1.

Carry out tooling wear, correspondent test and inventory of related tools in accordance with safety regulations, and make preparations before operation;

2.

According to the work plan, carefully check the track lines along the way to ensure the safety performance of the track;

3.

According to the feedback from other departments, focus on checking the target area to improve work efficiency and avoid affecting subway operation;

4.

During maintenance, safety protection measures should be set in the area, and grounding wires should be connected at both ends of the area to avoid safety accidents caused by electrification;