TM 10-5430-237-12&P 0018 00 0018 00-1 UNIT MAINTENANCE   TANK ASSEMBLY REPAIR   INITIAL SETUP Tools     Special Environmental Conditions Stitcher                                                                                Dry ventilated area. Minimum ambient                (Item 2, Table 2, WP 0026 00)       temperature of 41 F (5 C).  Maximum       relative humidity of 90%. Materials/Parts     Repair Kit, Collapsible Tanks and Drums General Safety Instructions     (Item 3, WP 0030 00)         Observe all WARNINGs and CAUTIONs.         Review all Material Safety Data Sheets Equipment Conditions         (Item 15, Table 1)     Tank empty and dry       (WP 0005 00) REPAIR                                                                                         NOTE   This procedure consists of patching cuts and punctures in the tank fabric. If tank must be put back in immediate service, or materials are not available, perform emergency repairs, WP 0006 00, instead of this task. There are three methods to repair tank fabric which holds water. = Preferred Method: Patches are used both inside and outside of tank.   = First Alternate: Single patch on inside of tank.   = Second Alternate: Single patch on outside of tank. Fabric which does not hold water needs only one exterior patch. 1.  Ensure that all components of the repair kit (ROCTAD) are present before starting repair.  Refer to Table 1. 2.  Provide a smooth, firm surface (table, board, etc.) under the tank fabric to be repaired.  Position the protective sheet (Item 12, Table 1) between the area to be repaired and the adjacent tank fabric to prevent the fabric from sticking together. 3.  Use repair patch(es) (Item 1, Table 1) in a size required to overlap hole at least 2 inches (5.1 cm) on all sides. 4.  If two patches (Item 1, Table 1) are required to cover the hole, make sure the second patch overlaps the first patch by 2 inches (5.1 cm).