Course Overview

This course consists of four lessons designed to provide training for the multi-craft training needs of process and manufacturing facilities. Topics include purpose and function, types of limit switches, safety considerations, and replacement compatibility. Additional topics include possible malfunctions, maintenance and troubleshooting, solid state, torque and geared, and lever-actuated switches.

Course Objectives

• Define the purpose, function, and types of limit switches.
• Explain and visually identify each of the limit switches.
• Describe safety considerations when working with limit switches.
• Know how to ensure that a replacement switch will work correctly.
• Describe the internal function of a lever-actuated limit switch and its function in a control circuit.
• Maintain, troubleshoot, repair, and adjust a lever-actuated limit switch.
• Describe the possible malfunctions of a lever-actuated limit switch.
• Describe the function of solid state limit switches.
• Maintain, troubleshoot, repair, and adjust solid state limit switches.
• Describe the possible malfunctions of solid state limit switches.
• Explain the internal function of a geared limit switch and torque switch in a control circuit.
• Maintain, troubleshoot, repair, and adjust solid state limit switches.
• Describe the possible malfunctions of a geared limit switch and torque switch.
• Troubleshoot, maintain and repair these switches.

Included Modules

1. Overview: This is the first lesson in the Limit Switches Course. This lesson describes limit switches, how they work, how to recognize them, and typical applications in which they are used.
2. Lever-Actuated: This is the second lesson in the Limit Switches Course. This lesson describes limit switches, how they work, how to recognize them, and typical applications they are used in.
3. Solid State: This is the third lesson in the Limit Switches Course. This lesson describes solid state limit switches, how they work, how to recognize them, and typical applications in which they are used.
4. Torque and Geared: This is the final lesson in the Limit Switches Course. This lesson describes geared limit switches and torque switches. This lesson also discusses maintenance, troubleshooting, and adjustment requirements for these switches.