*[1] REPLACE BEARING WHEN RADIAL PLAY EXCEEDS 0.0020 INCH.
*[2] REPLACE AILERON CONTROL ROD WHEN BEARING RADIAL PLAY EXCEEDS 0.0020 INCH.
Aileron Wing Quadrant Wear Limits 500
27-11-111 Figure 601 (Sheet 2) Aug 15/73
Page 602
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AILERON TRIM CONTROL UNIT - REMOVAL/INSTALLATION
1. Equipment and Materials
A. Tensiometer, 0- to 100-pound capacity
B. Rigging Pins Kit - F70207-3, -52, -61, or -84:
REF NO. 70207-( ) DIAMETER (INCHES) LENGTH (INCHES) FUNCTION
A/S-13 -8 0.309 - 0.311 3.7 + 0.25 Aileron Trim Gearbox
2. Remove Aileron Trim Control Unit
A. Place aileron trim control knob indicator in zero trim position (Fig. 401).
B. Insert rigging pin A/S-13 in aileron trim gearbox.
C. Remove access panel from right side of control stand.
D. Disconnect electrical wires from base of aileron trim wheel.
E. Disconnect cables ATA and ATB at turnbuckles.
F. Use phenolic faced clamps and secure aileron trim cables ATA and ATB aft of turnbuckles.
G. Tag disconnected cables to facilitate reassembly.
H. Remove aileron trim knob as follows:
(1)
Remove three mounting screws.
(2)
Remove assembly of aileron trim knob and adapter plate from spline on aft bearing housing.
(3)
If relamping or replacement of aileron trim knob is required, remove screws and washers retaining adapter plate to aileron trim knob.
I. Remove four screws retaining aft bearing housing to control stand structure.
J. Remove nuts, washers, and screws retaining forward bearing support to structure.
K. Remove trim control unit from control stand.
506
Feb 20/88 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 27-11-121 Page 401
G05698 G05713 G05724
Aileron Trim Control Unit Installation 500
27-11-121 Page 402 Figure 401 (Sheet 1) BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. May 15/68
500 Aileron Trim Control Unit Installation
May 15/68 Figure 401 (Sheet 2) BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 27-11-121 Page 403
Aileron Trim Control Unit Installation 506
27-11-121 Page 404 Figure 401 (Sheet 3) BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. May 15/69
L. Disassemble aileron trim control unit as follows;
(1)
Remove nut and washer to separate aft bearing housing from shaft.
(2)
Remove screws and washers to separate retainer plate from aft bearing housing.
(3)
Remove retainer ring and separate stop assembly from shaft.
(4)
Remove nut, washer, and screw securing cable drum to shaft and remove sleeve.
(5)
Separate forward bearing support from shaft, and remove cable drum.
(6)
Remove cables ATA and ATB from cable drum.
3. Install Aileron Trim Control Unit
A. If used bolts, bushings, bearings or other components with wear limits are being installed, check for allowable wear (Ref 27-11-121, Inspection/Check).
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