B. Two methods for removal and installation of the aileron control wheel drum are presented. The first method is to remove drum and associated ribs and brackets as an assembly. This requires disconnection of landing gear control cables, landing gear brake control cables, speed brake control cables, and subsequent reconnection and rigging of these cables. The second method is to disconnect ribs and brackets from aileron control wheel drum and leave in vicinity with landing gear control cables, landing gear brake control cables, and speed brake control cables still connected and undisturbed.
2. Equipment and Materials
A. Vinyl Plastic Tape - 2 inches wide, Permacel Cold Weather Vinyl Tape No. 295
B. Cleaning Solvent - BMS 3-2
C. Rigging Pins Kit - F70207-84, or -98:
REF NO. F70207-( ) DIAMETER (INCHES) LENGTH (INCHES) FUNCTION
A/S-1 A/S-1A A/S-13 -13 -19 -8 0.309-0.311 0.309-0.311 0.309-0.311 2.35 + 0.06 8.25 + 0.25 3.7 + 0.25 AILERON TRANSFER MECHANISM AILERON TRANSFER MECHANISM AILERON TRIM GEARBOX
D. Ball and Roller Bearing Grease - MIL-G-25760
E. Straightedge - SE27-0001, or equivalent
3. Prepare to Remove Aileron Control Wheel Drum
A. Open lower nose compartment access door.
B. Ensure hydraulic systems A and B are depressurized (Ref 27-11-0 MP).
C. Place aileron control wheels in neutral position. Place aileron trim control knob in zero trim position.
506
Aug 01/96 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 27-11-51 Page 401
G42339 G03262 G03645 G03664
Aileron Control Wheel Drum Installation 500
27-11-51 Page 402 Figure 401 (Sheet 1) BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. Aug 15/68
500 Aileron Control Wheel Drum Installation
Aug 15/69 Figure 401 (Sheet 2) BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 27-11-51 Page 403
Aileron Control Wheel Drum Installation 580
27-11-51 Page 404 Figure 401 (Sheet 3) BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. May 15/81
580 Aileron Control Wheel Drum Installation
Nov 15/79 Figure 401 (Sheet 4) BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 27-11-51 Page 405
D. Insert rigging pins A/S-1 and A/S-lA in aileron transfer mechanism (Fig. 401).
NOTE: Rigging pin A/S-1 must be fully put into transfer mechanism and held to keep it from falling out.
E. Insert rigging pin A/S-13 in aileron trim gearbox.
4. Aileron Control Wheel Drum - Removal/Installation (Drum and associated ribs and brackets removed as an assembly)
A. Remove Aileron Control Wheel Drum
(1)
Disconnect roll force transducer electrical connector (Fig. 401).
(2)
Disconnect electrical connector at aileron force limiter.
(3)
Remove cable shields and disconnect cables ACBA and ACBB at turnbuckles. Secure disconnected cables and tag cables to facilitate reassembly.
(4)
Disconnect left cables AA and AB at turnbuckles. Secure disconnected cables and tag cables to facilitate reassembly.
(5)
Disconnect landing gear control cables and landing gear brake control cables. Secure and tag cables to facilitate reassembly.
(6)
Remove control cabin air duct.
(7)
Disconnect speed brake control cables at turnbuckles. Secure and tag cables to facilitate reassembly.
(8)
Remove nuts, washers and bolts securing aileron control wheel drum to structure.
(9)
Slide aileron control wheel drum assembly downward while guiding cables ACBA and ACBB through cutouts until assembly is separated from structure.
(10)
Remove nut, washers and screws securing cable guards, and remove cable guards.
(11)
Disengage cables AA and AB from aileron control wheel drum.
(12)
If required, remove roll force transducer and aileron force limiter (Ref Chapter 22, Autopilot).
500
27-11-51 Page 406 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. Jun 20/90
B. Install Aileron Control Wheel Drum
(1)
If used bolts, bushings, bearings or other components with wear limits are being installed, check for allowable wear (Ref 27-11-51, Inspection/Check).
(2)
Check that fork is secured to drum with self-locking shim nut and complete bolt chamfer is exposed beyond end of nut.
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