TM 9-2610-200-14 2-52 CHAPTER 2. CARE, MAINTENANCE, AND INSPECTION (Con't) SECTION III.  UNIT MAINTENANCE (Con't) 2-31. TIRE REPAIR PROCEDURES -TEMPORARY STRING REPAIR.   This Task Covers:   Repair   Initial Setup: Equipment Conditions:   Tire mounted on rim and inflated to normal operating pressure .   Tools/Test Equipment: Awl, scratch (Item 4, Appendix B). Hand file (Item 20. Appendix B). File handle (Item 28. Appendix B). Shears (Item 47, Appendix B) Materials/Parts:   Pneumatic tire puncture repair kit (Item 72, Appendix C) a.  REPAIR   WARNING Any outside-to-in tire repair, like string repair is considered only a temporary fix to provide get home capability. A permanent and complete repair includes inspection of the tire for further damage, filling voids in the injured area and applying the appropriate patch or patch/plug combination from the inside of the tire outward. Failure to completely repair a tire may cause the tire to eventual fail, which could result in equipment damage, injury or death. 1.   Using an awl, gently and gradually probe injury. Do not force awl abruptly through tire. Note direction of penetration through tire and possible accumulation of foreign substances.   2.   If foreign substances are present. use a hand file to clean out the injury .   NOTE Needle length may be adjusted for larger and thicker tires.   3.   Some pneumatic puncture repair kits come with an injector tool that has an adjustable needle for inserting the string compound.  If your injector tool is adjustable adjust needle length to a minimum of 2 inches (5.1 cm). Non-adjustable injector tools are standard size and will also work with just about any truck tire size or smaller. INJECTOR TOOL         NEEDLE