1. When the excavator goes up, the driving wheel should be in the back and the arm bar should be in the top. When the excavator goes down, the driving wheel should be in the front and the arm bar should be in the back. Slow down when downhill, no speed change on the way.

2. the excavator should not be in a hurry to turn around. If the curve is too big, it should be taken a turn.

3. When the excavator rotates, the rotary clutch is used to cooperate with the brake of the rotary mechanism to rotate smoothly, and the sharp rotation and emergency braking are forbidden.

4. excavators are strictly prohibited from carrying out maintenance, maintenance and fastening work. In case of abnormal sound, peculiar smell and excessive temperature rise, check and stop immediately.

5. the bucket must not turn or walk before leaving the ground.

6. When the crawler excavator moves, the boom should be placed in the forward direction of walking, and the bucket should not exceed 1 meter from the ground.

7.when the arm top pulley is maintained, overhauled, lubricated and replaced, the boom should fall to the ground.

8. When digging, it is not advisable to eat too deep every time, and the bucket should not be too strong, so as to avoid damage to machinery or cause overturning accidents. When the bucket falls, pay attention not to be too fast, so as not to cause the lower frame to be unstable.

9. Personnel who cooperate with excavators in bottom cleaning, leveling and slope repairing must work outside the revolving radius of excavators. If the excavator must work within the revolving radius, the excavator must stop turning and turn off the pilot switch before it can work. At the same time, the crew on board should cooperate closely to ensure safety.

10. no vehicle or pedestrians should be allowed in the range of excavator loading. If unloading to the car, should wait for the car to stop, after the driver leaves the cab, can turn the bucket, unloading to the car. When excavators are turning, they should avoid crossing the top of the cab as far as possible. When discharging, the bucket should be lowered as far as possible, but it is also important to avoid collision with any part of the vehicle.