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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-1585 Kit - Rigging Pins, All Systems
(Part #: F70207-109, Supplier: 81205, A/P Effectivity: 737-600, -700,
-700C, -700ER, -700QC, -800, -900, -900ER, -BBJ)
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
324CL Vertical Fin, Access
324DL Trailing Edge Access
E. Prepare for the Removal
SUBTASK 27-21-91-860-020-001
(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 001-005, 155-157, 201-999 PRE SB 737-27-1253 27-21-91
Config 1
Page 401
Jun 10/2007
D633A101-GUN
BOEING PROPRIETARY - Copyright#Unpublished Work - See title page for details
SUBTASK 27-21-91-860-021-001
(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 27-21-91-010-006-001
(3) To get access to the main rudder PCU, do this task:
Remove this access panel:
Number Name/Location
324DL Trailing Edge Access
SUBTASK 27-21-91-010-007-001
(4) To get access to the rudder feel and centering unit, do this task:
Open this access panel:
Number Name/Location
324CL Vertical Fin, Access
SUBTASK 27-21-91-480-008-001
(5) Install the rig pin R-5 from rig pin kit, SPL-1585 in the rudder feel and centering unit (Figure 401).
F. Main Rudder PCU Removal
SUBTASK 27-21-91-020-019-001
CAUTION: MAKE SURE THAT YOU REMOVE THE VERNIER CONTROL ROD [8] BEFORE YOU
REMOVE THE MAIN RUDDER . FAILURE TO REMOVE THE VERNIER CONTROL ROD
[8] FIRST CAN CAUSE DAMAGE TO THE VERNIER CONTROL ROD [8].
(1) Remove the vernier control rod [8]:
(a) Remove the nuts [7], washers [6], washers [5], and bolt assemblies [4] to disconnect the
vernier control rod [8] from the external summing lever [3] and rudder actuator input crank
[10].
(b) Remove the vernier control rod [8] from the airplane.
SUBTASK 27-21-91-480-009-001
(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
installation [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 27-21-91-020-020-001
(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 001-005, 155-157, 201-999 PRE SB 737-27-1253 27-21-91
Config 1
Page 402
Jun 10/2007
D633A101-GUN
BOEING PROPRIETARY - Copyright#Unpublished Work - See title page for details
SUBTASK 27-21-91-020-021-001
CAUTION: MAKE SURE THAT YOU HOLD THE MAIN RUDDER DURING THE REMOVAL OF THE
FORWARD MANIFOLD [11]. THE PCU CAN FALL. THIS CAN CAUSE DAMAGE TO THE
MAIN RUDDER .
(4) Remove the nut [27], washer [26], nut [25], washer [24], washer [34], bushing [23], and bolt
assembly [22] to disconnect the forward manifold [11] from vertical fin structure.
SUBTASK 27-21-91-480-010-001
(5) Install the lock, SPL-1727 to hold the rudder in its position.
SUBTASK 27-21-91-020-022-001
(6) Disconnect the electrical connectors [9] from the main rudder pcu installation [1].
SUBTASK 27-21-91-020-023-001
(7) Disconnect the hydraulic lines from the main rudder pcu installation [1].
(a) Put a 1 U.S.-gal (3.81 l) oil resistant container, STD-203container below the hydraulic
connections.
(b) Disconnect the return line hydraulic system A [12] from the main rudder pcu installation [1].
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本文链接地址：
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL飞机维护手册2(110)
