S 094-052
(2)
Remove these rig pins:
(a)
R4 (for the middle power control actuator linkage)
(b)
R3 (for the rudder feel, centering and trim mechanism).
S 414-046
(3)
Close access panels 324AL, 324BL, and 324CL and access doors 322BZ and 113AL (Ref 06-42-00).
S 864-047
(4)
Remove the DO-NOT-CLOSE tags and close these circuit breakers on the overhead panel, P11:
(a)
11H17, FLT CONT SHUTOFF TAIL LEFT
(b)
11H18, FLT CONT SHUTOFF TAIL CTR
(c)
11H28, FLT CONT SHUTOFF TAIL RIGHT
S 864-048
(5)
Remove the DO-NOT-OPERATE tags and move the FLT CONTROL SHUTOFF L, R, and C switches on the right side panel, P61, to ON.
(6)
Remove electrical power if it is not necessary (Ref 24-22-00).
S 864-049
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
RUDDER POWER CONTROL ACTUATOR (PCA) AND COMPONENTS - MAINTENANCE PRACTICES
__________________________________________________________________________
1. General
_______
A. This procedure contains the removal and installation procedures for the three rudder PCAs and their reaction links. These procedures are applicable to all of the rudder PCA assemblies.
TASK 27-21-20-022-001
2. Rudder PCA and Reaction Link - Removal
______________________________________
A. General
(1) This task contains two procedures, one to remove the rudder PCA and one to remove the rudder reaction link. Because this task contains two procedures, only the applicable group of steps must be done.
To start one of these procedures, do the "Prepare for Removal" group of steps. Then, do the group of steps that is necessary to remove the component.
B. Equipment
(1)
Nose Gear Towing Lever Lockpin - A09003-1
(2)
Rudder PCA Lockout Equipment - B27013-19
C.
References
(1)
06-42-00/201, Empennage Access Doors and Panels
(2)
24-22-00/201, Electrical Power - Control
(3)
29-11-00/201, Main (Left, Right, and Center) Hydraulic Systems
D.
Access
(1)
Location Zone 324 Vertical Stabilizer - Rear Spar to Trailing Edge
(2)
Access Panel
324CL Rudder Hinge and PCAs
E.
Prepare for Removal
S 862-002
(1)
Supply electrical power (Ref 24-22-00).
(2)
Open access panel 324CL (Ref 06-42-00).
S 012-003
NOTE: Access panel 324CL also removes the trailing edge beam and
____
rear seal.
S 012-004
(3) Remove the bullnose panel from the left side of the rudder.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
MIDDLE
5.
BOLT POWER CONTROL
6.
BUSHING
ACTUATOR
SEE A PCA AND REACTION LINK (ROD END)
7.
WASHER
8.
NUT
A-A
1. TORQUE TUBE
2. HYDRAULIC LINES
20.
BOLT
21.
WASHER
22.
WASHER
23.
NUT B
(4 LOCATIONS)
19. TRUNNION
BLOCK
25. ELECTRICAL CONNECTOR
17. ACTUATOR SHEAR OUT LEVER 24. PCA MONITOR SENSOR
3. REACTION LINK
18. INPUT
ROD SEE B
4. RUDDER FRONT SPAR
13.
BOLT
14.
WASHER 12. ACTUATOR A
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