VBV OPEN A END PORT
CDP (PS3) PORT
CBP PORT
AA
MEC Fittings and O-Rings
Figure 408 (Sheet 1)

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////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
VSV HEAD 
FITTING 
TC2 
FITTING 
O-RING 
CIT (P6) 
CIT (P6)  PORT  O-RING 
FITTING  TC1 FITTING 
O-RING 
PB  VSV HEAD 
FITTING  PORT 
SEE  C 
TC2 PORT 
TC1 PORT 
SEE  B 
CDP (PS3) 
FITTING 
CBP 
FITTING 
O-RING 
PB 
PORT 
O-RING 
PS12 
FITTING 
A-A 

MEC Fittings and O-Rings
Figure 408 (Sheet 2)

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E35264
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
TC3 
PC PORT  SEE  D  1 
SEE  D  1 
VSV HEAD 
END LINE  TC2 
TC1 
MEC 
ENGINE 
INBD 

IDLE RESET FWD SOLENOID
MEC
VIEW IN THE FORWARD DIRECTION BC
O-RING
FITTING AT PLUG AT PC PC AND TC3 AND TC3 PORTS PORTS
PORT PORT
O-RING
EXAMPLE OF PC AND TC3 PORTS, FITTINGS AND O-RINGS
D
1 ON ENGINES WITHOUT THE HPTCC TIMER, THE PC AND TC3 PORTS ARE PLUGGED. MEC Fitting and O-Ring Figure 408 (Sheet 3)
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////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
SEE A
VBV CLOSED A END FITTING A AND PORT
VBV OPEN END PORT
CDP (PS3) PORT
CBP PORT
A

MEC Top Fittings and O-Rings
Figure 409 (Sheet 1)

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
VBV OPEN END PORT
SEE B
PCR PORT
OVERBOARD
DRAIN PORT

TOP VIEW A-A
OVERBOARD DRAINHEATED SERVO FITTINGSUPPLY FITTING HEATED SERVO
SUPPLY PORT
O-RING
O-RINGVBV OPEN END FITTING
O-RING
VBV OPEN 
END PORT  FWD  VBV CLOSED
END PORT 
B

MEC Top Fittings and O-Rings
Figure 409 (Sheet 2)

//////////////////////// / /
CFM56 ENGINES
/ / ////////////////////////
HEATED SERVO SUPPLY PORT
VBV CLOSED
END PORT

PCR PORT
OVERBOARD DRAIN PORT
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