TM 55-1730-229-34
AG 320A0-MME-000
TO 35 C2-3-473-2
TM 1730-34/1
Keep nozzle in motion to prevent
(d) Position new spring ring (8)
onto duct half (9). Corner flange weld
blast from dwelling on one spot.
spring ring (8) by fusion arc welding
with gas backup using Hastelloy X filler
rod (AMS5798).
(d) Peen weld, area with glass
beads (Screen No. 100-230 (130 grit)
Class IV, Size AF or AG, Potters In-
(e) Perform fluorescent pene-
dustries, Inc., 600 Industrial Rd,
trant inspection in accordance with MIL-
Carlstadt, NJ 07072 or equivalent).
I-6866, Type I, Method A.
Clean area of glass beads.
(2) Replace damaged flange (1) as
follows:.
(e) Clean weld area with clean,
lint-free cloth dampened with acetone
(a) Hand grind weld as required
to remove flange (1). Blend excess weld
0-A-51C or methyl-ethyl-ketone
(MEK)
TT-M-261.
on dome (7).
(b) Clean area prior to welding
with clean, lint-free cloth dampened
(f) Plug weld holes through body
with methanol O-M-232 or equivalent.
(11) at resistant spot welds using
Hastelloy X filler rod (AMS5798) in ac-
cordance with MIL-W-6858.
(c) Position and secure flange
(1) onto dome (7) as shown in section
Fillet weld flange (1) all around
BB.
(g) Hand finish to blend excess
by fusion arc welding with gas backup
plug welds inside and outside of body
(11).
using Hastelloy X filler rod (AMS5798).
(d) Perform fluorescent pene-
(h) Place cooling ring (6 or 10)
trant inspection in accordance with MIL-
Cut or size cooling
into body (11).
1-6866, Type I, Method A.
ring (6 or 10) to fit assembly as shown
on figure 9-8, sheet 2 of 2.
(3) Replace damaged cooling ring
NOTE
(6, 10) as follows:
No grinding of weld permitted.
(a) Hand machine weld to remove
dome (7) or duct half (9) from body (11)
as required for access to cooling ring
(i) Install cooling ring (6 or
10) observing dimensions AB, AC or AD as
(6 or 10).
required and plug weld cooling ring (6
or 10) to body (11) by fusion arc weld-
(b) Locate and machine through
ing with gas backup using Hastelloy W
welds as shown on sheets 1 and 2 to re-
filler rod (AMS5786) in accordance with
move damaged cooling ring (6 or 10) as
MIL-W-6858. Weld shall not exceed 0.03
required.
inch maximum above surface.
(c) Deburr completely and hand
(j) Check for correct fit of
grind to remove damaged cooling ring (6
cooling ring (6 or 10) as follows:
or 10) and blend excess weld.
1. Check for gap between
cooling ring (6 or 10) and body (11).
Regulate air pressure to keep ero-
Maximum gap of 0.010 inch is permis-
sible.
sion of base metal to a minimum.
9-18
