The video provides a guide on the proper use of spring clamps in terminal connectors, emphasizing the importance of using the correct gauge of field wires, which should be between 14-28 guage. It discusses the options for preparing stranded wire, including twisting, soldering, or using a ferrule. Viewers are instructed to insert wire only into the field wiring holes and not the tool itself, using a 2.5mm flat blade screwdriver or the Opto 22 tool to operate the clamp. Proper tool insertion is crucial to avoid damage, and the flat blade tip must be parallel with the clamp hole side before inserting the wire.