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(Part #: F71267, Supplier: 81205, A/P Effectivity: 737-100, -200, -200C,
-300, -400, -500, -600, -700, -700C, -700ER, -700QC, -800, -900, -900ER,
-BBJ)
(Opt Part #: F71252, Supplier: 81205, A/P Effectivity: 737-100, -200,
-200C, -300, -400, -500)
SPL-1748 Adapter - Torque Wrench, Manual, Stabilizer Trim Wheel
(Part #: C27064-1, Supplier: 81205, A/P Effectivity: 737-600, -700,
-700C, -700ER, -700QC, -800, -900, -900ER, -BBJ)
D. Location Zones
Zone Area
211 Flight Compartment - Left
212 Flight Compartment - Right
311 Area Aft of Pressure Bulkhead - Left
312 Area Aft of Pressure Bulkhead - Right
E. Prepare for the Test
SUBTASK 27-41-00-020-005
(1) Do this task: Stabilizer Trim Motor Removal, TASK 27-41-71-000-801.
SUBTASK 27-41-00-480-002
(2) Install the wrench, SPL-1684 on the internal spline on the stabilizer gearbox.
(a) Make sure the wrench does not turn.
SUBTASK 27-41-00-480-003
(3) Install the adapter, SPL-1748 on the captain’s stabilizer trim wheel.
F. Procedure
SUBTASK 27-41-00-710-009
(1) Do a check of the manual clutch disconnect:
(a) Turn the captain’s stabilizer trim wheel 3 turns or more counterclockwise.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
EFFECTIVITY
GUN ALL 27-41-00
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(b) Make sure the torque necessary to operate the stabilizer trim wheel is not more than 163 inlb
(18.42 Nm).
NOTE: 163 in-lb is equal to a tangential force at the handle of the trim wheel of
approximately 46 lbs (205 N).
(c) Turn the captain’s stabilizer trim wheel 3 turns or more clockwise.
(d) Make sure the torque necessary to operate the stabilizer trim wheel is not more than 163 inlb
(18.42 Nm).
NOTE: 163 in-lb is equal to a tangential force at the handle of the trim wheel of
approximately 46 lbs (205 N).
SUBTASK 27-41-00-480-004
(2) Remove the wrench, SPL-1684 and the adapter, SPL-1748.
SUBTASK 27-41-00-420-002
(3) Do this task: Stabilizer Trim Motor Installation, TASK 27-41-71-400-801.
------------------------- END OF TASK ---------------------------
TASK 27-41-00-700-807
9. Column Actuated Stabilizer Trim Cutout Switch Override Test
A. General
(1) Use this test to make sure the horizontal stabilizer follows the commands from the STAB TRIM
switches, even though the column actuated STAB TRIM cutout switches give the opposite
command.
B. References
Reference Title
24-22-00-860-811 Supply Electrical Power (P/B 201)
27-31-00-800-801 Elevator Hydraulic System A and B - Pressurization (P/B 201)
27-31-00-800-802 Remove Pressure from the Elevator Hydraulic Systems A and B
(P/B 201)
C. Location Zones
Zone Area
211 Flight Compartment - Left
212 Flight Compartment - Right
330 Subzone - Left Horizontal Stabilizer and Elevator
340 Subzone - Right Horizontal Stabilizer and Elevator
D. Prepare for the Test
SUBTASK 27-41-00-860-016
(1) Do this task: Supply Electrical Power, TASK 24-22-00-860-811.
SUBTASK 27-41-00-860-017
(2) Make sure that these circuit breakers are closed:
F/O Electrical System Panel, P6-2
Row Col Number Name
B 10 C00207 FLIGHT CONTROL STAB TRIM CONT
D 10 C00840 FLIGHT CONTROL STAB TRIM ACTUATOR
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
EFFECTIVITY
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SUBTASK 27-41-00-780-001
(3) Do this task: Elevator Hydraulic System A and B - Pressurization, TASK 27-31-00-800-801.
E. Procedure
SUBTASK 27-41-00-710-010
WARNING: MAKE SURE THAT THE STABILIZER TRIM MOTOR HAS A MINIMUM 13 MINUTES OFF
FOR EVERY 2 MINUTES OPERATION. IF YOU DO NOT GIVE THE STABILIZER TRIM
MOTOR SUFFICIENT TIME OFF, DAMAGE TO THE STABILIZER TRIM MOTOR CAN
OCCUR.
(1) Do the column actuated stabilizer trim cutout switch override test:
(a) Make sure that the main cutout switch, S272 on the control stand is in the NORMAL
position.
(b) Set the STAB TRIM switch on the stab trim and cabin door, P8-47 module, to the OVERRIDE
position.
(c) Turn the stabilizer trim wheel to set the stabilizer to approximately 8 units of trim.
(d) Pull the captain’s control column full aft.
(e) Move and hold the STAB TRIM switches on the captain’s control wheel to the NOSE DOWN
position.
1) Make sure that the stabilizer leading edge moves up (STAB TRIM indicator movement
in the APL NOSE DOWN direction).
2) Release the STAB TRIM switches.
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737-600-700-800-900 AIRCRAFT MAINTENANCE MANUAL飞机维护手册3(117)
