TM 55-1730-229-34
AG 320A0-MME-000
TO 35 C2-3-473-2
TM 1730-34/1
(b) Insert new nut into mounting
(5) Check trailing edge of vanes
flange.
for cracks (5). Cracks up to 0.500 inch
in length on SIX adjacent vanes or ten
(c) Restrain nut using a suit-
non-adjacent vanes are acceptable.
Cracks in excess of above limits or in-
able dolly and flare shank with 30 to 60
tersecting cracks, replace nozzle.
degrees conical punch.
(6) Check for cracks (6) at lead-
(3) Replace damaged nutplate (2)
ing edge of vanes. No cracks allowed.
as follows:
(7) Check for axial cracks (7) in
(a) Machine weld to remove nut-
vanes. No cracks allowed.
plate.
Hand finish to blend remaining
weld to existing surface.
(8) Check vane trailing edges for
erosion (8) or feathering damaged. Dam-
(b) Clean area to be welded with
clean, lint-free cloth dampened with
age up to 0.130 inch deep, refer to Re-
pair.
Damage in excess of 0.130 inch
methanol 0-M-232 or equivalent.
deep, replace nozzle.
(c) position nutplate onto ig-
nition unit bracket and retain with a
(9) Perform fluorescent penetrant
10/32 bolt for welding.
inspection in accordance with MIL-I-
6866. No cracks allowed.
(d) Spot weld nutplate by fusion
arc welding with gas backup using 347
(10) Dimensionally check turbine
filler rod (AMS5680).
nozzle for requirements as shown in fig-
(4) Replace damaged nutplate (3)
as follows:
(11) Replace turbine nozzle if in-
spection requirements are not met.
(a) Machine weld to remove nut-
plate from flange. Hand finish to blend
g.
Repair Turbine Plenum Assembly.
remaining weld to existing surface.
(b) Clean area to be welded with
(1) Straighten surface A face as
clean, lint-free cloth dampened with
follows:
methanol 0-M-232 or equivalent.
(a) Cold straight surface A to
(c) Position nutplate onto
best condition possible.
flange and retain with a 10/32 bolt for
welding.
(b) Check flatness of surface A.
If surface is not flat within 0.010 inch
reject turbine plenum assembly.
(d) Spot weld nutplate by fusion
arc welding with gas backup and 347
filler rod (AMS5680).
(c) Perform fluorescent pene-
trant Inspection.
(5) Repair cracks in plenum (4) as
follows.
(2) Replace
damaged nut (1) as
follows:
(a) Remove insulation material
away from area to be repaired.
(a) Remove damaged nut (1).
9-31