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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
(3)
4MIT65B80307-1 Protractor (Recommended)
(4)
F52485-500 Protractor (Optional)
(5)
3MIT65B80307-1 Control Wheel Adapter
B. Parts ~.............................................................................. | AMM | | AIPC | ................. ............................ | FIG | ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................ | 201 | 3 | Bolt | 27-11-06 | 02 | 30 | | | 4 | Washer | | | 35 | | | 5 | Nut | | | 40 | | | 6 | Pin | | | 25 | | | 16 | Actuator | | | 45 | | | 17 | Bolt | | | 30 | | | 18 | Washer | | | 35 | | | 19 | Nut | | | 40 | | | 20 | Pin | | | 25 | 2......…........…...................................…...........….....…........1
C. References
(1)
06-09-08/201, Wing Access Doors and Panels
(2)
24-22-00/201, Manual Control
(3)
29-11-00/201, Main Hydraulic Supply System
(4)
32-00-30/201, Landing Gear Door Locks
(5)
SSM 27-11-01
(6)
WDM 27-11-11
D.
Access
(1)
Location Zone
135 Wing Landing Gear Well, LH
136 Wing Landing Gear Well, RH
E.
Procedure
S 422-014
(1)
Install the aileron trim actuator (Fig. 201).
(a)
With rig pin A/S-2 installed, install the trim actuator (16) on the rigging beam bracket (21) with the nut (19), bolt (17), and washers (18).
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747-400 MAINTENANCE MANUAL
(b)
Install the cotter pin (20).
(c)
Connect the actuator output shaft (13) to the trim and feel mechanism with the nut (5), bolt (3), and washers (4).
(d)
Install the cotter pin (6).
(e)
Connect the electrical ground strap (23).
(f)
Remove rig pin A/S-2.
(g)
Connect the electrical connector DM254 (22) to the aileron trim actuator (16).
S 862-015
(2)
Remove the DO-NOT-CLOSE tag and close this circuit breaker:
(a)
P7 Overhead Circuit Breaker Panel
1) 7D17 AILERON TRIM
S 862-016
(3)
Do this task: "Supply Electrical Power" (Ref 24-22-00/201).
S 862-017
(4)
Do this task: "Hydraulic System Pressurization" (Ref 29-11-00/201).
S 712-018
(5)
Do a test of the aileron trim actuator:
(a)
With the control wheels at the neutral position, move the aileron trim switches to the LEFT WING DOWN position.
(b)
Visually make sure that the captain's control wheel turns counterclockwise 44 to 50 degrees from the neutral position.
NOTE: Manual input to the control wheel is necessary if
____ the wheel position is more than 20-degrees.
(c)
Do an equivalent test for the RIGHT WING DOWN position.
(d)
Operate the trim switches to get the trim system at the center.
F.
Put the Airplane Back to its Usual Condition
S 092-019
WARNING: YOU MUST CAREFULLY DO THE STEPS IN THE TASK BELOW TO REMOVE THE
_______ DOOR LOCKS FROM THE LANDING GEAR DOORS. THE DOORS CAN CLOSE QUICKLY IF YOU DO NOT REMOVE THE DOOR LOCKS CORRECTLY. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(1) Do this task: "Removal of the Door Locks from the Wing Landing Gear" (Ref 32-00-30/201).
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