TM 1-1520-238-23
5-198
5.44.
MAIN ROTOR DROOP STOP RING REMOVAL/INSTALLATION (AVIM) – continued
5.44.5. Inspection
NOTE
All of the following inspection procedures
apply to the main rotor droop stop ring.
a. Check for cracks and distortion (para 5.1).
b. Check for corrosion and pitting (para 1.49).
c. Check for evidence of scoring and galling
(para 5.1).
d. Check droop stop ring for ring wall thickness
(para 5.1).
e. Check inside diameter (dimension A).
(1) Maximum diameter - 10.655 INCHES. Use
caliper.
f. Check channel thickness (dimension B).
(1) Minimum thickness - 0.340 INCHES. Use
caliper set.
g. Check for scratches.
(1) Superficial scratches measuring 0.010 INCH
in depth or less without any raised parent
metal are allowed and may be repaired by
blending at a 10:1 transition ratio.
5.44.6. Installation
a. Install ring (1) in head (2).
b. Inspect (QA).
c. Install main rotor droop stop followers (four
places) (para 5.38).
END OF TASK
M04-3864-2
DIMENSION B
DIMENSION A
M04-3864-3
1
2
