TM 55-1520-240-23-9
11-57
RIG AFT CABIN AND PYLON LINKAGE
(Continued)
11-57
28.
Check bolt (49) of pylon left lower bellcrank (50).
Measure and record distance between center
of bolt and bulkhead (51) at sta. 534. Distance
must be 6.69 to 6.93 inches. If same, go to step
36. If not, perform steps 29 thru 35, then go to
step 36.
29.
Remove cotter pin (52), nut (53), two washers
(54 and 55), and bolt (49) from bellcrank (50).
Disconnect link (36) from bellcrank.
30.
Working from aft tunnel section, loosen nut (37)
of link (36). Turn link clockwise to move bellcrank
(50) forward.
NOTE
One half turn of link moves bellcrank
about 0.02 inch.
31.
Working in cabin, position link (36) in bellcrank
(50). Install bolt (49), two washers (55 and 54),
and nut (53). Tighten nut.
32.
Repeat step 28. If distance is same, go to step
33. If not, repeat steps 28 thru 32.
33.
Working from aft tunnel section, torque nut (37)
of link (36) to 103 inch-pounds.
34.
Working in cabin, torque nut (53) to 60 to 90
inch-pounds. Install cotter pin (52).
35.
Check bolt (49). Bolt 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 34.
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