1. Check the oil level of the front and rear axles;

2. Clean the air filter (replace the filter element if necessary);

3. Clean the oil, diesel, and gearbox oil filters;

4. Measure the tire pressure to be 0.27~0.31Mpa;

5. Check whether the welding seam of the working device and the front and rear frame is cracked;

6. Check the tightness of the generator and fan belts.