WARNING: IF AN INCORRECT TENSION TYPE SELF-LOCKING IS INSTALLED INSTEAD OF A SELF-LOCKING SHEAR NUT, CAPTAIN'S CONTROL COLUMN COULD BECOME DETACHED FROM FORK, RESULTING IN LOSS OF CONTROL FROM CAPTAIN'S CONTROL WHEEL.
(3)
If required, install roll force transducer and aileron force limiter (Ref Chapter 22).
(4)
Lubricate cables AA and AB with grease and secure to aileron drum. Install cable guards and secure with screws, washers and nuts (Fig. 401).
(5)
Guide ends of cables ACBA and ACBB through cutouts, and simultaneously position aileron control wheel drum into place.
(6)
Secure aileron control wheel drum assembly with four bolts, washers and nuts.
(7)
Connect cables ACBA, ACBB, AA, and AB to their respective turnbuckles. Tighten turnbuckles to remove cable slack but maintaining zero cable tension.
(8)
Connect roll force transducer and aileron force transducer electrical connectors.
(9)
Install control cabin air duct as follows:
(a)
Join ducts with a minimum of 1/2 -inch overlap at each end.
(b)
Reconnect mounting brackets, as required.
(c)
Clean areas where ducts join with cleaning solvent.
(d)
Tape joints with two laps of vinyl tape. Pull tape taut and smooth while applying.
(10)
Connect and tension landing gear control cables and landing gear brake control cables (Ref Chapter 32).
(11)
Connect and tension speed brake control cables (Ref 27-62-0, Adjustment/Test).
(12)
Remove all rigging pins (Fig. 402).
501
Nov 01/73 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 27-11-51 Page 407
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Aileron System Cable Tension Requirements 500
27-11-51 Figure 402 May 01/99
Page 408
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(13)
Ensure that aileron trim control knob is in zero trim position. Insert rigging pin A/S-13 into aileron trim gearbox.
(14)
Position captain's and first officer's aileron control wheels in neutral by placing a straightedge across upper ends of each control wheel. (See figure 403.) One end of first officer's control wheel may be out of contact with the straightedge by a maximum of 0.20 inch. Insert rigging pin A/S-lA.
(15)
Adjust cables ACBA and ACBB at turnbuckles to tension specified in figure 402.
(16)
Remove rigging pin A/S-lA. Rigging pin should withdraw freely from holes.
(17)
Remove straightedge from control wheels and rotate control wheels through several cycles.
(18)
Center control wheels and check rigging by placing straightedge across upper ends of control wheels. All four ends of control wheels should contact straightedge. However, one end of first officer's control wheel may be out of contact by 0.20-inch maximum.
(19)
Install turnbuckle locking clips.
(20)
Install cable shields and clamps.
(21)
Adjust left aileron control cables AA and AB.
(a)
Place aileron control wheels in neutral position by clamping straightedge across upper ends of both wheels. One end of first officer's control wheel may be out of contact by 0.20-inch maximum.
(b)
Ensure rigging pin A/S-13 is installed and that trim roller is seated in cam detent.
506
Nov 15/72 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 27-11-51 Page 409
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Aileron Control Wheel Adjustment 500
27-11-51 Figure 403 Nov 15/72
Page 410
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(c)
Tighten left cables AA and AB to tension specified in Fig. 402.
(d)
Remove rigging pin A/S-13.
(e)
Rotate captain's aileron control wheel through several complete cycles.
(f)
Check cable rigging by reinserting rigging pins A/S-1, A/S-1A and A/S-13.
(g)
Check that cable tension is within values specified in Fig. 402.
(h)
Remove all rigging pins.
(i)
Install turnbuckle locking clips.
(22)
Test aileron control wheel drum. Refer to Aileron Control Wheel Drum - Adjustment/Test.
(23)
Adjust and test roll force transducer and aileron force transducer (Ref Chapter 22, Autopilot).
(24)
Close lower nose compartment access door.
5. Aileron Control Wheel Drum - Removal/Installation (Ribs and brackets disconnected and left in vicinity)
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