TM 55-1520-240-23-9
11-193
INSTALL FORWARD OR AFT SERVOCYLINDER CONNECTING LINKS
(Continued)
11-193
Bushing must be in bellcranks before
installing bolt; otherwise, damage to
component will result.
NOTE
Procedure is same to install forward
or aft servocylinder connecting links.
Forward left connecting link is shown
here.
Impedance bolts are installed in flight
control connections. These bolts are
self-retaining and require a special
nut and torque (Task 1-13).
1.
Remove cotter pin (13), nut (1), washers (2 and
3), and bolt (4) from servocylinder (5).
1.1.
Remove inner bushing (3.1) and outer bushing
(3.2).
FLIGHT SAFETY PARTS
This is an installation critical flight
safety part. All aspects of its assembly
and installation must be ensured.
Ensure that both rod end jam nuts are
installed and torqued.
Ensure that the rivet through the fixed
rod end bearing is secure.
Ensure adjustable rod end bearing
faces up attaching to upper boost
actuator pilot vavle.
Ensure proper attaching hardware
(impedance type bolt, nut, and
washers) is installed including
verification of bolt head orientation,
torque, and installation of cotter pins.
Loose attachments within flight control
primary linkage will degrade aircraft
control. Missing components will
cause loss of control.
2.
Install inner bushing (3.1) and outer bushing
(3.2). Position forward left connecting link (6)
between lugs of servocylinder (5). Install bolt (4)
with one washer (3) through bushings and lugs,
one washer (2), and nut (1). Do not torque nut at
this time.
3.
Remove nut (7), two washers (8 and 9), and bolt
(10) from bellcrank (11).
4.
Position link (6) in bellcrank (11). Install bolt (10),
two washers (9 and 8), and nut (7).
5.
Torque two nuts (1 and 7) to 30 to 45
inch-pounds. Install two cotter pins (12 and 13).
6.
Check two bolts (4 and 10). Bolts shall not rotate
with torque less than 10 inch-pounds. There
shall be no axial looseness. If bolt rotates or is
loose, add washer under nut, and repeat step 5.
INSPECT
FOLLOW-ON MAINTENANCE:
Remove servocylinder safety blocks (Task 11-29).
Perform neutral rig check (Task 11-33).
Perform operational check of flight control system
(TM 55-1520-240-T).
Close forward or aft work platforms (Task 2-2).
END OF TASK
11-790
