(a)
Make sure the alternate flap arm switch is in OFF position.
(b)
Attach a DO-NOT-OPERATE tag on the alternate flap arm switch.
(c)
Disconnect the electrical connector from the leading edge devices shutoff valve.
(d)
Make sure the override lever at the leading edge devices shutoff valve is in position 1.
WARNING: MAKE SURE TO INSTALL THE LOCK ASSEMBLY TO PREVENT
_______ ACCIDENTAL STANDBY SYSTEM OPERATION OF THE LEADING EDGE FLAPS AND SLATS. THE LEADING EDGE FLAPS AND SLATS CAN MOVE QUICKLY. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(e)
Install the flight controls lock assembly on the standby hydraulic module.
(f)
Install the lockpin.
TASK 27-81-00-002-010
6. Leading Edge Flap and Slat Locks Removal________________________________________
A. Special Tools and Equipment
(1)
F80048-84, -89, or -90 - Leading Edge Flap Actuator Locks
(2)
C27012-1 - Leading Edge Slat Actuator Lockout Set
(3)
F80049-12 - Flight Controls Lock Assembly
B.
Access
(1)
Location Zone
216 Main Wheel Well, LH
217 Main Wheel Well, RH
302 Outboard Leading Edge with Slats, LH
303 Inboard Leading Edge with Slats, LH
402 Outboard Leading Edge with Slats, RH
403 Inboard Leading Edge with Slats, RH
C.
Procedure
S 082-012
(1)
Remove the leading edge flap and slat locks:
(a)
Release the pressure from hydraulic system B (par. 3).
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
27-81-00
ALL ú ú 01 Page 218 ú Jul 12/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
WARNING: YOU MUST CAREFULLY REMOVE THE LEADING EDGE FLAP AND SLAT
_______ LOCKS. THE LEADING EDGE FLAPS AND SLATS CAN MOVE QUICKLY IF YOU DO NOT REMOVE THE LOCKS CORRECTLY. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(b)
Remove the leading edge flap and slat locks from the actuators of the leading edge flaps and slats.
(c)
Pressurize the hydraulic system B (par. 2).
(d)
Move the flap control lever to the FLAP UP detent to fully retract the trailing edge flaps and the leading edge flaps and slats.
(e)
Release the pressure from hydraulic system B (par. 3).
S 082-013
(2)
Remove the flight controls lock assembly (Fig. 201):
(a)
Remove the lockpin.
(b)
Remove the flight controls lock assembly from the standby hydraulic module.
(c)
Make sure the override lever at the leading edge devices shutoff valve is in position 1.
(d)
Connect the electrical connector to the leading edge devices shutoff valve.
(e)
Remove the DO-NOT-OPERATE tag from the alternate flap arm switch.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
27-81-00
ALL ú ú 01 Page 219 ú Nov 15/98
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
LEADING EDGE FLAP AND SLAT CONTROL SYSTEM- ADJUSTMENT/TEST
__________________________________________________________
1. General_______
A. There are five tasks in this procedure. The first task is the operational test of the leading edge flap and slat system. The second task is the operation test of the uncommanded leading edge extension with the standby hydraulic power. The third task is the adjustment test of the leading edge flap and slat system. The fourth task is the system test of the leading edge flap and slat system. The fifth task is the test of the alternate operation of the leading edge flap and slat system.
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