TM 10-8400-203-23
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20-7. REPAIR OF THE EXTREME COLD WEATHER SLEEPING SYSTEM AND INTERMEDIATE
COLD WEATHER SLEEPING SYSTEM - Continued
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(c)
(d)
(e)
(f)
Immediately cover the damaged area with the patching material previously cut in the desired size and
shape. Hold the iron on the patch for about eight seconds. Use a slight rotating or reciprocal motion
with the iron. Allow to cool for about five seconds or long enough so that the patch will not drift off
when the patched bag is removed from the table. Adjust the heating, pressing, and cooling times as
required for the specific iron being used. Check the quantity of the adhesive bond periodically as
follows and adjust heating times and temperatures of the iron accordingly.
Test a patch that has cooled for about five minutes by picking with fingers at an edge of the patch until
a tab 1/4 to 1/2 inch (0.63 to 1.27 cm) long is formed. Pull hard on the tab with fingers. A well bonded
tab will be difficult to pull off. This will indicate that iron adjustment and patch heating time is
adequate. Replace the test patch with a new patch or re-iron the old patch.
Patches larger than the iron may be applied in sections, starting at the center and completing each
section, before proceeding to the next section. Overlapping of the iron over a bonded section is
permissible.
NOTE
A small amount of patch adhesive strikethrough is not objection-
able for sleeping bag repair, provided the patch meets the check
test.
A bonded patch that has a lifted edge or that is suspected or found by the check test to be weakly
bonded may be re-ironed. Replacement is not required.
(2) Repair of rips, tears, and open seams not exceeding 15 inches (38 cm) on the Bivy Cover.
CAUTION
Any stitching/restitching/patching required to repair the
ECWSS and ICWSS bivy cover must be heat sealed before it
may be placed back into service. This will prevent water from
penetrating through the holes created during the stitching oper-
ation.
(a) Heat sealing tape is used to repair rips up to 15 inches (38 cm) missing the inner tricot knit of the Bivy
Cover and to seal restitched seams. Sealing is necessary to maintain the waterproof characteristics
of the Bivy Cover. The entire width of the sealing tape shall be hot adhesive sealed over the seam or
stitching on the inside. The Sealer, Heat Seam, Coverall, NSN 3540-01-186-7869 (Part no,
1525AS102-1, FSCM 81337) is used to apply heat and pressure to the adhesive coated seam tape
and patches in order to affaix them permanently to the outer shell cloth. All seam tapes shall overlap a
minimum of 3/4 inch (1.9 cm) at joining points. Up to three repairs totaling 15 inches (38 cm) may thus
be applied to any one cover. Seam tape may also be used to repair areas where the original tape does
not overlap sewn seams by the minimum 1/8 inch (0.32 cm) on both sides.
20-12
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