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the proximity switch electronics unit (PSEU). This data is for the
takeoff warning system and to operate the SPEEDBRAKES
EXTENDED light.
See the PSEU section for more information. (SECTION 32-09)
See the takeoff/landing warning section for more information.
(SECTION 31-53)
Training Information Point
You can rig the ground spoiler interlock valve with the airplane
weight on the wheels or with the airplane on jacks.
SPEEDBRAKE CONTROL SYSTEM - GROUND SPOILER INTERLOCK VALVE
EFFECTIVITY
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737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
27-62-00-010
SPEEDBRAKE CONTROL SYSTEM - GROUND SPOILER INTERLOCK VALVE
SPEEDBRAKE CONTROL SYSTEM - GROUND SPOILER INTERLOCK VALVE
EFFECTIVITY
GUN ALL 27-62-00
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737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
27-62-00-010
Purpose
The ground spoiler actuators use hydraulic power to move the
ground spoilers.
Location
There are two ground spoiler actuators for each inboard ground
spoiler and one ground spoiler actuator for each outboard
ground spoiler.
The ground spoiler actuators attach to the rear spar of the wing
below each ground spoiler. To get access, raise the spoiler
panels and extend the TE flaps.
Functional Description
Each ground spoiler actuator has these components:
* Piston assembly
* Locking piston
* Locking keys
* Spring.
Each ground spoiler actuator has an internal mechanical lock
which locks the actuator in the retract position. With no extend
pressure, the spring moves the locking piston in the direction of
the locking keys. This causes the locking keys to move away
from the locking piston. This keeps the piston assembly in the
retract position.
When the actuator receives extend pressure, the pressure
causes the locking piston to compress the spring. This permits
the locking keys to move in. This unlocks the piston assembly
and permits it to extend.
SPEEDBRAKE CONTROL SYSTEM - GROUND SPOILER ACTUATORS
EFFECTIVITY
GUN ALL 27-62-00
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BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
27-62-00-011
SPEEDBRAKE CONTROL SYSTEM - GROUND SPOILER ACTUATORS
SPEEDBRAKE CONTROL SYSTEM - GROUND SPOILER ACTUATORS
EFFECTIVITY
GUN ALL 27-62-00
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737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
27-62-00-011
Purpose
The ground spoilers help reduce lift and increase drag of the
airplane during landing and refused takeoffs.
Location
There are two ground spoilers on each wing. The ground
spoilers are at the fixed trailing edge of the wings. On each
wing, there is one ground spoiler inboard of the engine strut
and one ground spoiler just inboard of the aileron.
Physical Description
The ground spoilers are made of composite materials. The
ground spoilers are not interchangeable.
Functional Description
The ground spoilers operate on the ground only. They use
inputs from the speedbrake lever.
The ground spoilers move up when the speedbrake lever
moves more than 31 degrees. Ground spoilers 1 and 12 move
up 60 degrees and ground spoilers 6 and 7 move up 52 degrees.
Stops in the ground spoiler actuators limit the movement of the
ground spoilers.
Training Information Point
When you rig the spoilers, keep a small gap between the spoiler
and the TE flap.
When you do maintenance around the spoilers, obey this
warning:
WARNING: DO NOT PUT A PART OF YOUR BODY BETWEEN
THE SPOILER AND THE WING UNLESS YOU
REMOVE THE HYDRAULIC POWER. THE
SPOILERS CAN CAUSE INJURY TO PERSONS.
SPEEDBRAKE CONTROL SYSTEM - GROUND SPOILERS
EFFECTIVITY
GUN ALL 27-62-00
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D633A101-GUN Jun 10/2006
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
27-62-00-012
SPEEDBRAKE CONTROL SYSTEM - GROUND SPOILERS
SPEEDBRAKE CONTROL SYSTEM - GROUND SPOILERS
EFFECTIVITY
GUN ALL 27-62-00
Page 29
D633A101-GUN Jun 10/2006
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
27-62-00-012
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