TM-9-2990-206-34P
TURBOSUPERCHARGER AlRESEARCH MODEL T18C01
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL (INCLUDING REPAIR PARTS AND SPECIAL TOOLS LISTS)
TM-9-2990-206-34P - Page 33 of 85
TM 9-2990-206-34&P
Section Ill. CLEANING, INSPECTION, AND REPAIR
3-4. CLEANING.
WARNING
—
Particles blown by compressed
air are hazardous. Make certain
the air stream is not directed
at any person. Protect eyes
and face with appropriate shields.
Remove foreign material accumulations
from exterior surfaces. Remove any
remaining foreign material using a
clean cloth moistened in drycleaning
solvent (P-D-680, Type II). Bl
OW
dry
with compressed air, or wipe dry with
a clean cloth. Clean all oil holes
with probes. Probe the turbine end of
the center housing to remove all carbon-
ized oil.
CAUTION
INSPECT COMPRESSOR HOUSING
1.
2.
3.
4.
3-5. INSPECTION.
General. All parts must be
thorougly examined and inspected to
determine if they are suitable for reuse
in rebuild of the assembly, or whether
they must be replaced with new parts.
b.
Cracks. Inspect for cracks using
a strong light and magnifying glass.
c.
Wear or Damage. Some types of
wear or damage may be detected by visual
inspection, while other types require
use of suitable measuring instruments
and equipment. All reused parts must
meet wear limit requirements.
d.
Bore and Outside Diameters.
When measuring bores or outside diam-
eters, always take two measurements,
about 90° apart, to account for a pos-
sible out-of-round condition.
Inspect compressor housing (A) for cracks, nicks,
and dents. Inspect for distorted or warped mount-
ing flanges (B) and (C).
Inspect for evidence of contact or interference
(D) with the compressor wheel .
Inspect for missing, broken, loose, or damaged
studs (E). Tag loose or damaged studs for repair.
Replace compressor housing if cracked, or if mount-
ing flanges are distorted. Replace if there is
evidence of interference with the compressor wheel.
TA293546
3-10.2
Change 1
Do not use caustic solution
wire brush, or steel blade
scraper.
Use bristle brush
or plastic scraper only.
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