Crawler drill Note:

1, feel free to check the water pipe, fitting bolts, nuts are are firm;

2, pay attention to check wind motor lubricant condition;

3, when the face when in the water, opening with the diameter of the bit, insert the drill pipe, drill pipe out of the water 1-2 meter to prevent mud and rock slag fell into the hole,

4, drilling operations off when refused to reverse this afternoon so as not to drill into the hole;

5, to stop work in a short time, to give a small amount of air to avoid sediment into drill hammer, if long time stop drilling, should upgrade the impactor 1-2 metres from the hole fixed;

Above is using crawler drilling machine, need to be aware of things, do you understand now? If you still have questions, please feel free to inquire.