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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)
C. Consumable Materials
Reference Description Specification
G01912 Lockwire - Monel (0.032 In. Dia.) NASM20995N~
C32
(QQ-N-281)
D. Location Zones
Zone Area
112 Area Forward of Nose Landing Gear Wheel Well
E. Access Panels
Number Name/Location
112A Forward Access Door
113AC Fwd Nose Wheel Well Upper Access Panel
114AC Fwd Nose Wheel Well Upper Access Panel
311BL Stabilizer Trim Access Door
324CL Vertical Fin, Access
F. Rudder Forward Quadrant Installation
(Figure 402, Figure 403)
SUBTASK 27-21-51-420-001
(1) If you install the captain’s rudder forward quadrant [39], then do these steps (Figure 402):
(a) Install the lower bearing housing [67] to the jackshaft support channel [70] if it is necessary:
1) Put the lower bearing housing [67] on the jackshaft support channel [70].
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2) Install the bolts [55], washers [56], and nuts [57].
3) Install the bolt [64], washer [65], and nut [66].
(b) Put the rudder forward quadrant [39] in the upper bearing housing and the quadrant arm
thru the floor beam penetration.
(c) Attach the jackshaft support channel [70] to the airplane structure:
1) Install the screws [58], washers [59], and nuts [60].
2) Install the screw [61], washer [62], and nut [63].
(d) Install the screws [68] and washers [69] to connect the rudder pedal steering arm [24] to the
rudder forward quadrant [39].
1) Install the lockwire, G01912.
(e) Install the screws [52], washers [53], and nuts [5] to attach the cable guard [51] to the
jackshaft support channel [70].
SUBTASK 27-21-51-420-002
(2) If you install the first officer’s rudder forward quadrant [3], then do these steps:
(a) Install the lower bearing housing [67] to the jackshaft support channel [76] if it is necessary:
1) Put the lower bearing housing [67] on the jackshaft support channel [76].
2) Install the bolts [55], washers [56], and nuts [57].
3) Install the bolt [64], washer [65], and nut [66].
(b) Put the rudder forward quadrant [39] in the upper bearing housing and quadrant arm thru
the floor beam penetration.
(c) Attach the jackshaft support channel [76] to the airplane structure:
1) Install the screws [58], washers [59], and nuts [60].
2) Install the screw [61], washer [62], and nut [63].
(d) Attach the support [86] to the jackshaft support channel [76]:
1) Install the bolts [83], washers [84], and nuts [85].
(e) Connect the rudder pedal position sensor quadrant [23] to the rudder forward quadrant
[39].
1) Install screws [77] and washers [78].
2) Install the lockwire, G01912.
(f) Install the screws [52], washers [53], and nuts [54] to attach the cable guard [51] to the
jackshaft support channel [76].
SUBTASK 27-21-51-480-001
(3) Install rig pin R-3 from the rig pin kit, SPL-1585 in the forward rig pin hole of the captain’s rudder
forward quadrant [39].
SUBTASK 27-21-51-480-002
(4) Install rig pin R-4 from the rig pin kit, SPL-1585 in the forward rig pin hole of the first officer’s
rudder forward quadrant [39].
SUBTASK 27-21-51-820-006
(5) Make sure the clearance between the cable guard block [26] and the rudder forward quadrant
[39] is 0.030 to 0.050 inch (0.762 to 1.270 millimeters).
(a) If it is necessary, add or remove the shims [27]:
1) Remove the nuts [29], washers [28], and bolts [25] from the cable guard block [26].
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2) Add or remove the shims [27] laminations.
3) Install the bolts [25], washers [28], and nuts [29] to the cable guard block [26].
SUBTASK 27-21-51-420-003
(6) Temporarily install the bolt [45] to connect the bus rod [50] to the rudder forward quadrant [39].
(a) If it is necessary, adjust the bus rod [50] until rig pins R-3 and R-4 move freely.
SUBTASK 27-21-51-420-004
(7) Install the bolts [41], washers [42], nuts [43], and pins [44] to connect the rudder pedal tension
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737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL飞机维护手册2(94)
