S 864-022
(3)
Remove the hydraulic power if it is not necessary
(AMM 29-15-00/201).
S 864-023
(4)
Remove the electrical power if it is not necessary
(AMM 24-22-00/201).
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22-12-21
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A
737-300/400/500MAINTENANCE MANUAL
YAW DAMPER COUPLER - REMOVAL/INSTALLATION
_________________________________________
1. General_______
A. This procedure contains two tasks. The first task is for the removal of the yaw damper coupler. The second task is for the installation of the yaw damper coupler.
B. You can find the yaw damper coupler in the main equipment center (E1-3).
TASK 22-12-31-004-010
2. Yaw Damper Coupler Removal__________________________
A. References
(1)
AMM 12-31-11/201, Body Section 41 Access Doors and Panels
(2)
AMM 20-10-07/201, E/E Rack Mounted Components
B. Access
(1)
Location zone
205 Electronic Compartment
(2)
Access Panel
1201 Electronic Equipment Access Door
C. Procedure
S 864-001
(1) Open these circuit breakers on the P18-1 panel and attach the DO-NOT-CLOSE tags:
(a)
YAW DAMPER AC
(b)
YAW DAMPER DC
S 014-002
(2) Open the electronic equipment access door to get access to the yaw damper coupler (AMM 12-31-11/201).
S 024-004
CAUTION: DO NOT REMOVE THE YAW DAMPER UNTIL 3 MINUTES AFTER YOU REMOVE
_______ THE ELECTRICAL POWER. DO NOT TOUCH THE CONNECTOR PINS OR OTHER CONDUCTORS ON THE YAW DAMPER. IF YOU TOUCH THESE CONDUCTORS, ELECTROSTATIC DISCHARGE CAN CAUSE DAMAGE TO THE YAW DAMPER.
(3) Remove the Yaw Damper Coupler (AMM 20-10-07/201).
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22-12-31
ALL ú ú 01 Page 401 ú Mar 15/96
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
TASK 22-12-31-404-011
3. Yaw Damper Coupler Installation_______________________________
A. References
(1)
AMM 20-10-07/201, E/E Rack Mounted Components
(2)
AMM 12-31-11/201, Body Section 41 Access Doors and Panels
(3)
AMM 22-12-32/501, Yaw Damper Coupler
(4)
AMM 24-22-00/201, Manual Control
B. Access
(1)
Location zone
205 Electronic Compartment
(2)
Access Panel
1201 Electronic Equipment Access Door
C. Procedure
S 864-003
(1) Make sure that you open these circuit breakers on the P18-1 panel and attach the DO-NOT-CLOSE tags:
(a)
YAW DAMPER AC
(b)
YAW DAMPER DC
S 434-006
CAUTION: DO NOT REMOVE THE YAW DAMPER UNTIL 3 MINUTES AFTER YOU REMOVE
_______ THE ELECTRICAL POWER. DO NOT TOUCH THE CONNECTOR PINS OR OTHER CONDUCTORS ON THE YAW DAMPER. IF YOU TOUCH THESE CONDUCTORS, ELECTROSTATIC DISCHARGE CAN CAUSE DAMAGE TO THE YAW DAMPER.
(2)
Install the yaw damper coupler (AMM 20-10-07/201).
S 864-015
(3)
Close these circuit breakers on the P18-1 panel and remove the DO-NOT-CLOSE tags:
(a)
YAW DAMPER AC
(b)
YAW DAMPER DC
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22-12-31
ALL ú ú 01 Page 402 ú Jul 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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