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Figure 2-38.  Repair Method Using a Zig-Zag Sewing Machine
Marking and Restenciling - TM-10-1670-276-23P_69

TM-10-1670-276-23P Parachute Cargo Type: 26-Foot Diameter High-Velocity Cargo Parachute NSN 1670-00-872-8109 Manual
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ARMY TM 10-1670-276-23&P AIR FORCE T.O.  13C5-29-2 NAVY NAVAIR 13-1-29 2-18.  Searing and Waxing. This task covers: a. Searing b. Waxing Tools: Equipment Condition: Knife, Hot Metal, Item 6, Appendix B Unpacked Pot, Melting, Electric, Item 11, Appendix B Materials/Parts: Beeswax, Item 2, Appendix D Wax, Paraffln, Item 40, Appendix D CAUTION Cotton tape, webbing, or cord will not be seared. NOTE Fabric materials such as cord, tape, and webbing that are cut for use in the maintenance of   parachutes   will   normally   be   heat-seared   or   dipped   in   a   melted   wax   mixture,   as applicable,   to   prevent   the   material   from   fraying   or   unraveling.      However,   In   some instances  the  preparation  of  the  material  may  not  be  necessary  and  will  be  specified accordingly. a.     Searing.    The  cut  ends  of  nylon  tape,  webbing,  and  cord  lengths  may  be  prepared  by  heat-searing  which  is performed  by  pressing  the  raw  end  of  the  material  against  a  hot  metal  surface  (knife)  until  the  nylon  has  melted sufficiently .  Avoid forming a sharp edge or lumped effect on the melted end. b. Waxing.  The fraying or unraveling of cotton or nylon tape, webbing, and cord length ends may be prevented by dipping 1/2 inch of the raw end of the material into a thoroughly melted mixture of half beeswax and half paraffin in an electric  melting  pot.    The  wax  temperature  should  be  substantial  enough  to  ensure  the  wax  completely  penetrates  the material rather than just coating the exterior fabric. 2-56







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