TM 1-1520-238-T-7
11–147
11–21.
LATERAL (CYCLIC) FLIGHT CONTROLS – RIGGING OPERATIONAL CHECK (cont)
11–21
WARNING
Maintenance personnel must be warned verbally prior to moving the
collective or cyclic stick. Any control activated can result in sudden blade
movement that can sever or crush fingers or hands.
NOTE
If referenced out of one paragraph or volume and into another for
additional troubleshooting, upon completion of the task, return to the
maintenance operational check for the original paragraph or volume.
1. Complete the rigging operational check as follows:
Task
Result
a. Move pilot cyclic stick to lateral mid travel
position. In lateral rig pin hole of cyclic
housing cover (fig. 11–84), install -3 rig pin.
Install warning covers on pilot and CPG
cyclic sticks.
b. In CPG cyclic stick housing cover lateral rig
pin hole, install -3 rig pin.
If rig pin cannot be installed, perform lower lateral
flight control rigging between pilot and CPG cyclic
sticks (TM 1-1520-238-23).
c. Move pilot collective stick to mid travel
position. In collective servocylinder bellcrank
rig pin hole (fig. 11–85), install -9 rig pin.
Attach warning flags to pilot and CPG
collective sticks.
d. Align pilot ZERO CYCLIC LONG indicators
(fig. 11–84). In longitudinal servocylinder
bellcrank level swashplate rig pin hole
(fig. 11–86), install -5 rig pin.
e. In lateral servocylinder bellcrank mid travel
rig pin hole (fig. 11–87), install – 5 rig pin.
If rig pin cannot be installed, perform lower lateral
flight control rigging between pilot cyclic stick and
lateral servocylinder bellcrank (TM 1-1520-238-23).
