TM 55-1520-240-23-9
11-51
RIG FIRST AND SECOND STAGE BELLCRANKS
(Continued)
11-51
RIG FIRST STAGE BELLCRANKS
Make sure bushings are in bellcranks
before installing bolts; otherwise,
damage to component will result.
Do not stand, kick, or induce lateral
loads to the thrust idler. A cracked
arm will cause in-flight failure resulting
in disconnecting the thrust cockpit
driver actuator (CCDA) and the
droop eliminator potentiometers
(Without 74 ) or thrust control position
transducer (With 74 ).
NOTE
Impedance bolts are installed in flight
control connections. These bolts are
self-retaining and require a special
nut and torque (Task 1-13).
1.
Install first stage rig pin (T44) (1) through hole
(2) in fitting (3), four bellcranks (4, 5, 6, and 7)
and hole (8) in structure. Pin must slide freely.
If free go to step 13. If not, perform steps 2 thru
12, then go to step 13.
2.
Remove two cotter pins (9), nuts (10), two
washers (11), two washers (12), and bolts (13)
from bellcranks (14 and 15). Disconnect two
links (16 and 17) from bellcranks.
3.
Remove two cotter pins (18), nuts (19), two
washers (20), two washers (21), and bolt (22)
from bellcranks (23 and 24). Disconnect two
links (25 and 26) from bellcranks.
4.
Install pin (1) through hole (2) in fitting (3), and
four bellcranks (4, 5, 6, and 7).
5.
Loosen nut (27) on link (16). Turn rod end (28)
until link can be positioned in bellcrank (14) with
bolt (13) installed loosely.
6.
Torque nut (27) of link (16) to 95 to 100
inch-pounds.
7.
Install bolt (13) two washers (12 and 11) and nut
(10) in bellcrank (14). Do not torque nut at this
time.
8.
Repeat steps 5, 6, and 7 for link (17) and
bellcrank (15).
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