The maintenance and upkeep of gearbox gears are crucial for ensuring the normal operation of the gearbox and extending its service life. Here are some maintenance and upkeep points to pay attention to:

1. Regularly replace transmission oil: Transmission oil is the key to lubricating and cooling transmission gears. Regularly changing the transmission oil can maintain good lubrication of the gears and reduce wear.

2. Check the transmission oil level: Regularly check the transmission oil level to ensure that it is within the normal range. If the fluid level is too low, the transmission oil should be added or replaced in a timely manner.

3. Use appropriate transmission oil: Use transmission oil types and specifications that comply with the manufacturer's recommendations, avoiding the use of inappropriate oils to avoid affecting transmission performance.

4. Avoid sudden acceleration and braking: Sudden acceleration and braking will increase the load on the gearbox gears, leading to increased gear wear. These bad driving habits should be avoided.

5. Pay attention to transmission noise: Transmission noise may be a signal of gear wear or poor lubrication. If there is abnormal noise, the gearbox should be checked in a timely manner.

6. Regular inspection of the gearbox: Regularly inspect the gearbox, including checking the gears, bearings, seals, and other components, as well as checking the color and odor of the gearbox oil.

7. Avoid overloading: Overloading can increase the load on the gearbox gears, leading to premature wear of the gears. Overloading driving should be avoided.

8. Avoid prolonged idling: Prolonged idling can cause an increase in transmission oil temperature, affecting the performance of the transmission oil. Long term idling should be avoided.

9. Pay attention to transmission temperature: Excessive transmission temperature may damage gears and other components. If abnormal transmission temperature is found, the vehicle should be stopped immediately for inspection.

10. Timely maintenance: If the gearbox malfunctions, such as oil leakage or difficulty shifting, it should be repaired in a timely manner to avoid more serious damage.

By following the above maintenance and upkeep points, the good condition of the gearbox gears can be ensured, the service life of the gearbox can be extended, and driving safety and comfort can be improved.