Technical Help & Resources Choose a category below to access our library of How-To Videos or browse our comprehensive Technical Reference Materials, including 3D drawings, FAQs, and product literature. How To Videos View All How-To Videos Setting a Rotary Cam Limit Switch (LS8) Setting a Rotary Cam Limit Switch (LS7) Mounting a Rotary Cam Limit Switch (LS8) Choosing a Rotary Cam Limit Switch – LS7 vs. LS8 Successfully Remove a Ball Nut from a KFTN jack Replace the Ball Bearings into a Ball Nut Drawings, FAQs & Reference Guides View Drawings and Illustrations Both 2D and configurable 3D drawings are available as well as elected cutaway illustrations. View FAQs Find the answers to many technical questions. View Quick Reference Guides A quick comparison of the various product lines. View Glossaries Common terms related to the screw jacks and actuators. View Literature Catalogs, Brochures and Operation & Maintenance Manuals. View Systems Common system layouts.