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TM 55-1520-240-23-9
11-6.3
ISOLATION PROCEDURES FOR CHECKING CONTROLS LOOSENESS
(Continued)
11-6.3
GENERAL CHECKS
4.
Check for missing cotter pins (18).
5.
Check for loose nuts (19) and bolts (20).
6.
Check for loose rod end bearing nuts (21).
CHECK INTERMEDIATE AND FIRST STAGE
CONNECTING LINKS
7.
Remove closet acoustic blanket (Task 2-107).
8.
Remove closet backup panel (Task 2-2).
9.
Remove forward transmission drip pan (Task
2-3).
10.
Working from passageway, remove cotter pin
(22), nut (23), two washers (24 and 25), and bolt
(26) from bellcrank (27). Disconnect connecting
link (28) from bellcrank.
11.
Install bolt (26), two washers (24 and 25), and
nut (23) loosely in link (28).
12.
Repeat steps 10 and 11 for bellcrank (29) and
connecting link (30).
13.
Mount support (31) on structure (32). Position
dial indicator (33) against rod end bearing (34).
Set indicator at mid-stroke.
14.
Attach dial indicating scale (35) to bellcrank (27).
Use twine (E433).
15.
Have helper pull scale (35) up until scale
indicates 10 pounds. Record indicator (33)
reading as ‘A’.
16.
Pull scale (35) down until scale indicates 10
pounds. Record indicator (33) reading as ‘B’.
17.
Subtract reading ‘B’ from reading ‘A’. Result shall
not be more than 0.063 inch. If more, perform
Tasks 11-7 and 11-9.
18.
Remove scale (35) from bellcrank (27).
11-29
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