Common fault handling of 3.5-ton lithium-ion forklift, basic investigation method of battery electronic control

Due to the characteristics of environmental protection, high efficiency and energy saving, 3.5-ton lithium-ion forklifts are more and more widely used in the warehousing and logistics manufacturing industry. It is inevitable to encounter some minor problems in daily operation. Mastering the basic battery electronic control troubleshooting method can quickly solve some faults and reduce downtime. Next, it starts from two parts: common faults and corresponding basic troubleshooting.

Abnormal power display is one of the more common minor problems of 3.5-ton lithium-ion forklifts. For example, it shows full power but loses power quickly after driving, or the power display fluctuates greatly. In such cases, you can first do a basic inspection of the battery appearance to see if the battery pack shell is damaged and leaked. If so, you need to contact a professional in time to deal with it, and do not disassemble it yourself. Then check whether the battery terminal is loose and oxidized. If it is oxidized, you can gently clean the surface with a dry soft brush, and then re-tighten the wiring bolts. Note that you should disconnect the main power switch of the forklift before operation to avoid the risk of electric shock. Finally, you can observe the status of the charging indicator light. If the indicator light is not on after connecting the charger, check whether the connection between the charger and the socket and the forklift charging port is firm.

Power interruption is also a problem that may be encountered by 3.5-ton lithium-ion forklifts, such as sudden loss of power during driving, the vehicle stops driving, or the card is weak when lifting the fork. First, it is still necessary to confirm whether the main power switch is closed. Sometimes the vehicle bumps may cause the switch to loosen and disconnect. Then check whether the emergency stop button of the vehicle has been touched and pressed by mistake. After the emergency stop button is pressed, all power will be cut off. Gently rotate the button to make it pop up and restore. If the total power supply and emergency stop are normal, you can check whether the electronic control interface is loose and damp. If it gets damp, you need to disconnect the power first, dry the water vapor at the interface with a clean dry cloth or a hair dryer cold air gear, and then reconnect.

It should be noted that the above methods are only suitable for basic troubleshooting and simple fault handling. If the problem still exists after treatment, or if you encounter complex failures involving battery cores and electronic control cores, you must contact qualified professional maintenance personnel for maintenance. Do not try to disassemble or modify the battery electronic control system by yourself to avoid potential safety hazards or damage to equipment. In daily use, regular cleaning and standardized operation of 3.5-ton lithium-ion forklifts can also effectively reduce the occurrence of failures.