TM 55-2840-254-23
2-72 INSTALL NO. 3 BEARING PACKAGE (AVIM) (Continued)
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1. Temporarily install two slave bolts (1) and two
slave washers (2) in holes (3) at 5-oclock and
11-oclock positions.
2. Push No. 1 bearing outer race (4) aft. Measure
from inner bolt circle mounting flange surface
of inlet housing (5) to No. 1 bearing outer race
(4). Record as Dimension A (6).
3. Measure from aft rim surface of No. 3 bearing
support housing (7) to No. 3 bearing support
housing flange mounting surface (8). Record
as Dimension B (9).
4. Subtract Dimension A measurement recorded in
step 2 from Dimension B measurement recorded
in step 3. Record result.
5. Find result recorded in step 4. in shim selection
table and read across to determine shim thickness
you will need.
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