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 37 of 85
INSPECTION—Continued.
INSPECT CENTER HOUSING
TOOLS:
0.7500 to 1.2500 inch telescope gage
0.00 to 1.00 inch micrometer
1.00 to 2.00 inch micrometer
1.
2.
3.
4.
5.
6.
7.
8.
Inspect center housing (A) for cracks,
nicks, and raised metal.
Inspect for
distorted or warped mounting flange and
machined mating surfaces.
Inspect tapped
holes for thread damage.
Flush oil holes with solvent, Solvent
must enter through oil inlet hole
(B) and
flow freely through three holes (C).
Inspect sleeve bearing bores (D) for
stratches, scoring, or galling.
Inspect for bent, cracked, or loose
locating pins (E). Pins must be secure
and not damaged.
Measure sleeve bearing bore diameters (D)
using telescope gage and micrometer. Re-
place center housing if bore diameter
exceeds 0.9832 inch (24.97 mu).
Measure seal ring bore diameter
(F)
using telescope gage and micrometer.
Replace center housing if bore diameter
exceeds 1.0310 inch (26.19 inn).
Measure step bore (G) using telescope
gage and micrometer. Replace center
housing if bore diameter exceeds 1.0210
inch (25.93 mm).
Replace center housing if damaged, or
does not meet wear limit requirements.
3-14
TM 9-2990-206-34&P
TA097821
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