TM 55-1520-240-23-4
5-66.2
REPAIR TITANIUM NOSE CAP CRACKS (AVIM)
(Continued)
5-66.2
16.
Prepare area for bonding as follows:
a.
Cover repair with Teflon-impregnated fabric
(E170) (14). Fabric should overlap repair 3
inches on each edge.
b.
Cover Teflon-impregnated fabric (14)
with fiberglass cloth (E132) (15). Secure
fiberglass cloth with masking tape (E388)
(16).
c.
Apply sealing tape (E396) (17) around repair
area.
d.
Wrap two layers of fiberglass cloth (E132)
(18) around end of aluminum tube (19).
Secure cloth to tube with masking tape
(E388) (20).
e.
Connect tube (19) to vacuum source.
f.
Position tube (19) on fiberglass cloth (15)
near the blade trailing edge. Wrap two layers
of sealing tape (E396) (21) around tube (19)
where it crosses sealing tape (17).
g.
Press tube (19) into surrounding sealing tape
(17) to form air tight seal. Secure tube to
blade. Use masking tape (E388) (22).
h.
Cover repair area with polyvinyl sheet (E284)
(23). Press sheeting onto sealing tape (17)
to form air tight seal.
NOTE
Spread polyvinyl sheeting smoothly.
Keep wrinkles at a minimum to avoid
air leaks.
5-315
