TM 10-8400-203-23
21-7. REPAIR AND MAINTENANCE OF VEST, TACTICAL LOAD BEARING; FIELD PACK, LARGE,
WITH INTERNAL FRAME; PACK, PATROL, COMBAT AND VEST, 40MM GRENADE–Continued
(13) Replacement of Torso Track Channel and Yoke. When the yoke does not move freely along the track
channel after the screws have been loosened, or is damaged so that it cannot serve its intended
function, it must be replaced. To replace the torso track, remove stitching along the damaged torso
track panel. Trim any raveling yarns from from the field pack back panel. Stitch the new torso track to
the pack back panel using type 301 stitching, size F yarn, and six to eight stitches per inch (2.54 cm).
To replace the yoke, remove stitching that holds the yoke to the shoulder straps. Trim any raveling
yarns from the shoulder straps. Stitch the new yoke to the shoulder straps using type 301 stitching
size F yarn and six to eight stitches per inch (2.54 cm). Slide new yoke onto the track from the bottom
and secure with friction screws.
Table 21-1. Stitching
ITEM
Vests
Field Pack
Vests
Field Pack
OPERATION
General
General
Barracking
Barracking
STITCH TYPE
301
301
THREAD SIZE
E or F
F
E
E
Table 21-2. Slide Fastener Lengths
STITCHES PER INCH
7 to 11
6 to 8
3/4 inch (1.91 cm); 42
1 inch (2.54 cm); 42
2 inches (5.08 cm); 80-84
1/2 inch (1 .27 cm); 28
3/4 inch (1.91 cm); 42
1 inch (2.54 cm); 42
2 inches (5,08 cm); 80-84
ITEM
FUNCTION
LENGTH
Patrol Pack
Main Compartment Closure
17 1/4 inches
(42.26 cm)
Field Pack
Bottom Assembly
15 inches
(36.75 cm)
21-18
