TM 1-1520-238-23
5-288
Change 5
5.67.
TAIL ROTOR FORK AND TEETER STOP DISASSEMBLY/ASSEMBLY (AVIM) – continued
5.67.4. Cleaning
CAUTION
Do not use trichloroethane, chlorofluoroethane, or any other product with “chlor” in the name, for
cleaning titanium, magnesium, aluminum, or galvanized metals. Products with “chlor” in the name are
corrosive to these metals.
NOTE
Do not allow alcohol to evaporate from surface. Discoloration will occur.
Repeat cleaning procedure if there is visible discoloration on cheesecloth.
a. Clean teeter stop and teeter stop mating surface of fork.
(1) Ensure all cured compound is completely removed. Use isopropyl alcohol (item 106, App F) and cloth
(item 51, App F)
b. Rinse teeter stop and teeter stop mating surface of fork and wipe dry. Use distilled water (item 73, App F)
and cloth (item 52, App F).
5.67.5. Inspection
a. Check teeter stop and fork for cracks. None allowed.
b. Check teeter stop and fork for evidence of corrosion (para 1.49).
c. Check teeter stop securing holes for wear damage:
(1) Nicks, scratches, gouges, galling, scoring, and dents are acceptable if less than 0.010 INCH deep.
(2) Superficial scratches are acceptable if no material is raised above surrounding surface.
d. Check fork for scratches, nicks, and gouges (para 5.51).
e. Check fork resilient mounts for deterioration and cracking (para 5.51).
f. Check fork for distortion or twists. None allowed.
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