ARMY
TM 5-6115-612-34
NAVY AG-320B0-MME-00
8-4. OVERHAUL OF TURBINE ASSEMBLY.
(cont)
f.
Reassembly (cont)
(31) Torque retainer nut to 475-600 inch pounds
(53.67-67 80 Nm).
NOTE
Speed pickup nut is a 100% replaceable item and should
not be reused.
(32) Install new speed pickup nut (9, Figure 8-6)
Use fabricated tool (FT-21368) with torque wrench and
stake speed pickup nut into grooves on sides of turbine
wheel shaft using a center punch Carefully remove any
metal particles from area around retainer nut and speed
pickup nut using a vacuum cleaner. Flush area with
alcohol followed by clean turbine oil Flush entire area
generously with oil.
(33) Install both halves of turbine nozzle
assembly (1, Figure 8-6) and secure with six washers (9)
and bolts (8) Torque to 40 inch pounds (4 52 Nm)
(34) Install shims (7) to depth measured on
disassembly.
(35) Begin to install turbine nozzle (1) Ensure
that matchmarks on turbine nozzle and diffuser are
alined.
(36) Drop bolts into positions 2, 3, 5, 6, 8, 9, 11,
12, 14, 15, and 17 See Figure 8-7 Ensure that bolts drop
through holes to outside of compressor inlet housing (3,
Figure 8-6)
(37) Complete installation of turbine nozzle by
lightly tapping nozzle into position using a non-metallic
hammer.
NOTE
Reverse safety wire, inlet compressor,
and back shroud bolts.
(38) Install washers (5) and nuts (4) on bolts (6)
Torque in crisscross pattern to 40 inch pounds (4.52
Nm). Lockwire using MS20995-C3 after shim set
clearance is accomplished.
(39) Use wire gage to measure clearance
between turbine wheel and turbine nozzle. Adjust shim
set (7) to maintain clearance of .022-.026 inch (0.056-
0.066 cm)
g. Installation.
CAUTION
Maintain clearance of 0.014-0.058 inch (0 036-0 147 cm)
between speed pickup nut and speed sensor.
(1)
Install shim (22, Figure 8-5) and speed
sensor (21).
(2)
Install washer (20) and speed sensor clip
(19) Secure with bolt (18).
(3)
Install preformed packing (17) and bleed
air connector (16).
(4)
Install shouldered output shaft (8) and
preformed packing (7).
(5)
Install turbine assembly (6) and secure with
washers (5) and nuts (4). Lockwire using M520995-C32.
(6)
On bottom of compressor inlet housing,
connect fuel drain line (3), oil drain tube (2), and oil
supply tube (1)
(7)
Install combustion chamber case in
accordance with paragraph 8-2d.
(8)
Install padeye (26) and foreign object
deflector (25 1) Secure with washer (25), and bolt (24).
Torque to 50-70 inch pounds (5.7-7 9 Nm).
(9)
Install preformed packing (23).
8-40 Change 4
