TM 55-1520-240-23-5
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PHASE ROTARY-WING BLADES (Continued)
6-28
CAUTION
Make sure forward and aft blades do
not collide. Damage to blades can
result.
1.
Rotate forward and aft rotary-wing heads (1 and
2) to position the same color blade forward on
each head.
WARNING
Use only swiveling actuators to phase
blades. Do not use pivoting actuators.
Improper phasing will result.
NOTE
Swiveling actuator is on left side of
forward head and right side of aft
head.
2.
Have helper rotate forward blades to align one
forward pitch link (4) with upper mounting lug (5)
of swiveling actuator (6). Install phasing block
(7) around link and lug. Check that one blade
(3) still points forward.
3.
Have helper rotate aft blades to align one aft
pitch link (8) with upper mounting lug (9) of
swiveling actuator (10). Install phasing block (7)
around link and lug. Check that one blade (3)
still points forward.
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