TM55-2840-251-23
3-2 INNER (SMALL) EXIT DUCT, SHROUD AND VANE ASSEMBLY (AVIM) (Continued)
3-2-3 INSPECTION (Cont)
3. Inspect inner (small) exit duct as follows:
a. For cracks, burning and distortion. No damage
permitted. Return duct to Depot Maintenance.
b. For looseness of, or damage to, shank nuts.
Repair (Task 3-2-4).
3-2-4 REPAIR
1. Grinding of shroud segments:
CAUTION
Prior to installation of compressor turbine
shroud grinder and associated adapter in
gas generator case, insure all airflow
openings are blanked-off to prevent dust,
caused by grinding, from entering the
engine.
a. Install shroud grinder (T16) (16) over adapter (17)
and cover (18), already installed in gas generator case.
Adjust vertical vernier (19) until abrasive wheel (T.52) (20)
contacts outer edge of shroud segments (21).
b. Adjust side vernier (22) until abrasive wheel
contacts thickest segment section, back off vernier one
turn.
GO TO NEXT PAGE
3-16
