TM 1-1520-238-23
Change 4
5-107
5.21.
MAIN ROTOR HEAD REMOVAL/INSTALLATION – continued
5.21.3. Removal
a. With assistants, remove main rotor head (1)
from mast (2) (para 1.85).
5.21.4. Cleaning
a. Clean head (para 1.47).
5.21.5. Inspection
a. Check head for cracks. None allowed.
b. Check head for corrosion (para 1.49).
c. Check head for scratches and scoring.
(1) Maximum depth not to exceed 0.010 INCH.
d. Check exposed area of mast (para 6.97).
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M04-224-4
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