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The previous two issues have already introduced the operation of the uphill and downhill slopes. Today, I will talk about the vertical digging operation of the excavator. What preparations do you need to make before the operation? What should you pay attention to?
1. Preparation before the homework
Let me talk about the preparatory work before the vertical digging operation. First, the boom pressure of the excavator should be set to a low pressure to prevent the vehicle body from floating up; secondly, the departure position of the vehicle body is limited according to the working surface.
2. Vertical drop mining operation
What is the correct operation step for the excavator to vertically lower the excavation work?
(1) The composite operation of the boom drop + arm extension + bucket extension pushes the falling stone below the work surface.
(2) If the soil below the vertical is hard, the soil under the working surface can be removed when the bucket is excavated.
3. Precautions during operation
(1) As shown in the figure, in order to ensure emergency retreat when the bottom of the foot collapses, remember that the guide wheel is in front.
(2) As shown in the figure, the excavator working position should be carried out as far as possible in the above range. As much as possible to control the oblique position mining, the excavator is prone to twisting load, too large range will affect the service life.
(3) Before carrying out the work, it is necessary to confirm whether there is a crack under the car body. If there is a crack, do not let the front part of the car body enter the cracked place. In addition, use the tip of the bucket to push the clods at the crack to the slope.