TM 10-8400-203-23
13-4. ORGANIZATIONAL MAINTENANCE INSTRUCTIONS – Continued
d. Snap Hook and Thong Assembly.
(1) Inspect. Check to see that the thong and snap hook are present and that snap hook functions properly.
(2) Replace. Replace wire lock snap (11, Fig. 13-2) when damaged or missing, with new snap hook and thong.
13-5. DIRECT SUPPORT MAINTENANCE INSTRUCTIONS
a. Rucksack Cover.
(1) Grommets. Replace missing or damaged grommets (5, Fig. 13-3) with new ones. Refer to FM 10-16 for
installation procedures.
(2) Tie string. Replace missing or damaged tie string on camouflage cover. Cut the tie string (2, Fig 13-3)
30 inches (76.2 cm) long, double it, and sew 1 inch (2.54 cm) of the loop in hem with 14 inches (35.6 cm)
hanging free at each end. Tie overhand knots in ends of the string.
b. Frame. Repair rucksack frame (Fig. 13-4) by spot-welding broken reinforcements (2) and crossplates (4) to the
frame body (1) as attached in original constructions. For welding instructions see TM 9-237. If sleeve (3) is
loose, crimp tightly with pliers to insure against frame spreading.
Personnel engaged in welding should be equipped with welding goggles or
hoods proper for type welding being done, and adequate precautions taken to
prevent injury to the welder and other personnel.
c. Rucksack Body.
(1)
(2)
Fabric. Patch tears and rips on the rucksack pouch bottom (12, Fig. 13-1) with 12.29 ounce (348 g) cotton
duck. For all other parts of pouch body (7), pouch flap assembly (2), and all pockets, use 9.85 ounce
(279 g) cotton duck. For basic patching and sewing procedures, see FM 10-16.
Sewing. All sewing will be by machine, using stitch type 301 per Federal Standard 751. Maintain proper
thread tension to prevent loose stitches and backstitch thread breaks not less than 1 inch (2.54 cm) at
each break. Use size FF thread for sewing leather frame support and shoulder strap to pouch back, center
reinforcement and leather reinforcement; frame supports together; and billets, chapes and webbing
reinforcement straps, sewing six stitches per inch. For all other sewing, use F thread, sewing eight
stitches per inch.
Change 1
13-9
