TM 55-1520-240-23-4
5-66.1
REPAIR OF NOSE CAP OR EROSION CAP UNBONDING
(Continued)
5-66.1
8.
Position blade (7) so void (1) is level.
9.
Fill void (1) with adhesive (E43). Use clean 0.005
inch shim stock to work adhesive into void. Fill
deepest part of void first to prevent trapping of air.
10.
Close void (1). Press cap (4) against blade by
hand. Remove excess adhesive. Use cloth
(E120).
11.
Remove tape (5) and aluminum foil (6).
12.
Cure repair as follows:
a.
Cover the repair with peel ply (E270) (8).
b.
Cut piece of 1/4 inch thick rubber sheet
(E321) to cover repair. Position rubber sheet
(9) over peel ply (8).
c.
Apply pressure of 2 to 3 pounds for each
square-inch of repair; Apply pressure evenly
over repair. Use shot bags (10).
Blade temperature must not exceed
160ºF (71ºC). Overheating will
damage fiberglass.
d.
Cure repair at 140º to 160ºF (60º to 71ºC)
for 2 hours. Use heat lamps. Monitor blade
temperature. Use temperature indicating
strips (E413).
NOTE
If heat lamps are not available, cure at
70ºF (21ºC) for 24 hours. Shot bags
can be removed after 12 hours.
13.
Remove shot bags (10), rubber sheet (9), and
peel ply (8).
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