 TM 10-1670-287-23&P  0014 00  12. A 20-pound weight attached to the center of the ripcord grip (care shall be exercised not to impose an  impact load) shall readily withdraw ripcord grip from pocket.  13. When ripcord grip has been removed from pocket, carefully remove the 20-pound weight.  14. Attach a 27-pound weight to ripcord grip. Slowly remove your hand. The weight shall readily activate  the parachute by withdrawing the ripcord pin from locking loop.  15. Re-close the container IAW the procedures detailed above. Reinsert the ripcord pin-threading pin  through eye of power cable.  It is not necessary to start the pack process over again if the same  initial packer is conducting the Ripcord Pull Tests. If a different  Parachute Rigger has taken over any of the tasks associated with  the Ripcord Pull Tests, then a complete re-pack of the main  parachute is required.  Re-closing the container after the ripcord pull test does not  constitute a repack toward the normal repack cycle (120-days).  The following ripcord pull test and the stroke simulator test are  performed on all MC-4 systems each time the main parachute is  initially placed in service and when the main closing loop is  replaced.  Change 2  0014 00-36  NOTE  NOTE  NOTE 