TM 55-1520-240-23-9
11-57
RIG AFT CABIN AND PYLON LINKAGE
(Continued)
11-57
44.
Working from left work platform, check bolt (68)
of pylon left upper bellcrank (69). Measure and
record distance between center of bolt and deck
(70) of WL 90.75. Distance must be 9.10 to 9.34
inches. If same, go to step 52. If not, perform
steps 45 thru 51, then go to step 52.
45.
Remove cotter pin (71), nut (72), two washers
(73 and 74), and bolt (75) from bellcrank (69).
Disconnect link (76) from bellcrank.
46.
Loosen nut (77) of link (76). Turn rod end (78)
clockwise to move arm (79) of bellcrank (69)
down.
NOTE
One half turn of rod end moves arm
about 0.015 inch.
47.
Position link (76) in bellcrank (69). Install bolt
(75), two washers (74 and 73), and nut (72).
Tighten nut.
48.
Repeat step 44. If distance is same, go to step
49. If not, repeat steps 44 thru 48.
49.
Torque nut (77) of link (76) to 103 inch-pounds.
50.
Torque nut (72) to 60 to 90 inch-pounds. Install
cotter pin (71).
51.
Check bolt (75). 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 50.
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