work in other occasions or conditions, it is necessary to operate carefully and correctly to ensure the safety of operation.

3. The troubleshooting of manual hydraulic stacker truck is related to the condition of whether the stacker truck can work continuously. We often learn the common troubleshooting methods of manual hydraulic stacker truck.

4. Before using the equipment, it is necessary to check and maintain the vehicle, focusing on whether the wheel and mandrel, door clamp introduction, joint screw and bearing position can rotate flexibly, and clean and add lubricating oil in time.

5. It is not allowed to carry people on the forks of the stacker. People are not allowed to stand under the forks. In the process of handling, the height of the forks from the ground shall not be higher than 300 mm. The goods shall be placed between the measuring forks, and the single fork shall not be stressed. The position of the center of gravity of the goods shall be strictly controlled.

The user is responsible for the proper maintenance and operation of the wheel of the pallet truck during use, so as to avoid the damage of the wheel or equipment due to improper operation or improper use of the equipment. The wheel or equipment will be damaged if it is driven at high speed on rough road or loaded at noon

Wheel: visually inspect the wear condition of the wheel. The poor rotation of the wheel is related to the fine red, rope and other sundries. The house property should be able to block the winding of these sundries. The caster can avoid unstable rotation. After checking and replacing the wheel, it is necessary to ensure that the locking gasket and nut are used It is forbidden to install the axle, because the loose axle will cause the friction between the spoke and the nail, and the wheel and bearing should be replaced in time to avoid the economic loss caused by shutdown. Caster: if it is used frequently, if the movable steering is too loose, it should be replaced immediately. If the rivet of Lunjiao center is fixed by nut, it must be firmly locked. If the movable steering can not rotate freely, check whether there is corrosion or stolen goods at the ball. If it is equipped with fixed caster, it must be ensured that the bracket has no bending sign.

Lubrication: the manual platform truck needs to add lubricating oil regularly. The casters and movable bearings of the pallet truck can only be used for a long time. The high quality lubrication is applied to the friction parts of the axle, the sealing ring and the ball bearing, which can reduce the friction and make the rotation more flexible. Under normal use, the lubrication should be carried out every six months.