LANDING GEARLOGIC SHELF
1 AIRPLANES WITHOUT THRUST
2 AIRPLANES WITH THRUSTREVERSER SYNC LOCKS REVERSER SYNC LOCKS
Thrust Reverser Control Electrical SchematicFigure 2 (Sheet 2)
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78-34-00
ENGINE ACCESSORY UNITS ú ú C02 Page 9 ú Nov 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
LANDING GEAR
LOGIC SHELF
AIRPLANES WITHOUT THRUST
AIRPLANES WITH THRUSTREVERSER SYNC LOCKS REVERSER SYNC LOCKS
Thrust Reverser Control Electrical SchematicFigure 2 (Sheet 3)
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78-34-00
ENGINE ACCESSORY UNITS ú ú C02 Page 10 ú Nov 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
E39779
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
J20 MISC ELECT EQUIPMENT PANEL
LEFT ENGINE
Thrust Reverser Sync-Lock Control System Schematic
Figure 3 (Sheet 1)
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ALL ú ú C06 Page 11 ú Mar 15/98
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A87012
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
LEFT SLEEVE SYNC LOCK
RIGHT ENGINE
Thrust Reverser Sync-Lock Control System Schematic Figure 3 (Sheet 2)
A86929
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ALL ú ú C04 Page 12 ú Mar 15/98
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
(5)
To complete the circuitry to stow the thrust reverser the same conditions must be met as for deploying the thrust reverser except:
(a)
Reverse thrust levers are moved to stow position.
(b)
Thrust reverse control switch opens.
(c)
The solenoid on the arm valve remains energized because auto restow sensors are out of proximity.
(6)
After sleeves have retracted and auto restow sensors are in proximity the circuit is completed. The circuit stays completed for 10 seconds to insure that all the actuators have retracted completely.
(7)
Power is sent through the microswitch pack to a two minute time delay relay. The two minute time delay permits the thrust reverser to retract which provides time for the indicating system to detect failures that prevent the locking actuator from locking the thrust reverser sleeve in the retracted position. After two minutes, power is sent through the time delay relay to unlatch the latch relay, which then de-energizes the sync lock solenoid. This permits the sync lock to mechanically lock the rotary flex shaft system.
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ú
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ú ALL ú ú ú C05.101 Page 13 ú ú Jul 12/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
THRUST REVERSER CONTROL VALVE MODULE - REMOVAL/INSTALLATION
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