Subway vehicles are currently a very important means of transportation in rail transit, and their operational performance directly affects people's travel experience and safety. To ensure the safe and stable operation of subway vehicles, it is necessary to carry out maintenance and upkeep work.

The maintenance of subway vehicles mainly includes inspecting the bottom of the vehicle, including traction motor sensors, axle end grounding equipment, under car junction box braking equipment, etc; It is necessary to inspect and clean various parts, including removing dust, checking the bottom wiring, and checking the degree of wear on the outer layer of various pipelines and circuit protection. During the maintenance process of subway vehicles, maintenance personnel use tools such as chain hoists, wire ropes, and shackles to lift, disassemble, and install various components, accelerating the speed of vehicle maintenance.

It is very important to do a good job in the maintenance of subway vehicles. During the maintenance process, it is possible to timely detect vehicle problems and solve them. During the maintenance process, the vehicle components will also be cleaned to reduce wear and tear, extend the service life of the components, and ensure safe and reliable operation of the packaged subway vehicles.