shoulder; it should be 5.06±0.03 inches. If not, remove the roll pin and adjust the clevis as required. With the piston in the fired position, verify the clearance between the bottom of the actuator housing and stop washer on top of the clevis is 0.09±0.06 inches. To release the piston from its fired position, with two 1/8-inch rods inserted into the locking dog holes, pry down on the two rods to spread the locking dogs and pull the piston out of the fired detent position. Move the piston to the full down position by pulling out on the manual detent pin, and continue pulling downward on the piston. Ensure that there is a clearence of 0.19 ± 0.06 inch between the firing controls disconnect actuating arm and the shelf top with the harness release disconnect actuating arm in the disconnect position. With a push-pull spring scale, pull slowly upward on the harness release handle until the manual detent pin engages the harness release acutator piston. The force required to lock the piston should not exceed 40 pounds. Remove the spring scale and continue pulling upward on the harness release handle, ensuring that the handle has a minimum of 0.125 inch of over travel from the manual detent position. To check the firing control disconnect pin travel (fig. 6-15, callout B), insert a 1/8-inch diameter rod in the hole at the top of the firing control disconnect assembly. Mark an index line on the rod at the exact top of the hole in the firing control disconnect assembly. Pull upon the harness release handle (in overtravel position) and ensure that the rod does not exceed 3/16 inch of downward travel from its original up position. If travel exceeds 3/16 inch, adjust the lock pin to this tolerance. This test simulates firing control disconnect pin travel, and excessive travel could prevent seat ejection as a result of overtravel movement of the harness release handle. This causes unseating of the firing control disconnect fitting and release of the ejection control cables. Reset the harness release handle into the holder and pull the manual detent pin to reset the harness actuator. Verify that the lap belt and shoulder harness retaining pins protrude through the seat structure a minimum of 0.06 inch, not including the tapered end of the pin. EMERGENCY SURVIVAL EQUIPMENT The emergency survival equipment (fig. 6-18) accompanies the crewman during ejection or ditching. It can sustain life, aid rescue during emergency conditions, and provide support and comfort to the crewmen during normal operation. The survival equipment consists of all equipment used after seat/man separation from the ejection seat. Parachute NES-12E The parachute is designed for use in rocket catapult ejection seats. The parachute is a backpack-type assembly that normally opens automatically, but it can be deployed manually by pulling the conventional rip cord D-ring. The parachute is connected to the RSSK-8A-1 survival kit by two nylon harness straps running from the bottom of the parachute to the back portion of the survival kit. Survival Kit RSSK-8A-1 The survival kit is connected to the ejection seat by lugs on the back of the survival kit, which engage detents in the survival kit lug retaining pins. The retaining pins are integral parts of the harness-release bell crank assembly. The survival kit is a two-piece fiber glass container with top and bottom sections. A foam pad cushion is positioned on top of the kit to provide comfort for the crew member. A manual kit-release handle on the right side of the kit provides for separation of the two survival kit halves and release of the survival gear. The top half contains the emergency oxygen bottle, which is automatically actuated by a cable attached to the aircraft structure as the ejection seat moves up the guide rails during the ejection sequence. The oxygen bottle is normally used for high- altitude ejections, but it can be manually actuated, if the normal oxygen supply fails, by pulling the emergency oxygen lanyard located on the inboard side of the front thigh support of the survival kit. The bottom half of the kit contains a life raft, a radio transmitter (if installed), and a survival kit bag. The life raft is folded and stowed in the front section of the kit. A self-contained pneumatic bottle automatically inflates the raft upon separation from the kit. A battery-operated radio transmitter is automatically switched on during the ejection sequence by an aircraft- attached lanyard. The survival kit bag is a zippered bag stowed next to the life raft. The bag contains dye markers, seawater desalter, sponge, two escape and evasion kits, rations, sunburn ointment, signal distress flares, signal mirror, 6-22