737-300 400 500 AMM 飞机维护手册 EXHAUST(18)

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 B.  The left (right) half of the thrust reverser for the left engine is interchangeable with the left (right) half of thrust reverser for the right engine. Make sure the cascade assemblies are installed in the correct configuration for that engine.
 2.  Fan Duct Cowl and Thrust Reverser (Fig. 1, 2 and 3)
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 A.  The fan duct cowl and thrust reverser consist of two halves hinged at the top, and latched together at bottom.
 B.  The inner and outer ducting provide a flow path for fan air exhaust.
 C.  The translating sleeve and blocker door provide means of re-directing fan exhaust through the cascade segments during thrust reverser operation.
 D.  The thrust reverser may be deactivated by inserting deactivation pins in holes provided and by installing turnbuckles on each sleeve.
 3.  Sleeve (Fig. 3)
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 A.  When the thrust reverser is deployed, the sleeves translate aft extending the blocker doors, exposing the cascade segments and reversing the fan exhaust. The fan exhaust is redirected by the blocker doors, and sent throught the cascade segments, which direct the airflow away from the airplane.
 B.  Sleeve translation is accomplished by six hydraulic actuators, three actuators on each thrust reverser half. The sleeve moves on tracks and sliders, which provide structural support, while allowing movement.
 C.  In stowed position, the sleeve covers the cascade segments and
 streamlines the inner duct to reduce drag.

 D.  There are two sleeves on each engine, one on each thrust reverser half. There is no interconnection between the two sleeves.
 E.  The sleeves are lined with acoustical material for sound suppression.
 F.  The sliders are mounted to the upper and lower sleeve. The slider assembly moves in the track assembly. The slider and track provide structural support while allowing thrust reverser movement.
 G.  Both the slider and track are permanently lubricated.
 4.  Blocker Doors (Fig. 4)
_____________
 A.  The forward section of the blocker door is attached to the sleeve with two 1/4 inch bolts in hinge assemblies.
 B.  The blocker door drag link attaches the blocker door to the inner duct. The drag link attaches to the blocker door with a link attachment fitting. The drag link attaches to the inner duct with a bolt.
 C.  As the sleeves translate aft, the blocker doors rotate into a blocking position, due to sleeve movement and the door's attachment to the inner duct.
 (1)  When extended, the doors block fan exhaust, forcing air in the reverse direction through the cascade segments. When retracted, the doors form part of the outer duct for fan exhaust air.
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 ALL  ú ú C01 Page 1 ú Jul 15/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
SEE A  FEEDBACK MECHANICAL WITH LOCK & ACTUATOR SYNCHRONIZED 
VALVES CONTROL ONE WAY ADAPTER CRANK MANUAL 
ADAPTER CRANK MANUAL 
INTERCONNECTING FLEXIBLE SHAFTS WITHIN TUBING  WITHOUT LOCK ACTUATOR SYNCHRONIZED 
DRAG LINK  A 
BLOCKER DOOR 
TRANSLATING SLEEVE 
HYDRAULIC ACTUATOR (6 PLACES)  REVERSED  TRANSLATING SLEEVE 
HYDRAULIC ACTUATOR (6 PLACES)  (10 PLACES) BLOCKER DOOR  CRUISE  DRAG LINK 
Figure 1 Thrust Reverser Assembly 

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 ALL  ú ú C01 Page 2 ú Nov 15/88
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
D.  Access to the blocker doors is by translating the sleeve. The blocker door fittings are then exposed from the aft side. The drag link is readily accessible at all times.
 5.  Cascades (Fig. 4)
________
 A.  The thrust reverser cascades nearly encircle the engine. The cascades are bolted to the torque box on the forward edge and to the cascade support ring on the aft edge.
　
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