Mini-lesson · 5 min read
Guard interlocks: the switch that knows the door
Tongue, coded, and locking interlocks, what door sag does to each, and why the spare actuator in a toolbox is the most dangerous part on the machine.
This mini-lesson is part of the course
Readings are scored to your account. The Check Yourself questions at the end of each one count toward your certificate. Sign in to read this one and keep the record.