Manual reverse drilling accident drilling tools have high labor intensity, and improper operation may easily cause personal injury. In order to prevent accidents, drilling tools for reverse drilling should be operated by machine (shift) leaders or skilled workers, with clear division of labor, unified command, unified action and mutual cooperation, and irrelevant personnel are not allowed to stay at the scene. It is forbidden to stand within the rotation range of manual reverse drilling tools and levers. When reversing by manpower, you should not directly grasp the lever, but tie it with hemp rope with sufficient strength.

Safety training manual for geological drilling engineering

What are the safety regulations for manual reverse drilling?

When using a drilling rig to reverse drilling tools, the operator should use the lowest gear and rotate slowly at low speed. The number of turns of the wire rope wound on the pull rod is appropriate, and the operator should concentrate on pulling, releasing and gradually exerting force. Corroded steel wire rope shall not be used as the steel wire rope of the reverse nozzle, and it is forbidden to use iron wire or other ropes instead.

Safety training manual for geological drilling engineering