What can cause a switch to bind?

Binding in a switch can occur when there are obstructions or mechanical issues that prevent smooth operation. Dirt and debris accumulation can interfere with the moving parts, causing friction or blockage. Mechanical failure, such as a broken component or misalignment, can equally prevent the switch from functioning correctly. These factors lead to binding, which hinders the switching action necessary for train operations. Proper maintenance and cleaning are essential to ensure that switches operate without binding, highlighting the importance of regularly checking for debris and potential mechanical failures.