Apollo 1500 Linear Actuator System (816 arm & 636 Control Board) Installation Reference Manual December 21, 2020 17:46 Updated How to install the Apollo 816 linear actuator and 636 control board system InstallRefManual_1500LA_MX4725.pdf 4 MB Download Related articles Apollo 816 Linear Actuator Installation Reference Manual Apollo Linear Actuator Spec Sheet Apollo 816 Linear Actuator 120 Degree Install Instructions M-Bar/L-Bar Installation Reference Manual (White operator 2019 and later) How do I replace a proximity switch on a 816 actuator?