27-11-81
ALL ú ú 01 Page 501 ú Nov 15/93
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
Control Wheel Torque and Force Test Adapter
Figure 501
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27-11-81
ALL ú ú 01 Page 502 ú Mar 15/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
(f) Make sure the measured force increase the value of the artificial feel input force by 1.5 to 2.0 pounds or 10 to 13 pound-inches torque.
NOTE: The measured force must not be more than 4.5 pounds or
____
29 pound-inches torque.
1) Adjust the centering spring eyebolts if the forces are not in the specified limits:
NOTE: The centering spring forces will increase if you
____ tighten the eyebolt and decrease if you loosen the eyebolts.
a) Adjust the two centering springs equally. b) Equally tighten or loosen the nuts on each eyebolt equally in 1/2-turn increments.
(g)
Do steps (e) and (f) again, if it is necessary, until you get the correct centering spring tension.
(h)
Measure the force necessary to turn the captain's or the first officer's control wheel 75 degrees clockwise from the neutral position. 1) Make sure the force is not more than 123.5 pound-inches
torque or 19.0 pounds.
(i)
Release the control wheel from the 75 degrees clockwise position. 1) Make sure the control wheel goes back to the neutral
position in | 2.4 degrees.
(j)
Do steps (h) and (i) again but in the counterclockwise direction.
S 865-004
(4)
Operate the control wheel slowly through full range of the aileron travel.
(a)
Make sure the aileron system operates smoothly.
S 865-005
(5)
Do this task to depressurize hydraulic system A: "Aileron Hydraulic Systems A and B Depressurization" (Ref 27-11-00/201).
S 865-006
(6)
Operate the control wheel slowly through full range of the aileron travel.
(a)
Make sure the aileron system operates smoothly.
S 865-007
(7) Do this task to depressurize hydraulic system B: "Aileron Hydraulic Systems A and B Depressurization" (Ref 27-11-00/201).
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27-11-81
ALL ú ú 01 Page 503 ú Jul 15/92
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
NOTE: POINT B ON EACH AILERON MUST ALIGNPOINT B
VERTICALLY WITH POINT A TO |O.03 INCH.
Aileron Deflection Diagram Figure 502
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
27-11-81
ALL ú ú 01 Page 504 ú Jul 15/95
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
(8) S 865-008Do this task to pressurize hydraulic system A: "Aileron Hydraulic Systems A and B Pressurization" (Ref 27-11-00/201).
(9) S 865-009Operate the control wheel slowly through full range of the aileron travel. (a) Make sure the aileron system operates smoothly.
S 865-010
(10)
Do this task to pressurize hydraulic system B: "Aileron Hydraulic Systems A and B Pressurization" (Ref 27-11-00/201).
S 865-011
(11)
Measure the force necessary to manually turn the captain's control wheel clockwise and counterclockwise from the neutral position.
(a)
Measure the force necessary to turn the control wheel clockwise until ailerons start to move. 1) Make sure the force is not more than 29 pound-inches or 4.5
pounds.
(b)
Continue to turn the control wheel 5 degrees clockwise from the neutral position. 1) Make sure the force is not more than 35.5 pound-inches or
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