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SUBTASK 27-21-91-710-002-001
(4) Do this task: Authority Limiter Test, TASK 27-21-00-700-821-001.
SUBTASK 27-21-91-410-011-001
(5) Install this access panel:
Number Name/Location
324DL Trailing Edge Access
------------------------- END OF TASK ---------------------------
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
EFFECTIVITY
GUN 001-005, 155-157, 201-999 PRE SB 737-27-1253 27-21-91
Config 1
Page 418
Jun 10/2007
D633A101-GUN
BOEING PROPRIETARY - Copyright#Unpublished Work - See title page for details
MAIN RUDDER POWER CONTROL UNIT - REMOVAL/INSTALLATION
1. General
A. This procedure has these tasks:
(1) A removal of the main rudder power control unit (PCU)
(2) An installation of the main rudder PCU
(3) A removal of the main rudder PCU load limiter solenoid valve
(4) An installation of the main rudder PCU load limiter solenoid valve
TASK 27-21-91-000-803-002
2. Main Rudder Power Control Unit Removal
(Figure 401, Figure 402)
A. References
Reference Title
27-21-00-800-802 Remove Pressure from the Rudder Hydraulic Systems A, B, and
Standby (P/B 201)
B. Tools/Equipment
NOTE: When more than one tool part number is listed under the same "Reference" number, the
tools shown are alternates to each other within the same airplane series. Tool part numbers
that are replaced or non-procurable are preceded by "Opt:", which stands for Optional.
Reference Description
SPL-1727 Lock - Ground, Rudder, PCU Removed
(Part #: C27057-1, Supplier: 81205, A/P Effectivity: 737-600, -700,
-700C, -700ER, -700QC, -800, -900, -900ER, -BBJ)
SPL-1732 Equipment - Removal/Installation, Rudder PCU
(Part #: C27049-36, Supplier: 81205, A/P Effectivity: 737-600, -700,
-700C, -700ER, -700QC, -800, -900, -900ER, -BBJ)
(Opt Part #: C27049-1, Supplier: 81205, A/P Effectivity: 737-600, -700,
-700C, -700ER, -700QC, -800, -900, -900ER, -BBJ)
STD-203 Container - Oil Resistant, 1 U.S.-Gal (3.8 l)
C. Location Zones
Zone Area
324 Vertical Fin - Rear Spar To Trailing Edge
D. Access Panels
Number Name/Location
324DL Trailing Edge Access
E. Prepare for the Removal
SUBTASK 27-21-91-860-012-002
(1) Do this task: Remove Pressure from the Rudder Hydraulic Systems A, B, and Standby,
TASK 27-21-00-800-802.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
EFFECTIVITY
GUN 006-099, 101-122; GUN 001-005, 155-157, 201-999
POST SB 737-27-1253
27-21-91
Config 2
Page 401
Oct 10/2007
D633A101-GUN
BOEING PROPRIETARY - Copyright#Unpublished Work - See title page for details
SUBTASK 27-21-91-860-013-002
(2) Open these circuit breakers and install safety tags:
CAPT Electrical System Panel, P18-1
Row Col Number Name
C 7 C00285 YAW DAMPER AC
D 6 C01354 YAW DAMPER 2 DC
D 7 C00286 YAW DAMPER 1 DC
SUBTASK 27-21-91-860-018-002
(3) Open this circuit breaker and install safety tag:
F/O Electrical System Panel, P6-2
Row Col Number Name
D 15 C01628 FLIGHT CONTROL FORCE FIGHT MONITOR
SUBTASK 27-21-91-010-004-002
(4) To get access to the main rudder PCU, do this task:
Remove this access panel:
Number Name/Location
324DL Trailing Edge Access
F. Main Rudder PCU Removal
SUBTASK 27-21-91-020-011-002
CAUTION: MAKE SURE THAT YOU REMOVE THE CONTROL RODS [8] BEFORE YOU REMOVE
THE MAIN RUDDER PCU [1]. FAILURE TO REMOVE THE CONTROL ROD [8] FIRST CAN
CAUSE DAMAGE TO THE CONTROL ROD [8].
(1) Remove the control rods [8]:
(a) Remove the nuts [7], washers [6], washers [5], and bolts [4] to disconnect the control rods
[8] from the external summing levers [3].
(b) Remove the nuts [44], washers [43], washers [42], and bolts [41] to disconnect the control
rods [8] from the input cranks [10].
(c) Remove the control rods [8] from the airplane.
SUBTASK 27-21-91-480-005-002
(2) Install the equipment, SPL-1732 (Figure 402):
(a) Install the bracket assembly [56] with screws [51] and washers [52] to the vertical fin.
1) Tighten the screws [51] to 18-25 pound-inches (2.0-2.8 newton-meters).
(b) Install the beam assembly [55] with screws [53] and washers [54] to the main rudder PCU
[1].
1) Tighten the screw [53] to 45-60 pound-inches (5.0-6.8 newton-meters).
(c) Install the arm assembly [58] to the bracket assembly [56].
SUBTASK 27-21-91-020-012-002
(3) Remove the nut [32], washer [31], nut [30], washer [29], and bolt assembly [28] to disconnect the
rod assembly [2] from the rudder.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
EFFECTIVITY
GUN 006-099, 101-122; GUN 001-005, 155-157, 201-999
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL飞机维护手册2(115)
