TM 10-1670-287-23&P  0014 00  16. Rigger check number 5.  INSTALLING THE AUTOMATIC ACTIVATION DEVICE  WARNING  CAUTION  CAUTION  NOTE  NOTE  0014 00-43  Change 2  Install the automatic opening device as follows:  1.  Install the Automatic Ripcord Release (AR2) as follows:  When attaching the power cable assembly to the AR2, always verify  proper engagement of ball end of power cable with piston rod of  AR2 by looking through transparent plastic cable seal retainer. Cable seal retainer and power cable seal must be present to ensure  correct seating of power cable ball. If ball is not engaged with piston  rod or if cable seal retainer is missing, actuation of AR2 will fail to  pull ripcord pins, which may result in death of parachutist.  Finger tighten the power-housing retainer. Do not use pliers or  other tools that will over tighten power-housing retainer.  Ensure container is handled with care when transporting container  with the AR2 installed. Failure to do so may result in damage to  equipment.  Make sure the AR2 is cocked, and the JUMP/OFF switch is set to  OFF.  Prior to installing the AR2 in the ripcord release pocket, remove  the storage cable and piston rod cap, if present. Save these  components for future use. 