How is the Duff-Norton rotary limit switch mounted on an actuator unit?
It is suggested that the actuator unit be purchased with the limit switch factory mounted. The rotary limit switch can be field mounted by following the instructions found in this book under “Rotary Limit Switch.” In most cases, the switch is mounted to the worm using the worm flange retainer bolts. This switch cannot be directly mounted on 1/4- to I-ton actuator models.
