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Rudder Pedal Adjustment Crank Installation
Figure 401 (Sheet 1 of 4)/27-21-41-990-801
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
EFFECTIVITY
GUN ALL 27-21-41
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Rudder Pedal Adjustment Crank Installation
Figure 401 (Sheet 2 of 4)/27-21-41-990-801
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
EFFECTIVITY
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Rudder Pedal Adjustment Crank Installation
Figure 401 (Sheet 3 of 4)/27-21-41-990-801
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
EFFECTIVITY
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Rudder Pedal Adjustment Crank Installation
Figure 401 (Sheet 4 of 4)/27-21-41-990-801
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
EFFECTIVITY
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TASK 27-21-41-400-801
3. Rudder Pedal Adjustment Crank Installation
(Figure 401)
A. References
Reference Title
27-21-00-700-813-001 Rudder Pedal Adjustment and Limit Travel Test (P/B 501)
27-21-00-700-813-002 Rudder Pedal Adjustment and Limit Travel Test (P/B 501)
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-1689 Equipment - Alignment, Rudder Pedal Adjustment (B27064-5
included in kit B27064-1)
(Part #: B27064-1, Supplier: 81205, A/P Effectivity: 737-600, -700,
-700C, -700ER, -700QC, -800, -900, -900ER, -BBJ)
C. Consumable Materials
Reference Description Specification
D00013 Grease - Aircraft And Instrument Grease MIL-PRF-23827
(NATO G-354)
(Supersedes
MIL-G-23827)
G01048 Lockwire - Corrosion Resistant Steel (0.032 In. Dia.) NASM20995~
C32
D. Location Zones
Zone Area
112 Area Forward of Nose Landing Gear Wheel Well
221 Passenger Compartment - Aft of Control Compartment to Forward
Entry Door - Left
222 Passenger Compartment - Aft of Control Compartment to Forward
Entry Door - Right
E. Access Panels
Number Name/Location
112A Forward Access Door
F. Rudder Pedal Adjustment Crank Installation
SUBTASK 27-21-41-420-001
(1) Do these steps to install the cable [1]:
(a) Install the grommet on the cable [1].
(b) Push the cable [1] through the grommet hole.
NOTE: One end of the cable should reach the crank lever and the other end should reach
the rudder jackshaft [4].
(c) Install the cable clamps [6] and bolts [5] on the cable [1].
737-600/700/800/900
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1) Make sure the cable radius is more than 5.0 inches (127 millimeters) for all the curves
in the cable.
NOTE: If the cable radius is less than 5.0 inches (127 millimeters), the cable will not
operate correctly.
SUBTASK 27-21-41-420-002
(2) Connect the cable [1] to the rudder pedal jackshaft [4]:
(a) Put the washer [2] and retaining nut [3] on the cable [1].
(b) Put the cable [1] through the rudder jackshaft [4].
(c) Apply a thin layer of grease, D00013 to the outside diameter of the cable [1] before it is
installed in the rudder jackshaft [4].
(d) Do these steps:
1) Install the alignment tool equipment (B27064-5), SPL-1689 through the hole in the
bottom of the rudder jackshaft [4] to hold the jackshaft universal joint in its position.
2) Turn the cable [1] end until it engages the jackshaft pin.
3) Use the crowfoot wrench to hold the retaining nut [3].
4) Use the flare nut wrench to hold the sleeve of the cable [1].
(e) Tighten the retaining nut [3].
1) Tighten the retaining nut [3] to 90-400 pound-inches (10.2-45.2 newton-meters) before it
touches the jackshaft support.
2) Turn the retaining nut [3] 1/4 to 1/2 of a turn more when it touches the jackshaft support.
SUBTASK 27-21-41-420-003
(3) Do these steps to connect the cable [1] to the crank lever [10]:
(a) Put the cable retaining nut [13] on one end of the cable [1].
　
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