TM 1-1520-238-23
Change 8
6-521
6.125.
INTERMEDIATE GEARBOX OUTPUT SEAL ASSEMBLY REMOVAL/INSTALLATION – continued
6.125.4. Cleaning
a. Clean removed and attaching parts or surfaces (para 1.47).
6.125.5. Inspection
a. Check retainer for nicks, gouges, and burrs.
(1) Repair damage 0.040 INCH or less deep by blending. Use depth gage.
(2) On mounting surface, repair damage 0.020 INCH or less deep by blending. Use depth gage.
b. Check retainer for loose or damaged clinch nuts (TM 1-1500-204-23).
c. Check retainer for elongated bolt holes. None allowed.
d. Check retainer for cracks. None allowed.
e. Check retainer for corrosion. (para 1.49).
f. Check gearbox housing mating studs for damaged threads. None allowed.
g. Check gearbox case to bearing liner surface interface for corrosion (caused by moisture intrusion into
unprotected jack screw holes) (para 1.49). Minor line corrosion allowed.
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