What are the common faults and treatment methods of electric forklifts?

It is inevitable that electric forklift equipment will malfunction after long-term use. What common malfunctions will occur during the use of the equipment? How can these faults be eliminated? As a Jiangsu warehouse forklift factory manufacturer, here is a summary for everyone:
1. The electrical system of the electric forklift does not work
Cause of failure: Poor wiring of electric forklift equipment power cord or faulty battery connector
Troubleshooting: Check and correct the power wiring or replace the battery connector
2. The electric forklift motor does not work
Cause of failure: a. Poor wiring of equipment power cord
                 b. Insurance line burned
                 c. Electric forklift equipment motor contactor failure
                 d. Electric forklift motor failure
Troubleshooting: a. Check and correct the power cord
                 b. Replace the fuse
                 c. Replace the motor contactor
                 d. Check and repair the motor
3. The battery indicator of electric forklift equipment does not work
Cause of failure: a. Poor wiring of electric forklift power cord
                 b. The fuse of the electric forklift equipment is burned out
                 c. The electric forklift key switch is damaged
                 d. The battery indicator of electric forklift equipment is damaged
Solution: a. Check and correct the power cord wiring
                 b. Replace the fuse
                 c. Replace the key switch
                 d. Replace the battery indicator of the electric stacker
6. Oil leakage of electric forklift equipment
Cause of failure: damaged oil seal or gasket of electric forklift
Treatment method: replace the oil seal or gasket
In the use of electric forklift equipment, the above are common faults and treatment methods.