TM 1-1520-238-T-7
11–150
Change 5
11–21.
LATERAL (CYCLIC) FLIGHT CONTROLS – RIGGING OPERATIONAL CHECK (cont)
11–21
Task
Result
g. Remove rig pins installed in steps a., b., and
e. Align LAT ZERO CYCLIC indicators. In
lateral servocylinder bellcrank level
swashplate rig pin hole (fig. 11–87), install -5
rig pin.
h. On right side of mast base (fig. 11–89),
install main rotor rigging plate
(TM 1-1520-238-23).
i. Place main rotor rigging fixture on main rotor
rigging plate next to right lateral bellcrank
link bolt nut. Loosen thumbscrew on rigging
fixture. Align BASIC DIM pointer on rigging
fixture with center point of right lateral
bellcrank bolt. Tighten thumbscrew.
j. Remove main rotor rigging plate from right
side of mast base.
k. On left side of mast base (fig. 11–90), install
main rotor rigging plate (TM 1-1520-238-23).
l. On rigging plate next to left lateral bellcrank
link bolt, place rigging fixture. Verify BASIC
DIM pointer aligns with center of left lateral
bellcrank link bolt.
If BASIC DIM pointer does not align with center of link
bolt, adjust lateral servocylinder rod end to level the
lateral bellcrank.
m. Remove main rotor rigging plate from left
side of mast base.
n. On right side of mast base, install main rotor
rigging plate (TM 1-1520-238-23).
