New 816 Linear Actuator Limit Adjust Caps November 23, 2022 14:59 Updated Informs about change to push-in caps (from screw-in cap & gasket) for 816 linear actuator limit adjust screws.. TechBulletin_New-816-Limit-Caps_D1144.pdf 500 KB Download Related articles How do I get my 816 extension tube back to factory position? Apollo 816 Linear Actuator Installation Reference Manual Apollo 1500 Linear Actuator System (816 arm & 636 Control Board) Installation Reference Manual How do I Replace my 816 Actuator's Encoder(Smart Sensor) Apollo 816 Linear Actuator Part Diagrams