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. 

## CAUTION 

## CAUTION 

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. 

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. 

i. After repeated use, dents will appear in the cadmium plating. Rotate the rings periodically to reduce the localized plating damage. 

