TM 55-1520-240-23-9
11-7
INSPECT FLIGHT CONTROL SYSTEM ALUMINUM AND STEEL CONNECTING
LINKS
(Continued)
11-7
ADJUSTABLE CONNECTING LINKS
NOTE
Adjustable connecting links are made
of round seamless aluminum alloy
2024-T4 or steel tubing 4130. Rod
end fittings are swaged or riveted on
each end.
6.
Inspect links for cracks. There shall be no
cracks. If a crack is suspected, refer to TM
1-1520-253-23.
7.
Inspect links for nicks and scratches. Blend out
(Task 11-14).
8.
Check that blended area is large enough to blend
smoothly with next undamaged area.
NOTE
These limits apply to out-of-round
damage and dents, except for tubes
over 2 inches diameter, which
must not be more than 0.015 inch
out-of-round.
9.
Check link for dents. Replace link if following
limits are exceeded:
a.
Divide tube into three equal lengths.
b.
Check for dents in middle one third of tube.
One dent is allowed. Depth of dent must not
be more than 0.010 inch. Dent must be free
of nicks and scratches.
c.
Check for dents in outer thirds of tubes. Total
of two dents is allowed. Depth of dent must
not be more than 0.015 inch. Dent must be
free of nicks and scratches.
10.
Check link for out-of-round. Replace link if
following limits are exceeded:
a.
For tubes less than 2 inches diameter,
out-of-round must not be more than 0.010
inch in middle one third of tube.
b.
For tube larger than 2 inches diameter,
out-of-round must not be more than 0.015
inch in middle one third of tube.
c.
For any diameter tube, out-of-round must
not be more than 0.015 inch in outer third
sections of tubes.
11-37
