J. Attach right control stand frame (4) to control stand.
K. Connect stabilizer trim cutout switches (9).
L. Install key (3) in right control shaft and right control stand frame.
M. Install right control shaft nut (5) and tighten to 200-300 pound-inches. Lockwire nut to frame.
N. Install cover assemblies (5, Fig. 403) on control stand.
O. Install stabilizer trim warning light cover (15, Fig. 404) on cover assemblies (5, Fig. 403).
P. Install horn cutout switch (17, Fig. 404).
Q. Install forward and aft cover angles (6 and 8, Fig. 403) on control stand and install forward and aft cover tie straps (4 and 2).
R. Install start lever detents (10) for number 1 and 2 engines.
S. Replace forward electronic units (16, fig. 404) in aft electronics control panel.
T. Install both left and right upper side door (6).
U. Install right stabilizer trim control wheel (7) on stabilizer trim control wheel shaft (2).
NOTE: Handles on stabilizer trim control wheels should be 90 (士 15) degrees apart when installed on control stand.
V. Install stabilizer trim control wheel tie rod (8) and secure with tie rod nut (1) at each end.
W.
In lower nose compartment, tighten stabilizer trim chain by adjusting support links to lower forward mechanism. (Fig. 405.) Adjust chain so that after application of a 20-pound force to remove slack, reduction to a 5-pound force will deflect chain 0.25 (士 0.07) inch at a point 4.5 (士 1.0) inches above the forward tangent of the forward mechanism sprocket. Ensure dimension A of forward and aft support links match within 士 0.06 inch. Check that stabilizer trim control wheels rotate freely.
X.
Check that stabilizer trim indicator position agrees with position of stabilizer. If out of adjustment, refer to Chapter 27, Horizontal Stabilizer Trim Control System - Adjustment/Test.
Y.
Adjust flap control cables WFA and WFB.
(1)
Lift flap control lever and clamp so that lever latch is disengaged from detent plate. (See figure 406.)
(2)
In lower nose compartment, adjust turnbuckles to tighten flap control cables WFA and WFB to load specified for ambient temperature.
(3)
Install turnbuckle-locking clips.
(4)
Position flap control lever all the way forward and then release lever.
(5)
Check that lever springs back to rigging position.
(6)
Remove clamp from flap control lever.
(7)
Check that flap lever moves smoothly without binding through full range of travel.
(8)
Position flap control lever in FLAP UP detent.
Z.
Tighten all thrust control cables by adjusting turnbuckles (Fig. 407). Remove clamps. Refer to 76-11-0, Engine Control System - Adjustment/Test. AA. Connect and tighten all engine start control cables (Fig. 407). Remove clamps. Refer to 76-11-
500
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500 Stabilizer Trim Chain Assembly Adjustment
Nov 15/67 Figure 405 76-11-71
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Flap Control Lever Rigging 501
76-11-71 Figure 406 (Sheet 1) Nov 15/70
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500 Flap Control Lever Rigging
Nov 15/67 Figure 406 (Sheet 2) 76-11-71
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BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
0, Engine Control System - Adjustment/Test. AB. Adjust speed brake control lever.
(1)
Place speed brake control lever in DOWN detent. Ensure that lever latch is in detent on control stand. (Fig. 408)
(2)
In lower nose compartment, check that rigging pin SB-1 can be freely installed through speed brake forward drum into structure. If pin cannot be installed freely, accomplish following:
(a)
Disconnect upper end of lower control rod from idler link.
(b)
Loosen checknut and adjust rod end until rod end bolt fits freely with rigging pin SB-1 installed.
(c)
Install rod end bolt with washer under bolt head. Secure bolt with washer and locknut.
(d)
Tighten checknut on rod end.
(e)
Ensure that rod end is visible in inspection hole in control rod.
(f)
Remove rigging pin SB-1.
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