L. Disassemble control unit linkage.
(1)
Remove support by removing cotter pin, nut, and washer.
(2)
Remove support spacer.
(3)
Remove clamping nut, washer, and bolt from lever assembly.
(4)
Remove reaction link, spacers, and lever assembly.
(5)
On system B, remove nut, washer, and bolt from spring cartridge lever and remove lever.
(6)
On system A, remove spacer.
(7)
Remove support assembly.
(8)
Remove bus drum from shaft by removing lockbolts and collars.
4. Install Aileron Power Control Unit Linkage
A. Check aileron power control unit linkage for wear. Refer to Aileron Power Control Unit -Inspection/Check.
B. Assemble control unit linkage.
(1)
Install bus drum on shaft with lockbolts and collars.
(2)
Install support assembly on shaft. Fill upper exposed area of bearing with grease.
(3)
On system A, cover inside surface of spacer with corrosion preventive compound. Install spacer on shaft. Fill all voids between spacer and shaft with compound.
(4)
On system B, cover inside surface of spring cartridge lever with corrosion preventive compound. Install lever on shaft with bolt, washer, and nut. Fill all voids between lever and shaft with compound.
(5)
Cover spline surfaces of lever assembly with corrosion preventive compound. While holding reaction link horizontal, insert spacers and lever assembly into reaction link.
(6)
Install reaction link, spacers, and lever assembly on shaft with clamping bolt, washer, and nut. Fill upper exposed area of bearings with grease.
(7)
Cover inside surface of support spacer with corrosion preventive compound. Install spacer on shaft. Fill all voids between spacer and shaft with compound.
(8)
Fill upper exposed area of support bearing with grease. Install support on shaft with washer and nut.
(9)
Tighten nut to 400 to 450 pound-inches and install cotter pin.
(10)
Lubricate with grease thru lube fitting.
C. Place support into position, and secure with bolts, washers, and nuts (Fig. 401).
D. Connect safety link to outboard end of reaction link, and secure with spacer, bolt, washer, and nut.
E. Connect diagonal support to structure, and secure with bolt, washer, and nut.
F. Install alignment pins between support assemblies.
G. Insert rigging pin A/S-4 through aileron bus drum.
H. On system B, insert rigging pin A/S-3 in right aileron control quadrant shaft.
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27-11-101 Page 404 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. Feb 15/81
I. On system B connect inboard end of spring cartridge by installing bolt, washer, nut and cotter pin. Ensure bolt fits freely without compression on spring cartridge. Ensure antirotation fork and drain holes are down.
J. Install cables ABSA and ABSB on aileron bus drum, and secure with retaining plates.
K. Secure retaining plates with screws, washers and nuts.
L. Reconnect cables ABSA and ABSB at turnbuckles. Maintain zero tension on cables.
M. Adjust turnbuckles for each bus cable to permit positioning of aileron so that index point B on inboard end of aileron aligns vertically within + 0.03 inch of index point A on adjacent wing structure (Fig. 403.)
N. Adjust cables to specified tension as shown in Fig. 402.
O. Install turnbuckle locking clips.
P. Remove rigging pins A/S-3 and A/S-4.
Q. Install aileron power control units as specified in 27-11-71, Aileron Power Control Units -Removal/Installation.
R. Manually operate aileron control wheel and check that aileron travel is obtained as shown in Fig. 403.
500
Feb 15/81 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 27-11-101 Page 405
G03972T52444
Aileron System Cable Tension Requirements 502
27-11-101 Figure 402 May 15/81
Page 406
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
523 Aileron Deflection Diagram
Aug 01/95 Figure 403 27-11-101
Page 407
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
AILERON POWER CONTROL UNIT LINKAGE - INSPECTION/CHECK
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