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BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
CFM56 ENGINES (CFM56-7) 737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
78-31-00-003
THRUST REVERSER - TRANSLATING SLEEVE
THRUST REVERSER - TRANSLATING SLEEVE
EFFECTIVITY
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D633A101-GUN Feb 10/2006
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
CFM56 ENGINES (CFM56-7) 737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
78-31-00-003
Purpose
The hydraulic actuators move the translating sleeves during T/
R deploy and stow operations.
The sync shafts make the hydraulic actuators extend and retract
at the same speed. The sync shafts also let you manually
operate the hydraulic actuators.
General
Each T/R half has three hydraulic actuators. The actuators
extend during a deploy operation and retract during a stow
operation. Each T/R half has one locking actuator and two nonlocking
actuators. The locking actuator must unlock for the other
hydraulic actuators on that same half to operate.
The locking actuators have a position feedback mechanism and
a manual unlock lever. The position mechanism operates a
linear variable differential transformer (LVDT). The manual
unlock lever lets you unlock the locking actuator for a manual
translation of the T/R sleeve.
See the thrust reverser indicating system section for more
information about the LVDT. (SECTION 78-36)
There are two sync shafts on each T/R half.
Location
The locking actuators are the top actuators on each T/R half.
The two non-locking actuators are below the locking actuators.
All actuators attach to the torque box and to the translating
sleeve.
You open the fan cowl and move the translating sleeve aft to get
access to the hydraulic actuators.
The upper sync shaft is inside the deploy hydraulic tube,
between the upper and center actuators. The lower sync shaft is
inside the deploy hydraulic tube, between the center and lower
actuators. The deploy tubes are larger than the stow tubes. You
open the fan cowl to get access to the tubing.
Training Information Point
You use the sync lock to manually operate the hydraulic
actuators and sync shafts.
See the thrust reverser control system section for more
information about the sync lock. (SECTION 78-34)
THRUST REVERSER - HYDRAULIC ACTUATORS AND SYNC SHAFTS - GENERAL DESCRIPTION
EFFECTIVITY
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D633A101-GUN Feb 10/2006
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
CFM56 ENGINES (CFM56-7) 737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
78-31-00-004
THRUST REVERSER - HYDRAULIC ACTUATORS AND SYNC SHAFTS - GENERAL DESCRIPTION
THRUST REVERSER - HYDRAULIC ACTUATORS AND SYNC SHAFTS - GENERAL DESCRIPTION
EFFECTIVITY
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D633A101-GUN Feb 10/2006
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CFM56 ENGINES (CFM56-7) 737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
78-31-00-004
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THRUST REVERSER - HYDRAULIC ACTUATORS AND SYNC SHAFTS - GENERAL DESCRIPTION
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D633A101-GUN Feb 10/2006
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
CFM56 ENGINES (CFM56-7) 737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
General
There are two types of T/R hydraulic actuators:
* Locking
* Non-locking.
Each T/R half has one locking actuator and two non-locking
actuators. The locking actuators have a feedback mechanism
and a manual unlock lever.
The feedback mechanism operates the linear variable
differential transformer (LVDT). The LVDT supplies translating
sleeve position data to the indicating system. See the thrust
reverser indicating system section for more information.
(SECTION 78-36)
The manual unlock lever lets you manually unlock the locking
actuator. The manual unlock lever is also a target for the T/R
sleeve lock sensor. See the thrust reverser control system
section for more information about this sensor.
(SECTION 78-34)
Location
The locking actuators are near the top of each T/R half. The two
non-locking actuators are below the locking actuators. All
actuators attach to the torque box at the forward end and to the
translating sleeve at the aft end.
You open the fan cowl and move the translating sleeve aft to get
access to the hydraulic actuators.
Physical Description
All of the hydraulic actuators have these parts and connections:
　
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