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27-88-21
ALL ú ú 01 Page 503 ú Nov 15/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
S 865-018
WARNING:_______ MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF THE LEADING
EDGE AND THE TRAILING EDGE CONTROL SURFACES. THE LEADING EDGE
AND THE TRAILING EDGE CONTROL SURFACES WILL EXTEND. THIS CAN
CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
CAUTION: MAKE SURE THAT THE INBOARD FAN DUCT COWL AND THE THRUST
_______ REVERSERS ARE CLOSED OR COMPLETELY REMOVED BEFORE YOU EXTEND THE LEADING EDGE FLAPS. FAILURE TO CLOSE OR REMOVE THE INBOARD FAN DUCT COWL AND THE THRUST REVERSERS CAN CAUSE DAMAGE TO THE EQUIPMENT.
(6)
Put the alternate flap control switch to the DOWN position. Hold the switch until the dimension X is 20.25 to 20.40 inches more than the dimension X measured when the flaps are hydraulically retracted.
S 865-019
(7)
Put the alternate flap control switch to the OFF position.
S 035-020
(8)
Remove the switch cover from the flap control unit found in the ceiling area of the right wheel well (Fig. 502).
S 825-021
(9)
Adjust the switch away from the cam until the switch operates.
NOTE: The switch must move away from the cam when the switch
____ operates.
S 435-022
(10)
Install lockwire on the switch retainer nuts.
S 435-023
(11)
Install the switch cover on the flap control unit.
(12)
Put the alternate flap arm switch to the OFF position.
S 865-024
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
27-88-21
ALL ú ú 01 Page 504 ú Nov 15/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
S 865-031
WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF THE WING
_______ CONTROL SURFACES. THE WING CONTROL SURFACES CAN MOVE QUICKLY. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(13)
Make sure the leading edge and the trailing edge control surfaces retract.
S 435-025
(14)
Install the jackscrew fairing.
S 865-030
(15)
Pressurize hydraulic system B (Ref 27-81-00/201).
S 715-028
(16)
Do a test of the switch.
TASK 27-88-21-715-006
3. Flaps 10-Degree Switch Test (S584)
__________________________________
A. References
(1)
24-22-00/201, Manual Control
(2)
27-81-00/201, Leading Edge Flap and Slat Control System
B.
Access
(1)
Location Zone
101 Control Cabin, LH
102 Control Cabin, RH
217 Main Wheel Well, RH
C.
Do a test of the Flaps 10-Degree Switch
(1)
Pressurize hydraulic system B (Ref 27-81-00/201).
S 865-007
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
27-88-21
ALL ú ú 01 Page 505 ú Nov 15/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
S 865-008
(2) Supply electrical power (Ref 24-22-00/201).
S 865-010
WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF THE WING
_______ CONTROL SURFACES. THE WING CONTROL SURFACES CAN MOVE QUICKLY. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(3)
Put the flap control lever to the 10-unit detent.
(a)
Make sure the amber LE FLAPS TRANSIT light, on the P2 panel, comes on while the leading edge devices extend.
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