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Before the Pressure Removal (P/B 201)
32-51-00-820-802 Nose Wheel Steering System Adjustment (P/B 501)
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
EFFECTIVITY
GUN 001-005, 155-157, 201-999 PRE SB 737-27-1253 27-21-00
Config 1
Page 501
Jun 10/2007
D633A101-GUN
BOEING PROPRIETARY - Copyright#Unpublished Work - See title page for details
C. 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-1585 Kit - Rigging Pins, All Systems
(Part #: F70207-109, Supplier: 81205, A/P Effectivity: 737-600, -700,
-700C, -700ER, -700QC, -800, -900, -900ER, -BBJ)
D. Location Zones
Zone Area
112 Area Forward of Nose Landing Gear Wheel Well
211 Flight Compartment - Left
212 Flight Compartment - Right
311 Area Aft of Pressure Bulkhead - Left
312 Area Aft of Pressure Bulkhead - Right
E. Access Panels
Number Name/Location
112A Forward Access Door
113AW Forward Nose Wheel Well Panel
113BW Forward Nose Wheel Well Panel
114AW Forward Nose Wheel Well Panel
114BW Forward Nose Wheel Well Panel
317AL Tail Cone Access Door
F. Prepare for the Test
SUBTASK 27-21-00-860-070-001
(1) Do this task: Remove Pressure from the Rudder Hydraulic Systems A, B, and Standby,
TASK 27-21-00-800-802.
SUBTASK 27-21-00-010-017-001
(2) Open these access doors:
Number Name/Location
112A Forward Access Door
317AL Tail Cone Access Door
SUBTASK 27-21-00-010-018-001
(3) Open these access panels:
Number Name/Location
113AW Forward Nose Wheel Well Panel
113BW Forward Nose Wheel Well Panel
114AW Forward Nose Wheel Well Panel
114BW Forward Nose Wheel Well Panel
G. Procedure
SUBTASK 27-21-00-710-070-001
(1) Do the rudder forward quadrant adjustment:
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
EFFECTIVITY
GUN 001-005, 155-157, 201-999 PRE SB 737-27-1253 27-21-00
Config 1
Page 502
Jun 10/2007
D633A101-GUN
BOEING PROPRIETARY - Copyright#Unpublished Work - See title page for details
(a) Do these steps to set the jackshaft yoke to the middle position:
NOTE: The middle position of the jackshaft yoke is where the number of turns of the shaft
from the full forward and full aft adjustment are the same.
1) Turn the rudder pedal adjustment crank to move the rudder pedals full forward.
2) Turn the rudder pedal adjustment crank to move the rudder pedals full aft. Record the
number of turns.
3) Turn the rudder pedal adjustment crank half the recorded number of turns forward.
(b) Install the rig pin R-3 from the rig pin kit, SPL-1585 in the forward hole in the captain’s
rudder forward quadrant.
(c) Install the rig pin R-4 from the rig pin kit, SPL-1585 in the forward hole in the first officer’s
rudder forward quadrant.
(d) If you can not install rig pins R-3 or R-4, adjust the bus rod [6]:
1) Turn the turnbuckles to release the tension of rudder control cables RA and RB.
2) Remove the pin [5], nut [4], washer [3], spacers [2], bolt [1] to disconnect the bus rod [6]
from rudder forward quadrant. Discard the pin [5].
3) Install the rig pin R-3 from the rig pin kit, SPL-1585 in the forward hole in the captain’s
rudder forward quadrant.
4) Install the rig pin R-4 from the rig pin kit, SPL-1585 in the forward hole in the first
officer’s rudder forward quadrant.
5) Adjust the bus rod [6] until you can install the bolt [1] through the rudder forward
quadrant.
6) Install the spacers [2], washer [3], nut [4], and new pin [5].
7) If it is necessary, adjust the brake pushrods [12] to the nose wheel steering. To adjust
them, do this task: Nose Wheel Steering System Adjustment, TASK 32-51-00-820-802.
(e) Make sure the clearance between the cable guard blocks and the rudder forward
quadrants is 0.03 in. (0.76 mm) -- 0.050 in. (1.27 mm) through full travel.
(f) Remove the rig pins R-3 and R-4.
(g) Remove the nut [50], washer [49], washer [48], and bolt assembly [47] to disconnect the
standby rudder PCU control rod [34] from the rudder control torque tube [33].
(h) Remove the nut [45], washer [44], washer [43], and bolt assembly [42] to disconnect the
main rudder PCU control rod [36] from the rudder control torque tube [33].
(i) Move the captain’s rudder forward quadrant until you can install the rig pin R-3 in the aft rig
pin hole.
(j) Make sure there is no clearance between the captain’s forward quadrant and quadrant
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737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL飞机维护手册2(21)
