From what side shall cars not be coupled?

Cars should not be coupled from the wire side to ensure safety and proper operation during the coupling process. The wire side refers to the side of the train car where essential components, such as electrical wires and pneumatic hoses, are located. Coupling from this side can pose a risk of damage to these critical components, which could lead to malfunctions. It also increases the potential for injury to workers who might be in close proximity to these connections.

Coupling from the wire side is avoided because it can complicate the process and introduce hazards associated with the electrical and air supply systems. This practice promotes a safer work environment and ensures that the train cars maintain their functionality without risking damage to their equipment. Other sides may be more suitable for coupling operations, thereby streamlining the process and enhancing safety protocols on the job site.