The main issues that need to be paid attention to when drilling with a backpack drill are as follows:

First of all, choose the hole surface, connect the water valve to the bucket to pressurize and pass water, adjust the water volume to the proper flow, and ignite the fire. The drill rig is inclined to step on the bottom of the drill pipe with the arch of the foot, and the foot is buckled inward as much as possible. Prevent slippage during the opening process.

Secondly, the drilling speed of the hole should not be opened too fast, first open a crescent socket, and gradually straighten the drill pipe quickly.

Finally, drill down vertically, and do not straighten the rig at once to avoid breaking the drill bit. Requirements: Kong Zheng, hole circle, continuous core.