TM 1-1520-238-T-7
11–137
11–20.
LONGITUDINAL (CYCLIC) FLIGHT CONTROLS – RIGGING OPERATIONAL
11–20
CHECK (cont)
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 collective stick to mid travel
position. In collective servocylinder bellcrank
(fig. 11–72), install -9 rig pin. Install warning
flags on pilot/CPG collective sticks.
RIG PIN HOLE
COLLECTIVE
SERVOCYLINDER
BELLCRANK
-9 RIG PIN
M70-146A
Figure 11–72.
Collective Servocylinder Bellcrank
b. Move pilot cyclic stick, as required, to align
the LAT zero cyclic indicators. In lateral
servocylinder bellcrank (fig. 11–73), install -5
rig pin at level swashplate rig pin hole.
Install cyclic stick warning cover.
