TM 1-2840-252-23-2
SECTION XV
FIELD REPLACEMENT FIRST AND SECOND TURBINE DISC ASSEMBLY
4-69
TURBINE DISC ASSEMBLY (AVIM)
INITIAL SETUP
Materials:
Marking Pencil (E38)
Applicable Configurations:
Personnel Required:
All
Tools:
Equipment Condition:
Powerplant Mechanic's Tool Kit,
Aircraft Powerplant Repairer (2)
NSN 5180-00-323-4944
GP Spacer Puller (T48)
NOTE
The first turbine disc assembly, spacer,
second turbine disc assembly, and seal are
critical components for which life cycle
data will be recorded and stored in the
DECU on the aircraft
If first turbine disc assembly, spacer, sec-
ond turbine disc assembly, and seal are
replacements, it is essential to update life
cycle count in engine history data stored in
the DECU via the engine history recording
terminal (EHRT) (T37) (Ref.
TM1-1520-252-23)
1.
Mark index numbers (1) on each of six bolts (2)
and mark six bolts (2) and mark six matching
numbers (3) on second turbine disc assembly (4)
using marking pencil (E38)
2.
Matchmark three locking plates (5), seal (6),
second turbine disc assembly (4), turbine
spacer (7), and first turbine disc assembly (8)
Use marking pencil (E38)
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