TM 10-1670-287-23&P  0039 00  UNIT MAINTENANCE  MC-4 RAM AIR FREE-FALL PERSONNEL PARACHUTE SYSTEM  SNAP FASTENERS  THIS TASK COVERS:  INITIAL SETUP:  Tools Equipment Condition  Personnel Required  Materials/Parts  REPAIR REPLACE NOTE 0039 00-1  x Repair  x Replace  Anvil, Chuck Fastener (Item 1, WP 0063 00)  Chuck (Items 6/7, WP 0063 00)  Die (Items 8/9, WP 0063 00)  Holder, Die Fastener (Item 20, WP 0063 00)  Key, Socket Head Set (Item 22, WP 0063 00)  Knife, Hot Metal (Item 24, WP 0063 00)  Mallet, Rawhide (Item 27, WP 0063 00)  Pliers, Large, Diagonal Cut (Item 32, WP 0063 00)  Sewing Machine, Medium-Duty (Table 1, WP 0015 00)  Shears (Item 39, WP 0063 00)  Lay out on packing table or other suitable area.  92R (10) Parachute Rigger  Fastener, Snap, Button (Item 18, WP 0076 00)  Fastener, Snap, Eyelet (Item 19, WP 0076 00)  Fastener, Snap, Socket (Item 20, WP 0076 00)  Fastener, Snap, Stud (Item 21, WP 0076 00)  Thread, Nylon, Size E (Item 43/44, WP 0076 00)  Webbing, Nylon, Type II (Item 48, WP 0076 00) Snap fastener repair is limited to reseating which will be accomplished using the applicable procedures  and tools prescribed in the replace procedures detailed below.  A snap fastener that is defective or cannot be reseated will be replaced with a serviceable item from  stock. However, if only one part of a fastener is defective, such as the socket or stud, just that particular  portion of the fastener assembly requires replacement. Replace a damaged snap fastener as follows:  Reinforcement is not authorized on the inner top main container  closing flap or in the area of the left riser static line snap fastener.  1.  Original snap fastener removal.  a.  Cut crimped edge of applicable snap fastener assembly part at three or four points with diagonal  cutters.  b.  Using a suitable type tool, pry back fastener crimped edges and remove applicable defective  fastener parts.  2.  Reinforcement of original snap fastener area. If fabric area around original snap fastener is damaged,  repair area by applying a reinforcement patch to the outside of the material. Use a 1-inch square of  seared type II nylon webbing. 