As a new type of electric logistics handling equipment, all-electric trucks have already occupied a place in the vast market. If you want to replace the internal combustion forklift, it will take time. With the increasing number of companies using electric pallet trucks in the market, there are more and more concerns about the failures of electric pallet trucks in use. How to effectively avoid or eliminate the hidden troubles has become a concern for business owners.
According to such problems, we have specially collected and summarized some problems that are easy to occur in the application process of electric trucks and how to solve and eliminate such problems in the communication and discussion with the company's engineering and technical personnel.
Fault phenomenon and troubleshooting method:
I. Trembling when lifting
1. Lifting the air in the cylinder can be solved by the load multiple times and the lifting method.
2. The hydraulic system leaks oil, repairs and replaces the oil seal and hydraulic cylinder.
Second, self-decreasing when there is load
1. The oil pipe or oil pipe joint has oil leakage, and the seal can be replaced.
2. Electromagnetic, manual reversing valve, check valve has dirt stuck or seal ring wear, resulting in internal leakage. Treatment: Clean the valve block and replace the seal.
Third, the lifting speed is too slow or can not start
1. The fuel tank is short of oil and needs to be filled with hydraulic oil or replaced completely.
2. The pressure of the relief valve is insufficient and readjusted.
3. The oil pump is excessively worn, resulting in internal leakage and needs to be replaced.
4. Electromagnetic, manual reversing valve, check valve, safety valve wear or seal wear and aging, need to be updated.
5. The hydraulic oil temperature is too high for a long time, the hydraulic oil is degraded, the viscosity is lowered, and a leak occurs, and the hydraulic oil is replaced.
4. The driving wheel produces an abnormal sound when walking.
1. Mixing hard materials into the lubricating oil and renewing the lubricating oil
2. The bearing is excessively worn or damaged and needs to be replaced.
Five, brake failure
1. The control circuit is not disconnected and the control system is checked.
2. The brake lining is worn and replaced.
Six, completely unmoving
1. Check if the electric door lock is open or not.
2. The battery has power, the battery is low, and the battery is replenished.
Seven, can not advance or retreat
1. The battery is low and the battery is replenished.
2. The travel control micro switch is loose and the screw is locked.
3. The DC contactor is out of order, repair and replacement.
4. The electrical control board is damaged, repaired and replaced.
5. Drive motor failure, check and repair.
6. Brake the brake and adjust the distance between the brake pads of the drive wheel.
Eight, battery life is short and can not be charged
1. Insufficient battery solution, supplement distilled water or lead acid water
2. The battery is aging and replaced with a new one.
3. Poor contact in the power socket, trim the contact surface.
4. The battery is severely damaged, damaged, and replaced with a unified battery.
Nine, the charger does not work
1. The charger does not have any display, the breaker is blown
2. The charger power light is on, the internal capacitor is open or resistive, and the rectifier is damaged.
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