TM 55-1520-240-23-9
11-6.1
CHECK TUNNEL CONTROLS FOR BINDING
(Continued)
11-6.1
1.
Have helper in cockpit slowly move pedals (1),
control stick (2), and thrust control (3) through
full range of travel.
Use care when feeling components for
vibration. Serious injury to personnel
can result.
2.
Working from tunnel walkway, check the
following:
a.
Control arms (4) and idlers (5) for jerking
movements. Feel for vibration. If binding
or roughness is found, clean and lubricate
bearings (Task 11-2).
b.
Check bolts (6) for jerky rotation and listen for
cracking or squeaking sounds.
c.
Connecting links (7) for vibration and listen
for cracking or squeaking sounds. If binding
or roughness is found, inspect links (Tasks
11-7 thru 11-9).
3.
Set cockpit controls to neutral.
FOLLOW-ON MAINTENANCE:
Remove hydraulic power.
Remove electrical power.
Close tunnel access covers (Task 2-2).
Close pylon access doors (Task 2-2).
Install forward transmission aft fairing (Task 2-2).
END OF TASK
11-21
