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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
S 014-008-C00
 WARNING: OBEY THE INSTRUCTIONS IN THE PROCEDURE TO OPEN THE THRUST
_______
 REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS WHEN YOU OPEN
 THE THRUST REVERSERS, INJURIES TO PERSONS OR DAMAGE TO
 EQUIPMENT CAN OCCUR.

 (7)  Open the left thrust reverser (AMM 78-31-00/201).
 F. Remove the MEC (Fig. 401)
 S 864-064-C00
 WARNING: DO NOT TOUCH THE COMPONENTS OF THE OIL SYSTEM IF THE ENGINE IS
_______
 HOT. THESE COMPONENTS STAY HOTTER THAN OTHER COMPONENTS. HOT
 COMPONENTS CAN BURN YOU.

 WARNING: DO NOT OPEN THE OIL SYSTEM UNTIL THE PRESSURE GOES TO ZERO.
_______
 THE PRESSURE GOES TO ZERO APPROXIMATELY 5 MINUTES AFTER AN
 ENGINE SHUTDOWN. A PRESSURIZED ENGINE CAN RELEASE A SPRAY OF
 HOT OIL THAT CAN BURN YOU.

 WARNING:_______DO NOT LET HOT OIL GET ON YOU. PUT ON GOGGLES AND OTHER
 EQUIPMENT FOR PROTECTION OR LET THE ENGINE BECOME COOL. HOT
 OIL CAN BURN YOU.

 WARNING:_______DO NOT LET ENGINE OIL STAY ON YOUR SKIN. USE ENGINE OIL IN AREA WITH GOOD VENTILATION. ENGINE OIL IS POISONOUS AND CAN BE ABSORBED THROUGH YOUR SKIN. ENGINE OIL FUMES CAN IRRITATE YOUR RESPIRATORY TRACT.
 CAUTION: DO NOT LET ALKALINE CLEANING FLUID GET INTO THE ENGINE OIL.
_______
 VERY SMALL QUANTITIES OF THIS FLUID CAN CHANGE THE ENGINE OIL.
 DAMAGE TO EQUIPMENT CAN OCCUR.

 CAUTION: DO NOT LET HOT OIL GET ON THE ENGINE OR OTHER COMPONENTS.
_______
 IMMEDIATELY CLEAN THE COMPONENT IF OIL FALLS ON IT. OIL CAN
 CAUSE DAMAGE TO PAINT AND RUBBER.

 (1)  
Obey the above Warnings and Cautions through all this procedure.

 S 034-010-C00

 (2)  
Disconnect these electrical connectors from the MEC
 (Fig. 402, Sheet 1):

 (a)  
The VBV reset solenoid connector, D3012, is on the top side of the MEC.

 (b)  
The idle reset solenoid connector, D3016, is on the lower inboard side of the MEC.

 (c)  
The Power Lever Angle (PLA) position connector (blue cable) is on the lower aft side of the MEC.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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
FUEL FLOW
THRUST AND START
TRANSMITTER
FUEL SUPPLY
PUSH-PULL CABLES INLET LINE
HORIZONTAL
DRIVE SHAFT

FUEL OUTLET LINE
TRANSFER GEARBOX HEATER SERVO FUEL
ACCESSORY
GEARBOX

COVER FOR THE
CORE ROTATION
DRIVE PAD

ELECTRICAL CABLE AND SUPPORT TUBE
MAIN OIL/FUEL HEAT EXCHANGER
MAIN ENGINE CONTROL (MEC)
MEC
CONTROL BOX

MAIN OIL
SCAVENGE
FILTER

A
Main Engine Control Installation
Figure 401

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 73-21-01
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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
SUPPORT TUBE
ELECTRICAL CABLES
CONNECTOR FOR THE
VBV RESET SOLENOID,
D3012
CONNECTOR FOR THE IDLE RESET SOLENOID, D3016
CONNECTOR FOR THE POWER LEVER ANGLE (PLA) POSITION
CONNECTOR FOR THE THRUST LEVER ANGLE (TLA), D2876
SEE B
FWD

FUEL PUMP ASSEMBLY
(LOCATED AT THE 8:30 O'CLOCK POSITION)

A
MEC Electrical Connector Installation Figure 402 (Sheet 1)
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