TM 10-8415-210-13&P5-8. STITCHES, SEAMS AND STITCHING. (CONT)(2)Thread Ends. All thread ends shall be trimmed to a length of not more than Y4 inch.(3)Bartacking. Bartacking shall be 3/8 ± 1/16 inch in length and 1/8 ± 1/32 inch in width and shall contain 28stitches. Bartacking shall be free from thread breaks or loose or tight stitching.5-9. PATCH REPAIRS IN BUTYL MATERIAL.This task covers: a. General Repair Instructionsb. Repair Punctures Less than % inch Diameterc. Repair Tears up to 3 inches Longd. Repair Tears over 3 inches Long and Holes Greater than ¼ inch in Diametere. Patching InstructionsINITIAL SETUPTools:Maintenance Kit (Appendix B, Section III, Item 2)Roller, Hand (Appendix B, Section III, Item 3)Materials/Parts:Adhesive, Carboline (Appendix F, Item 3)Alcohol, Isopropyl (Appendix F, Item 4)Cloth, Nylon, Butyl Rubber CoatedTalc, Tech (Appendix F, Item 21)a.GeneralRepairInstructions. Component areas containing holes or tears may be repaired by the application oftwo superimposed patches of similar material to both sides of the item. Areas containing surface defects that do notextend through the material may be repaired by the application of a single patch to the outside of the item. All patchesshall be made from serviceable material obtained from maintenance kit, bulk material, or salvaged items. A patch shallbe smoothly and evenly adhered to the material so that when subjected to flexing action, will show no lifting at the edges,cracking, flaking or removal of the cement or patch. The repaired area shall show no stiffening or tackiness which wouldeffect the serviceability of the component. In no case shall patches be applied to seams. Repair of fabric coatingdefects by methods other than patching is not authorized.b.RepairPuncturesLessthan1/2inchDiameter. Use of pre-cut patches obtained from maintenance kit isauthorized. Patch shall be at least 1/2 1/4 inch in diameter.c.RepairTearsupto3inchesLong. Tears up to 3 inches in length, but 1/2 inch or less in width may be repairedusing patches cut at least 1 inch larger than the damaged area on all sides.d.RepairTearsover3inchesLongandHolesGreaterthan1/2inchinDiameter. Repair of tears longer than 3inches or holes greater than 1/2 inch diameter is not authorized.e.PatchingInstructions.(1)Obtain a patch as required by paragraphs a., b., c. or d. above.5-4
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