TASK 27-11-12-402-031
 5.  Inboard Aileron Power Control Package Compensator Installation______________________________________________________________
 A. Consumable Materials
 (1)  
G00062 Fluid - Hydraulic, Fire-Resistant, BMS 3-11

 (2)  
D00054 Lubricant - Assembly, Skydrol, MCS352

 B.
Parts ~.............................................................................. | AMM | | AIPC | ................. ............................ | FIG | ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................ | 201 | 16 | Compensator | 27-11-12 | 05 | 40 | | | 48 | O-ring Packing | | | 45 | | | 48 | O-ring Packing | | | 50 | | | 49 | Screw | | | 30 | | | 50 | Washer | | | 35 | 2......…........…...................................…...........….....…........1

 C.
References

 (1)  
06-09-08/201, Wing Access Doors and Panels

 (2)  
12-12-01/301, Hydraulic System

 (3)  
24-22-00/201, Manual Control

 (4)  
29-11-00/201, Main Hydraulic Supply System

 D.
Access

 (1)  
Location Zone
 579 Inboard Aileron, LH
 679 Inboard Aileron, RH

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 (2)  
Access Panel
 573CB Hydraulic, LH
 573AB Inboard Aileron Actuator, LH
 573BB Inboard Aileron Actuator, LH
 673CB Hydraulic, RH
 673AB Inboard Aileron Actuator, RH
 673BB Inboard Aileron Actuator, RH

 E.
Procedure

 S 422-032
 (1)  
Install the compensator (Fig. 201):

 (a)  
Lubricate the O-ring packings (48) with assembly lubricant or hydraulic fluid before installation.

 (b)  
Install the new O-ring packings (48) on the compensator (16).

 (c)  
Install the compensator (16) with washers (50) and screws (49).

 (d)  
Tighten the screws (49) to 50-75 pound-inches.

 (e)  
Install the lockwire.

 S 862-033
 (2)  
For the applicable system, remove the DO-NOT-CLOSE tags and close these circuit breakers:

 (a)  
P180 DC Power Distribution Panel
 1) 180H7 LATERAL CONT VALV SYS 1
 2) 180E6 LATERAL CONT VALV SYS 2
 3) 180H22 LATERAL CONT VALV SYS 3
 4) 180E21 LATERAL CONT VALV SYS 4

 S 862-034
 (3)  
Set the FLT CONTROL HYD POWER - WING VALVE switches No. 1, 2, 3 and 4 on the P461 Pilot' Overhead Maintenance Panel to NORM.

 (4)  
Do this task: "Hydraulic System Pressurization" (Ref 29-11-00/201).

 S 862-036
 NOTE: Hydraulic systems No. 1 and 3 for the left power control
____ package. Hydraulic systems No. 2 and 4 for the right power control package).
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 S 862-037
 (5)  
Operate the aileron a minimum of two full cycles.

 S 792-081

 (6)  
Examine the compensator for leaks.

 F.
Put the Airplane Back To Its Usual Condition

 S 862-038
 (1)  
Do this task: "Hydraulic System Depressurization" (Ref 29-11-00/201).

 S 862-039

 (2)
Do this task: "Electrical Power Removal" (Ref 24-22-00/201).

 S 412-040

 (3)  
Close the access panels (Ref 06-09-08/201).

 S 612-041

 (4)  
Do this task: "Hydraulic Reservoir Servicing" (Ref 12-12-01/301).

 TASK 27-11-12-002-042
 6.  Inboard Aileron Power Control Package Filter Removal____________________________________________________
　
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