TM 55-2840-254-23
4-56 INSTALL SECOND TURBINE DISC ASSEMBLY (AVIM) (Continued)
4-56
NOTE
The first turbine disc assembly, turbine
spacer, second turbine disc assembly,
seal, three locking plates and six bolts
are supplied as a balanced matched set.
If the second turbine disc assembly is
replaced, all other parts in the balanced,
matched set shall be replaced. Use field
replacement first and second turbine
disc assembly, part number 2-121-480-03
NOTE
if same second turbine disc assembly
that was removed is being installed,
omit steps 1 through 5.
If second turbine disc assembly is being
replaced do all steps.
1. Remove second turbine nozzle, spacer and case
(Ref. Task 4-57).
2. Remove first turbine disc assembly (Ref. Task
4-62).
3. Place in service field replacement first and sec-
ond turbine disc assembly (Ref. Task 4-72).
4. Install first turbine disc assembly (Ref. Task
4-66).
5. Install second turbine nozzle, spacer and case
and turbine rotor case (Ref. Task 4-61).
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