TM 1-1520-238-23
7-464
Change 9
7.120.
SHAFT DRIVEN COMPRESSOR (SDC) REMOVAL – continued
7.120.4. Cleaning
a. Wipe removed and attaching parts with a clean rag.
7.120.5. Inspection
a. Check removed and attaching parts for damage and wear (para 7.114).
b. Check compressor driveplate adapter and seal for leakage (para 6.54).
c. Check driveplate for alinement pin hole elongation (para 6.54).
d. Check driveplate for cracks, nicks, dents, gouges, and distortion (para 6.41).
e. Check driveplate bolts and inserts for looseness. None allowed.
f. Check SDC alinement pins for damage. None allowed.
g. Check SDC housing for cracks (para 7.114).
h. Check removed and attaching parts for corrosion (para 1.49).
i. Check seal plate for cracks, nicks, dents, gouges, and distortion. None allowed.
j. Check seal plate mounting pad for corrosion (para 1.49).
k. Check seal surface for damage. None allowed.
l. Check rubber seals of seal plate for bonding by rubbing across raised portion of rubber seal to check
for retention. Replace seal plate if debonding is evident. Replace seal plate if rubber seals are damaged (para
7.122).
m. Check rubber seals for compression capability. Lay a straight edge across rubber seals. Ensure distance
from top of seals to seal plate is greater than or equal to 0.010 INCH. Replace seal plate if less than 0.010
INCH (para 7.122).
n. Check SDC housing, shaft, and driveplates for crossed, stripped, or flattened threads. None allowed.
o. Check internal splines for pitting and scoring. None allowed.
p. Check gear teeth for scuffing, scoring, pitting, metal flow or wear steps. None allowed.
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