TM 55-1520-240-23-4
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INSPECT ROTOR HEAD FIXED DROOP STOPS
(Continued)
5-47
NOTE
Procedure is same to inspect all six
fixed droop stops. Forward fixed
droop stop is shown here.
1.
Turn rotor blades (1) until blade is centered over
tunnel (2). Use two tiedown lines (3) to turn and
tie down blades.
Do not lower blades without warning.
Injury to personnel can occur if blade
is lowered while inspection is in
progress.
2.
Have helpers lift blade (1) until fixed droop stop
(4) is clear of hub (5).
3.
Check fixed droop stop (4) for dents where droop
stop contacts hub (5). Dents shall not exceed
0.012 inch in depth.
4.
Remove lockwire from bolts (6). Re-torque bolts
to 70 inch-pounds.
5.
Lockwire bolts (6). Use lockwire (E229).
6.
Have helpers lower blade (1).
FOLLOW-ON MAINTENANCE:
Close work platform (Task 2-2).
END OF TASK
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