TM 55-2840-231-23
2-16. Diffuser Scroll - Inspection
INITIAL SETUP
Applicable Configuration
All
References
Para 2-17
ENGINE/
The Scroll assembly, NSN 2840-
00-244-1774, contains thorium, a
radioactive material.
Maintenance of this engine part is
limited to replacement unless
other maintenance is specifically
authorized and is covered by a
valid US Nuclear Regulatory
Commission license.
Nonrepairable Scroll assemblies
must be disposed of as
radioactive waste in accordance
with AR 385-11.
1. Diffuser Scroll
Visually inspect the installed diffuser scroll
for the following conditions. Replace the
compressor assembly if the damage cannot be
repaired.
a. Inspect for visible
cracks. Replace the
compressor if cracks are
found.
b. Inspect for corrosion
and paint damage;
repair
in accordance with
paragraph 2-17.
c. Check the turning
vanes in the outlet ports
for evidence of damage.
Damage is indicative of
impeller vane tip or
shroud failure. Replace
the compressor.
Change 11
2-65
