TM 1-2840-252-23-2
4-40
INSTALL NO. 4 AND 5 BEARING ACKAGE SEALS (AVIM) (Continued)
P
4-40
Check axial clearance between fourth stage
49.
power turbine rotor (61) and fourth stage pow-
er turbine nozzle (88) at blade roots (96).Use
0.104 inch and 0.228 inch bent wire gages (Ap-
pendix E) (97) inserted between fourth stage
power turbine rotor blades (76) Axial clearance
shall not be less than 0.104 inch or more than
0.228 inch.
NOTE
If axial clearance is not within limits, do
steps 38 through 49 Ring spacer may be
installed or removed as necessary Re-
check clearance If clearance still is not
within limits, replace power turbine assem-
bly
GO TO NEXT PAGE
4-215
