TM 1-1520-238-23
1-273
1.84.
HOISTING – MAIN ROTOR BLADE INSTALLATION – continued
NOTE
Use tag lines to control blade position.
c. Tie 15-foot tag lines to inboard and outboard
ends of blade.
d. Lift main rotor blade.
(1) Crank winch (6) to hoist blade level with main
rotor head (8).
e. Position blade at main rotor head lead lag link
(9).
(1) Rotate handle (2) to up position to allow later-
al movement of boom arm (3).
(2) Use two tag lines (4) to move crane boom
arm (3). Turn boom arm (3) to aline blade root
next to link (9).
(3) Rotate crane handle (2) to down position to
prevent lateral movement of boom arm (3).
f. Remove droop stop wedges.
g. Install blade attaching pins (para 5.4).
h. Release tension on lifting cable (7).
(1) Crank winch (6) to position hook (1) just
above sling support frame (7).
i. Retract hook (1).
(1) Unsnap hook (1) from ring (5).
(2) Crank winch (6) to position hook (1) about 6
inches below boom sheave (10).
END OF TASK
M04-2241-2
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VIEW ROTATED
