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ZIG-ZAG SEWING
DIRECT SUPPORT MAINTENANCE MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY   MARKING AND RESTENCILLING

TM-10-1670-272-23P Parachute Personnel Type: 35-Foot Diameter MC1-1B Troop Back Parachute Assembly NSN 1670-00-598-0751 Manual
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TM 10-1670-272-23&P                                                         0034 00 DIRECT SUPPORT MAINTENANCE MC1-1B/MC1-1E TROOP BACK PARACHUTE ASSEMBLY   SEARING AND WAXING 0034 00-1/(2 Blank) THIS TASK COVERS:    Searing    Waxing INITIAL SETUP: Tools Pot, Melting, Electric (Item 24, WP 0044 00) Knife, Hot, Metal (Item 14, WP 0044 00) Materials/Parts Beeswax (Item 2, WP 0057 00) Wax, Paraffin (Item 59, WP 0057 00) Personnel Required 92R(10) Parachute Rigger Equipment Condition Unpacked. NOTE 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 the MC1-1B/MC1-1E parachute, 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. 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. WAXING    The fraying or unraveling of cotton or nylon tape, webbing, and cord length ends may be prevented by dipping ½-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.   END OF WORK PACKAGE







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