TM 1-1520-238-23
5-28
5.4.
MAIN ROTOR BLADE INSTALLATION – continued
d. Install sling (4) on blade (1).
(1) Rotate two knurled knobs (6) clockwise to
open jaws (7).
(2) Use crane to position sling (4) on leading
edge of blade (1).
(3) Position center-of-gravity (CG) indicator (8)
approximately midway between jaws (7).
(4) Aline sling (4) with CG indicator (8) on blade
(1).
(5) Position two straps (9) around blade (1) trail-
ing edge.
(6) Rotate two knobs (6) counterclockwise to
close jaws (7) around blade (1).
(7) Attach two spring clips (10) to two bolts (11).
WARNING
If hoisted components are allowed to
fall, personnel can suffer injury or
death. Keep away from component
mounting surfaces and loading crane
boom. If injury occurs, seek medical
aid.
NOTE
Locking spherical bearing on sling allows
blade position adjustment 15 degrees in
any direction to ensure proper removal/
installation angle.
e. Use sling (4) to position blade (1) at proper
installation attitude.
(1) Hold torque handle (12) and remove clamp
handle (13) counterclockwise to release
bearing.
(2) Position blade (1) as required.
(3) Hold torque handle (12) and move clamp
handle (13) clockwise to lock bearing.
f. Install tag line to hub end of blade (1).
GO TO NEXT PAGE
M04–206–11
CLOSE
1
8
10
9
7
6
11
OPEN
7
4
M04–206–6
1
LOCK
UNLOCK
13
12
4
