TM 55-2835-208-23
2-18 REPAIR COMBUSTOR HOUSING (AVIM) (Continued)
2-18
d .
Note
If crack is longer
than one inch, level
edges and tack weld
every 0.5 inch.
Weld
crack
u s i ng
welding
rod
( E 1 8 ) b y
i n e rt
gas
shielded
method
( T M 5 5 -
1500-204-25/1).
S t a r t
welding from ends of crack
and
work
toward
c e n t e r .
K e e p w e l d s f l a t o r s l i g h t ly
convex on welded side.
2.
R e p a i r c r a c k s i n b r a z e d j o i n ts
(2) as follows:
a . W i r e b r u s h o r b u f f r e p a i r
area until bright and clean.
b. Apply
brazing
f l u x ( E 1 2 )
generously to repair area.
c . H e a t a r e a e v e n l y w i t h n e u -
t r a l f l a m e f r o m g a s t o r c h
while
a p p l y i n g a
small
f i l l e t o f
brazing
a l l oy
(E11).
d . R e m o v e f l u x r e s i d u e w i th
hot water.
3.
Replace
s t a r t
bypass
v a l ve
boss thread inserts if damaged
(TM 55-1500-204-25/1).
INSPECT
FOLLOW-ON MAINTENANCE:
None
END OF TASK
2-39
