1. Before the excavator enters the road surface with water or wades across the river, it must fully master the road condition and bearing capacity under the water to prevent the machinery from falling into.

2. When the excavator is parked on a slope, the bucket is strictly prohibited to start, all control levers are in the neutral position, and wedge blocks are placed on the rear of the crawler or tires to stop and brake.

3. The excavator can not make transverse driving or rotary motion.?When the bucket does not leave the ground, it is strictly prohibited to lift the excavator with the bucket rod or the bucket cylinder.

4. In order to prevent unbalanced load or damage to the carriage, it is strictly forbidden for the bucket to pass over the top of the cab of the earth-moving truck. When unloading the soil to the earth-moving truck, the height of the bucket should be lowered.

5. In order to make the excavator run smoothly and avoid rollover, the parking position and walking route of the excavator should be kept at a sufficient safe distance from the road, ditches, and foundation pits.