How to solve the problem of electric forklift not being able to lift freely

Jan 2nd,2025 215 Views

The main operations of electric forklifts are horizontal transportation, palletizing, loading and unloading of goods. However, many problems may occur during use, such as the inability to lift flexibly. What is the reason?

1. Vibration will occur when the gantry is greatly raised. This may be because there is gas in the hydraulic cylinder, and the load lift method can be used several times to exhaust the pipe. It may also be that the hydraulic transmission system is leaking oil. Repair and disassemble the skeleton seal and hydraulic cylinder. snow plow

2. If a self-descent occurs under load, it may be due to electromagnetic induction or manual hydraulic reversing valve. This product may have scrap stuck or the sealing ring may be worn out, causing air leakage. It may also be due to the oil pipeline or If there is oil leakage from the fuel pipe joint, you can disassemble the hydraulic seal and clear the valve. 3 tons diesel forklift

3. When lifting, the speed is slow or cannot be lifted. This may be due to the lack of gear oil, which must be added. The pressure of the speed control valve is insufficient and must be adjusted. The gasoline pump is too damaged and causes air leakage, which must be removed. Change. If the gear oil temperature is too high for a long time, it will cause mildew and viscosity decrease. The gear oil must be replaced.

4. When the electric forklift is driving and there is abnormal noise from the driving wheel, it may be that there is dirt in the grease, and the grease needs to be replaced at this time. It may also be that the rolling bearings are too damaged and need to be replaced.

5. The brake system of the electric forklift fails. It may be that the friction plates of the brake system are worn out or the control circuit is not disconnected. Check the automatic control system.

6. The electric forklift cannot move forward or reverse. The reasons may include: insufficient battery power, loose driving control toggle switch, tightening screws, damage to the motor control board, reduced sensitivity of the DC contactor, locked brakes, or automatic adjustment. If the gap between the wheel brake pads and the drive motor system are abnormal, replace them immediately.

7. The working time of the electric forklift battery is short and cannot be charged. The reason may be that the lithium battery electrolyte of the battery is insufficient. Add pure water or lead-acid battery water immediately. The battery is aging and charging. The battery cord plug is loose and the battery is seriously damaged. Replace the battery.

8. The battery charger is not working. If the charging head does not display any information, it may be that the circuit breaker is burned out. If the charging head switch power light is on, the internal circuit breaker is short-circuited or the resistor is short-circuited, and the voltage regulator tube is damaged.

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