0011 00  TM 10-1670-287-23&P  a. Every 120 days operate the 3-ring release assembly on the ground by removing the cutaway  handle. Extract the release cable completely from the housing and disconnect the risers.  b. While the system is disassembled, closely inspect it for wear. Check the white locking loops (the  ones that pass over the smallest ring and through the grommet) to be sure they are not frayed. Do not mix the risers with different material locking loops, i.e. nylon cord and nylon fabric locking  loops. The locking loop may discolor (black) where it contacts the metal ring or grommets. This  is permissible.  c. Check the hook and pile fastener tape on the release handle and main lift web to ensure that it  adequately holds the handle.  d. Check the stitching, including that which holds the base ring to the main lift web and the hand  tacking that prevents the release housing from sliding through the keeper (this keeper is located a  few inches above the padded release handle).  e.  Take each riser and vigorously twist and flex the webbing where it passes through each ring. The  idea is to remove any set or deformation in the webbing. Failure to do this might make the  release hesitate when activated in response to a low drag malfunction such as a streamer.  f.  Check the inside of the release housing for gravel or other obstructions. Use cable to do this. Inspect the housing for dents or other damage.  Never lubricate the release cable with oil. Moisture only increases  the probability of foreign material adhering to the release cable.  Ensure Clearslip #2 ™  silicone lubricant does not come in contact  with any textile surface of the MC-4 RAPPS.  h.  Inspect the housing for dirt, dents, and debris. Any dents are cause for immediate grounding of  the system until a replacement housing is installed.  g.  Wipe the release cable with a clean, dry rag several times until all residue is removed. Ensure  cable is clean. Apply a small amount of Clearslip #2 ™  silicone lubricant to another clean dry rag  and wipe each cable several times. Allow a few moments for evaporation.  i.  After repeated use, dents will appear in the cadmium plating. Rotate the rings periodically to  reduce the localized plating damage.  CAUTION  CAUTION  Change 2  0011 00-5 